ROHR, INC.

                                      AND

                             THE BANK OF NEW YORK,

                                   AS TRUSTEE

                          ----------------------------

                                  $50,000,000

                7 3/4% Convertible Subordinated Notes due 2004*

                          ----------------------------

                                   INDENTURE

                            Dated as of May 15, 1994



- - ----------------------------------
*Plus an over-allotment option up to $7,500,000

 
                               TABLE OF CONTENTS
                               -----------------




                                                              PAGE
                                                              ----
                                                           
ARTICLE 1   Definitions......................................   1
   SECTION 1.01    Definitions...............................   1
   SECTION 1.02    Other Definitions.........................  11
   SECTION 1.03    Incorporation by Reference of Trust
                     Indenture Act...........................  12
   SECTION 1.04    Rules of Construction.....................  13

ARTICLE 2   The Convertible Subordinated Notes...............  13
   SECTION 2.01    Form and Dating...........................  13
   SECTION 2.02    Execution and Authentication..............  13
   SECTION 2.03    Registrar and Paying Agent................  14
   SECTION 2.04    Paying Agent To Hold Money in Trust.......  15
   SECTION 2.05    Holder Lists..............................  15
   SECTION 2.06    Transfer and Exchange.....................  15
   SECTION 2.07    Replacement Convertible Subordinated
                     Notes...................................  16
   SECTION 2.08    Outstanding Convertible Subordinated
                     Notes...................................  16
   SECTION 2.09    When Treasury Convertible Subordinated
                     Notes Disregarded.......................  16
   SECTION 2.10    Temporary Convertible Subordinated
                     Notes...................................  17
   SECTION 2.11    Cancellation..............................  17
   SECTION 2.12    Defaulted Interest........................  17
   SECTION 2.13    CUSIP Number..............................  17

ARTICLE 3   Redemption.......................................  18
   SECTION 3.01    Notices to Trustee........................  18
   SECTION 3.02    Selection of Convertible Subordinated
                     Notes To Be Redeemed....................  18
   SECTION 3.03    Notice of Redemption......................  18
   SECTION 3.04    Effect of Notice of Redemption............  19
   SECTION 3.05    Deposit of Redemption Price...............  20
   SECTION 3.06    Convertible Subordinated Notes Redeemed
                     in Part.................................  20

ARTICLE 4   Covenants........................................  20
   SECTION 4.01    Payment of Convertible Subordinated
                     Notes...................................  20
   SECTION 4.02    Commission Reports........................  21
   SECTION 4.03    Compliance Certificate....................  21
   SECTION 4.04    Maintenance of Office or Agency...........  21
   SECTION 4.05    Limitation on Sale of Assets..............  22
   SECTION 4.06    Continued Existence.......................  25
   SECTION 4.07    Taxes.....................................  25
   SECTION 4.08    Change of Control.........................  25


                                       i

 


                                                              PAGE
                                                              ----
                                                           
   SECTION 4.09    Appointments to Fill Vacancies in
                    Trustee's Office.........................  27
   SECTION 4.10    Further Instruments and Acts..............  27
   SECTION 4.11    Stay, Extension and Usury Laws............  27
   SECTION 4.12    Investment Company Act....................  28

ARTICLE 5   Successors.......................................  28
   SECTION 5.01    When the Company May Merge, Etc...........  28
   SECTION 5.02    Successor Corporation Substituted.........  29
   SECTION 5.03    Purchase Option on Change of Control......  29

ARTICLE 6   Defaults and Remedies............................  29
   SECTION 6.01    Events of Default.........................  29
   SECTION 6.02    Acceleration..............................  31
   SECTION 6.03    Other Remedies............................  32
   SECTION 6.04    Waiver of Past Defaults...................  32
   SECTION 6.05    Control by Majority.......................  32
   SECTION 6.06    Limitation on Suits.......................  33
   SECTION 6.07    Rights of Holders To Receive Payment......  33
   SECTION 6.08    Collection Suit by Trustee................  33
   SECTION 6.09    Trustee May File Proofs of Claim..........  34
   SECTION 6.10    Priorities................................  34
   SECTION 6.11    Undertaking for Costs.....................  34

ARTICLE 7   The Trustee......................................  35
   SECTION 7.01    Duties of the Trustee.....................  35
   SECTION 7.02    Rights of the Trustee.....................  36
   SECTION 7.03    Individual Rights of the Trustee..........  37
   SECTION 7.04    Trustee's Disclaimer......................  37
   SECTION 7.05    Notice of Defaults........................  37
   SECTION 7.06    Reports by the Trustee to Holders.........  38
   SECTION 7.07    Compensation and Indemnity................  38
   SECTION 7.08    Replacement of the Trustee................  39
   SECTION 7.09    Successor Trustee by Merger, etc..........  40
   SECTION 7.10    Eligibility, Disqualification.............  40
   SECTION 7.11    Preferential Collection of Claims
                     Against Company.........................  40

ARTICLE 8   Satisfaction and Discharge of Indenture..........  41
   SECTION 8.01    Termination of Company's Obligations......  41
   SECTION 8.02    Application of Trust Money................  44
   SECTION 8.03    Repayment to Company......................  44
   SECTION 8.04    Reinstatement.............................  45


                                       ii

 


                                                             PAGE
                                                             ----
                                                          
ARTICLE 9   Amendments....................................... 45
   SECTION 9.01    Without the Consent of Holders............ 45
   SECTION 9.02    With the Consent of Holders............... 46
   SECTION 9.03    Compliance with the Trust Indenture
                     Act..................................... 47
   SECTION 9.04    Revocation and Effect of Consents......... 47
   SECTION 9.05    Notation on or Exchange of Convertible
                     Subordinated Notes...................... 48
   SECTION 9.06    Trustee Protected......................... 48

ARTICLE 10  General Provisions............................... 48
   SECTION 10.01   Trust Indenture Act Controls.............. 48
   SECTION 10.02   Notices................................... 48
   SECTION 10.03   Communication by Holders With Other
                     Holders................................. 49
   SECTION 10.04   Certificate and Opinion as to
                     Conditions Precedent.................... 49
   SECTION 10.05   Statements Required in Certificate
                     or Opinion.............................. 50
   SECTION 10.06   Rules by Trustee and Agents............... 50
   SECTION 10.07   Legal Holidays............................ 51
   SECTION 10.08   No Recourse Against Others................ 51
   SECTION 10.09   Counterparts.............................. 51
   SECTION 10.10   Other Provisions.......................... 51
   SECTION 10.11   Governing Law............................. 52
   SECTION 10.12   No Adverse Interpretation of Other
                     Agreements.............................. 52
   SECTION 10.13   Successors................................ 52
   SECTION 10.14   Severability.............................. 53
   SECTION 10.15   Table of Contents, Headings, Etc.......... 53

ARTICLE 11  Subordination.................................... 53
   SECTION 11.01   Agreement To Subordinate.................. 53
   SECTION 11.02   Liquidation; Dissolution; Bankruptcy...... 53
   SECTION 11.03   Default on Designated Senior
                     Indebtedness............................ 54
   SECTION 11.04   Acceleration of Convertible
                     Subordinated Notes...................... 54
   SECTION 11.05   When Distributions Must Be Paid Over...... 55
   SECTION 11.06   Notice by the Company..................... 55
   SECTION 11.07   Subrogation............................... 55
   SECTION 11.08   Relative Rights........................... 56
   SECTION 11.09   Subordination May Not Be Impaired by
                     the Company............................. 56
   SECTION 11.10   Distribution of Notice to the
                     Representative.......................... 57
   SECTION 11.11   Rights of the Trustee and Paying
                     Agent................................... 57
   SECTION 11.12   No Fiduciary Duty to Holders of
                     Senior Indebtedness..................... 58
   SECTION 11.13   Authorization to Effect Subordination..... 58


                                      iii

 


                                                             PAGE
                                                             ----
                                                          
ARTICLE 12  Conversion of Convertible Subordinated Notes....  58
   SECTION 12.01   Conversion Privilege.....................  58
   SECTION 12.02   Manner of Exercise of Conversion
                     Privilege..............................  59
   SECTION 12.03   Cash Payments in Lieu of Fractional
                     Shares.................................  60
   SECTION 12.04   Adjustment of Conversion Price...........  60
   SECTION 12.05   Notice to Holders Prior to Certain
                     Corporate Actions......................  66
   SECTION 12.06   Reservation of Shares of Common
                     Stock..................................  67
   SECTION 12.07   Taxes upon Conversion....................  67
   SECTION 12.08   Covenants as to Common Stock.............  68
   SECTION 12.09   Consolidation or Merger or Sale
                     of Assets..............................  68
   SECTION 12.10   Disclaimer of Responsibility for
                     Certain Matters........................  69
   SECTION 12.11   Cancellation of Converted Notes..........  69
   SECTION 12.12   Voluntary Reduction......................  70


                                       iv

 
                             CROSS-REFERENCE TABLE*


                          Trust Indenture Act Section
                          ---------------------------

                                                              Indenture Section
                                                              -----------------
 
310(a)(1)..................................................................7.10
  (a)(2)...................................................................7.11
  (a)(3)...................................................................N.A.
  (a)(4)...................................................................N.A.
  (b).........................................................7.08, 7.10, 10.02
  (c)......................................................................N.A.
311(a).....................................................................7.11
  (b)......................................................................7.11
  (c)......................................................................N.A.
312(a).....................................................................2.05
  (b).....................................................................10.03
  (c).....................................................................10.03
313(a).....................................................................7.06
  (b)(1)...................................................................N.A.
  (b)(2)...................................................................7.06
  (c)...............................................................7.06, 10.02
  (d)......................................................................7.06
314(a)..............................................................4.01, 10.02
  (b)......................................................................N.A.
  (c)(1)..................................................................10.04
  (c)(2)..................................................................10.04
  (c)(3)...................................................................N.A.
  (d)......................................................................N.A.
  (e).....................................................................10.05
  (f)......................................................................N.A.
315(a)..................................................................7.01(b)
  (b)...............................................................7.05, 10.02
  (c)...................................................................7.01(a)
  (d)...................................................................7.01(c)
  (e)......................................................................6.11
316(a)(last sentence)......................................................2.09
  (a)(1)(A)................................................................6.05
  (a)(2)(B)................................................................6.04
 
                                       v

 
  (a)(2)...................................................................N.A.
  (b)......................................................................6.02
317(a)(1)..................................................................6.08
  (a)(2)...................................................................6.09
  (b)......................................................................2.04

                                      vi

 
     THIS INDENTURE, dated as of May 15, 1994, is between Rohr, Inc., a Delaware
corporation (the "Company"), and The Bank of New York, a New York State banking
corporation ("Trustee").  The Company has duly authorized the creation of its 
7 3/4% Convertible Subordinated Notes due 2004 (the "Convertible Subordinated
Notes") and to provide therefor the Company has duly authorized the execution
and delivery of this Indenture.  Each party agrees as follows for the benefit of
the other party and for the equal and ratable benefit of the holders from time
to time of the Convertible Subordinated Notes.

                                   ARTICLE 1

                                  Definitions

SECTION 1.01  Definitions.
              ----------- 

     "Acquired Indebtedness" of any specified Person means Indebtedness of any
other Person and its subsidiaries existing at the time such other Person merged
with or into or became a subsidiary of such specified Person or assumed by the
specified Person in connection with the acquisition of assets from such other
Person including, without limitation, Indebtedness of such other Person and its
subsidiaries incurred in connection with or in anticipation of (a) such other
Person and its subsidiaries being merged with or into or becoming a subsidiary
of such specified Person or (b) such acquisition by the specified Person.

     "Affiliate" means, when used with reference to any Person, any other Person
directly or indirectly controlling, controlled by, or under direct or indirect
common control with, the referent Person, as the case may be, or any Person who
beneficially owns (within the meaning of Rule 13d-3 and Rule 13d-5 under the
Exchange Act), directly or indirectly, 10% or more of the equity interests of
the referent Person or warrants, options or other rights to acquire or hold more
than 10% of any class of equity interests of the referent Person.  For the
purposes of this definition, "control" when used with respect to any specified
Person means the power to direct or cause the direction of management or
policies of the referent Person, directly or indirectly, whether through the
ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative of the foregoing.

     "Agent" means any Registrar, Paying Agent, Conversion Agent or co-
registrar.

     "Asset Sale" means any sale, lease, transfer, exchange or other disposition
by the Company or any subsidiary (or series of related sales, leases, transfers,
exchanges or dispositions) in excess of $1,000,000, including, without
limitation, dispositions pursuant to merger, consolidation or sale and leaseback
transactions, of (a) shares of Capital Stock of a subsidiary of the Company (pro
rated to the extent of the Company's interest therein), (b) all or substantially
all of the properties and assets of any division or line of business of the
Company or any subsidiary of the Company or (c) any other property or assets of
the

                                       1

 
Company (pro rated to the extent of the Company's interest therein) or of any
subsidiary of the Company (pro rated to the extent of the Company's interest
therein) outside the ordinary course of business of the Company or such
subsidiary (each referred to for purposes of this definition as a "disposition")
by the Company or by any of its subsidiaries (other than (i) dispositions by the
Company to a wholly owned subsidiary of the Company or by a subsidiary of the
Company to the Company or to a wholly owned subsidiary of the Company, (ii)
sales or other dispositions of inventory in the ordinary course of business,
(iii) any disposition of properties or assets that is consummated in accordance
with the provisions of Section 5.01, (iv) any disposition of any account
receivable pursuant to the Pooling and Servicing Agreement, (v) dispositions by
the Company or any subsidiary of the Company of the business jet related product
line, the overhaul and repair business as conducted by Rohr Aero Services, Inc.
and Rohr Aero Services Europe, respectively, on the Issue Date, the Hagerstown,
Maryland plant and the Auburn, Washington plant, in each case, including related
assets, (vi) the disposition by the Company or any subsidiary of the Company of
interests owned on the Issue Date in two trusts which own an Airbus A300
aircraft and a McDonnell Douglas DC10 aircraft, respectively and (vii) the
disposition of Building 107 (at the Company's facility in Chula Vista,
California) to (A) any pension plan of the Company or (B) to any other Person if
the net proceeds of such disposition are delivered to any pension plan referred
to in clause (A) of this definition, in either case resulting in the full
satisfaction (or in case the full amount of such net proceeds are so delivered
and shall be insufficient to effect such full satisfaction, the partial
satisfaction) of the Company's funding liabilities with respect to any such
pension plan or plans).

     "Bank Agent" means, at any time, the then-acting agent under the Revolving
Credit Agreement, which shall initially be Citicorp USA, Inc.

     "Board of Directors" means the Board of Directors of the Company or any
authorized committee of the Board of Directors.

     "Capital Stock" means, with respect to any Person, any and all shares,
interests, participations, rights in, or other equivalents (however designated
and whether voting or non-voting) of such Person's capital stock, including each
class of Common Stock or Preferred Stock of such Person, whether outstanding on
the Issue Date or issued after the Issue Date, and any and all rights, warrants
or options exchangeable for or convertible into such capital stock (but
excluding any debt security that is exchangeable for or convertible into such
capital stock).

     "Capitalized Lease Obligation" means any obligation under a lease that is
required to be classified and accounted for as a capital lease obligation under
GAAP and, for purposes of this Indenture, the amount of such obligations at any
date shall be the capitalized amount of such obligations at such date,
determined in accordance with GAAP.  The Stated Maturity of such obligation
shall be the date of the last payment of rent or any other amount due under such
lease prior to the first date upon which such lease may be terminated by the
lessee without penalty.

                                       2

 
     "Cash Equivalents" means (a) marketable direct obligations issued by, or
unconditionally guaranteed by, the United States Government or issued by any
agency thereof and backed by the full faith and credit of the United States, in
each case maturing within one year from the date of acquisition thereof,  (b)
marketable direct obligations issued by any state of the United States of
America or any political subdivision of any such state or any public
instrumentality thereof maturing within one year from the date of acquisition
thereof and, at the time of acquisition, having one of the two highest ratings
obtainable from either Standard & Poor's Corporation ("S&P") or Moody's
Investors Service, Inc.  ("Moody's"), (c) commercial paper maturing no more than
one year from the date of creation thereof and, at the time of acquisition,
having a rating of at least A-1 from S&P or at least P-1 from Moody's, (d)
certificates of deposit or bankers' acceptances maturing within one year from
the date of acquisition thereof issued by any commercial bank organized under
the laws of the United States of America or any state thereof or the District of
Columbia or any United States branch of a foreign bank having, at the date of
acquisition thereof, combined capital and surplus of not less than $250 million,
(e) repurchase obligations with a term of not more than seven days for
underlying securities of the types described in clause (a) above entered into
with any bank meeting the qualifications specified in clause (d) above and (f)
investments in money market funds which invest substantially all their assets in
securities of the types described in clauses (a) through (e) above.

     "Change of Control" means the occurrence of one or more of the following
events (whether or not approved by the Board of Directors of the Company): (a)
an event or series of events by which any Person or other entity or group of
Persons or other entities acting in concert as determined in accordance with
Section 13(d) of the Exchange Act, whether or not applicable (a "Group of
Persons") shall, as a result of a tender or exchange offer, open market
purchases, privately negotiated purchases, merger or otherwise (i) be or become,
directly or indirectly, the beneficial owner (within the meaning of Rule 13d-3
and Rule 13d-5 under the Exchange Act, whether or not applicable) of 50% or more
of the combined voting power of the then outstanding Voting Stock of the Company
or (ii) have the ability to elect, directly or indirectly, a majority of the
members of the Board of Directors of the Company or other equivalent governing
body thereof, (b) the shareholders of the Company shall approve any Plan of
Liquidation of the Company (whether or not otherwise in compliance with the
provisions of this Indenture),  (c) individuals who at the beginning of any
period of two consecutive calendar years constituted the Board of Directors of
the Company (together with any new directors whose election or appointment by
the Board of Directors of the Company or whose nomination for election by the
Company's shareholders was approved by a vote of at least a majority of the
members of the Board of Directors of the Company then still in office who either
were members of the Board of Directors of the Company at the beginning of such
period or whose election, appointment or nomination for election was previously
so approved) cease for any reason to constitute a majority of the members of the
Board of Directors of the Company then in office, or (d) the direct or indirect
sale, lease, exchange or other transfer, in one transaction or a series of
related transactions, of all or substantially all of the property or assets of
the Company to any Person or Group of Persons (whether or not otherwise in
compliance with the provisions of this Indenture).

                                       3

 
     "Commission" means the Securities and Exchange Commission.

     "Common Stock" of any Person means any and all shares, interests or other
participations in, and other equivalents (however designated and whether voting
or non-voting) of any Person's common stock, whether outstanding on the Issue
Date or issued after the Issue Date, and includes, without limitation, all
series and classes of such common stock.

     "Company" means the party named as such above until a successor replaces it
in accordance with Article 5 and thereafter means the successor.

     "Consolidated Net Worth" of a Person at any date means the Consolidated
Stockholders' Equity of such Person less (a) the amount of any gain resulting,
directly or indirectly, from the extinguishment, retirement or repurchase of any
Indebtedness of such Person or of any of its subsidiaries, (b) any revaluation
or other write-ups subsequent to the Issue Date in the book value of any asset
owned by such Person or a Consolidated Subsidiary and (c) any amounts
attributable to the cost of treasury stock and the principal amount of any
promissory notes receivable from the sale of Capital Stock of such Person or of
any of its subsidiaries.  Notwithstanding any of the foregoing, net deferred
income tax assets recorded in accordance with Statement of Financial Accounting
Standards No.  109, Accounting for Income Taxes ("SFAS 109"), shall be
calculated without regard to any valuation allowance with respect to such net
deferred tax asset recorded by the Company in accordance with SFAS 109.

     "Consolidated Stockholders' Equity" as of any date means, with respect to
any Person, the amount by which the assets of such Person and of its
subsidiaries on a consolidated basis exceed (a) the total liabilities of such
Person and of its subsidiaries on a consolidated basis, plus (b) any redeemable
Preferred Stock of any such Person or any redeemable Preferred Stock of any
subsidiary of such issued to any Person other than to such Person or to a wholly
owned subsidiary of such Person, in each case determined in accordance with
GAAP.

     "Consolidated Subsidiary" of any Person means a subsidiary which for
financial reporting purposes is or, in accordance with GAAP, should be,
accounted for by such Person as a consolidated subsidiary.

     "Convertible Subordinated Notes" means the Convertible Subordinated Notes
issued under this Indenture.

     "Conversion Agent" means any Person authorized by the Company to accept
Convertible Subordinated Notes for conversion pursuant to this indenture and
deliver shares of Common Stock (or other securities or property) deliverable
upon such conversion.

     "Conversion Notice" has the meaning specified in Section 12.02.

                                       4

 
     "Conversion Price" means the initial conversion price specified in the form
of Note in Section 17 of such form, as adjusted in accordance with the
provisions of Article 12.

     "Daily Market Price" when used with reference to the Common Stock or
another security means the price of a share of Common Stock or such other
security on any date, determined (a) on the basis of the last reported sales
price of the Common Stock or such other security for such date (i) as reported
on the composite tape, or similar reporting system, for issues listed on the New
York Stock Exchange (or if the Common Stock or such other security has not been
listed on that exchange, for issues listed on such other national securities
exchange upon which the Common Stock or such other securities are listed as may
be designated by the Board of Directors from time to time for the purposes
hereof) or (ii) if the Common Stock or such other security is not listed or
admitted to trading on any national securities exchange, as reported on the
National Market System of the National Association of Securities Dealers
Automated Quotation System ("Nasdaq") or (b) if there is no such reported sale
on the date in question, on the basis of the average of the closing bid and
asked quotations regular way so reported for such date or (c) if the Common
Stock or security is not listed on any national securities exchange or on the
Nasdaq National Market System, on the basis of the average of the high bid and
low asked quotations regular way on the date in question in the over-the-counter
market as reported by Nasdaq, or if not so quoted, as reported by National
Quotation Bureau, Incorporated or a similar organization.

     "Default" means any event that is, or after notice or passage of time or
both would be, an Event of Default (as defined in Section 6.01).

     "Designated Senior Indebtedness" means Senior Indebtedness of the Company
now or hereafter outstanding under (i) the Revolving Credit Agreement; (ii) the
Company's 9.35% Senior Notes due 2000 and 9.33% Senior Notes due 2002; (iii) the
Senior Notes; and (iv) any other Senior Indebtedness issued in one or more
substantially concurrent issuances on substantially similar terms, the aggregate
original principal amount of which is $50 million or more.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Fair Market Value" or "fair value" means, with respect to any asset or
property or Capital Stock, the price which could be negotiated in an arm's-
length, free market transaction, for cash, between an informed and willing
seller and an informed and willing and able buyer, neither of whom is under
undue pressure or compulsion to complete the transaction.  Fair Market Value
shall be determined by the Board of Directors of the Company acting reasonably
and in good faith and shall be evidenced by a written resolution of said Board
of Directors (certified by the Secretary or Assistant Secretary of the Company)
delivered to the Trustee, provided that if the aggregate non-cash consideration
to be received by the Company or any of its subsidiaries from any Asset Sale
shall exceed $10,000,000, then Fair Market Value shall be determined by an
Independent Financial Advisor.

                                       5

 
     "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession of the United States, which are in effect as of the Issue Date.

     "incur" means, with respect to any Indebtedness or other obligation of any
Person, to create, issue, incur (by conversion, exchange or otherwise), assume,
guarantee or otherwise become liable in respect of such Indebtedness or other
obligation or the recording, as required pursuant to GAAP or otherwise, of any
such Indebtedness or other obligation on the balance sheet of such Person (and
"incurrence," "incurred," "incurable" and "incurring" shall have meanings
correlative to the foregoing), provided that the accrual of interest (whether
such interest is payable in cash or in kind) and the accretion of original issue
discount shall not be deemed an incurrence of Indebtedness, provided, further,
that (a) any Indebtedness of a Person existing at the time such Person becomes
(after the Issue Date) a subsidiary (whether by merger, consolidation,
acquisition or otherwise) of the Company shall be deemed to be incurred by such
subsidiary at the time it becomes a subsidiary of the Company and (b) any
amendment, modification or waiver of any document pursuant to which Indebtedness
was previously incurred shall be deemed to be an incurrence of Indebtedness
unless such amendment, modification or waiver does not (i) increase the
principal or premium thereof or interest rate thereon (including by way of
original issue discount), (ii) change to an earlier date the Stated Maturity
thereof or the date of any scheduled or required principal payment thereon or
the time or circumstances under which such Indebtedness may or shall be
redeemed, (iii) if such Indebtedness is subordinated to the Convertible
Subordinated Notes, modify or affect, in any manner adverse to the holders of
the Convertible Subordinated Notes, such subordination or  (iv) if the Company
is the obligor thereon, provide that a subsidiary of the Company not already an
obligor thereon shall be an obligor thereon.

     "Indebtedness" means, with respect to any Person, at any date, any of the
following, without duplication, (a) any liability, contingent or otherwise, of
such Person (i) for borrowed money (whether or not the recourse of the lender is
to the whole of the assets of such Person or only to a portion thereof), (ii)
evidenced by a note, bond, debenture or similar instrument, (iii) for the
payment of money relating to a Capitalized Lease Obligation or (iv) with respect
to an obligation (whether issued or assumed) relating to the deferred purchase
price of property or services but excluding advances, deposits, partial and
progress payments, unpaid wages and related employee obligations, trade accounts
payable and accrued liabilities in each case arising in the ordinary course of
business that are not overdue by 180 days or more or are being contested in good
faith by appropriate proceedings promptly instituted and diligently conducted;
(b) all conditional sale obligations and all obligations under any title
retention agreement (even if the rights and remedies of the seller under such
agreement in the event of default are limited to repossession or sale of such
property); (c) reimbursement obligations of such Person with respect to letters
of credit and

                                       6

 
all obligations of such Person in respect of any banker's acceptance or similar
credit transaction entered into in the ordinary course of business; (d) all
Indebtedness of others secured by (or for which the holder of such Indebtedness
has an existing right, contingent or otherwise, to be secured by) any Lien on
any asset or property (including, without limitation, leasehold interests and
any other tangible or intangible property) of such Person, whether or not such
Indebtedness is assumed by such Person or is not otherwise such Person's legal
liability, provided that if the obligations so secured have not been assumed in
full by such Person or are otherwise not such Person's legal liability in full,
the amount of such Indebtedness for the purposes of this definition shall be
limited to the lesser of the amount of such Indebtedness secured by such Lien or
the Fair Market Value of the assets or property securing such Lien; and (e) all
Indebtedness of others guaranteed (including all dividends of other Persons the
payment of which is guaranteed), directly or indirectly, by such Person or that
is otherwise its legal liability or which such Person has agreed to purchase or
repurchase or in respect of which such Person has agreed contingently to supply
or advance funds.

     "Indenture" means this Indenture as amended or supplemented from time to
time.

     "Independent Financial Advisor" means an accounting, appraisal or
investment banking firm of nationally recognized standing that is, in the
reasonable and good faith judgment of the Board of Directors of the Company,
qualified to perform the task for which such firm has been engaged and
disinterested and independent with respect to the Company and its Affiliates.

     "Interest Payment Date" means May 15 and November 15 of each year.

     "Issue Date" means the date on which the Convertible Subordinated Notes are
originally issued under this Indenture.

     "Lien" means, with respect to any Person, any mortgage, pledge, lien,
encumbrance, easement, restriction, covenant, right-of-way, charge or adverse
claim affecting title or resulting in an encumbrance against real or personal
property of such Person, or a security interest of any kind (including any
conditional sale or other title retention agreement, any lease in the nature
thereof, including any sale and leaseback transaction, any option or other
similar agreement to sell, in each case securing obligations of such Person and
any filing of or agreement to give any financing statement under the Uniform
Commercial Code (or equivalent statute or statutes) of any jurisdiction other
than to reflect ownership by a third party of property leased to the referent
Person or any of its subsidiaries under a lease that is not in the nature of a
conditional sale or title retention agreement).

     "Material Subsidiary" means, at any date of determination, any subsidiary
of the Company that, together with its subsidiaries, (i) for the most recent
fiscal year of the Company accounted for more than 5% of the consolidated
revenues of the Company or (ii) as of the end of such fiscal year, was the owner
of more than 5% of the consolidated assets of the Company, all as set forth on
the most recently available consolidated financial

                                       7

 
statements of the Company and its Consolidated Subsidiaries for such fiscal year
prepared in conformity with generally accepted accounting principles as then in
effect.

     "Maturity Date" means May 15, 2004.

     "Net Cash Proceeds" means, with respect to any Asset Sale, the proceeds of
such Asset Sale in the form of cash or Cash Equivalents, including payments in
respect of deferred payment obligations (to the extent corresponding to the
principal, but not interest, component thereof) when received in the form of
cash or Cash Equivalents (except to the extent such obligations are financed or
sold with recourse to the Company or any subsidiary of the Company) and proceeds
from the conversion of other property received when converted to cash or Cash
Equivalents, net of (a) reasonable third-party brokerage commissions and other
reasonable third-party fees and expenses (including fees and expenses of counsel
and investment bankers) related to such Asset Sale,  (b) provisions for all
taxes as a result of such Asset Sale computed on a consolidated basis reflecting
consolidated results of operations of the Company and its subsidiaries, taken as
a whole, (c) payments made to repay Indebtedness or any other obligation
outstanding at the time of such Asset Sale that was incurred in accordance with
this Indenture and that either (i) is secured by a Lien incurred in accordance
with this Indenture on the property or assets sold or (ii) is required to be
paid as a result of such sale in each case to the extent actually repaid in cash
and (d) appropriate amounts to be provided by the Company or any subsidiary of
the Company as a reserve against liabilities associated with such Asset Sale,
including, without limitation, pension and other post-employment benefit
liabilities, liabilities related to environmental matters and liabilities under
any indemnification obligations associated with such Asset Sale, all as
determined in conformity with generally accepted accounting principles as then
in effect.  For purposes of this definition and Section 4.05 "cash" means U.S.
dollars or such money as is freely and readily convertible into U.S.  dollars.

     "Officer" means the Chairman of the Board, the Chief Executive Officer, the
President, the Chief Financial Officer, the Chief Accounting Officer, any
Executive Vice President, Senior Vice President or Vice President, the
Treasurer, any other executive officer, the Secretary and any Assistant
Treasurer or any Assistant Secretary of the Company.

     "Officers' Certificate" means a certificate signed by two Officers, one of
whom must be the principal executive officer, principal financial officer, the
treasurer or principal accounting officer of the Company.

     "Opinion of Counsel" means a written opinion from legal counsel who may be
an employee of or counsel to the Company or the Trustee except to the extent
otherwise indicated in this Indenture.

                                       8

 
     "Permitted Program Investment" means an investment in design, engineering,
tooling or similar costs related to a program undertaken by the Company in the
ordinary course of its business.

     "Person" means any individual, corporation, partnership, joint venture,
trust, estate, unincorporated organization or government or any agency or
political subdivision thereof.

     "Plan of Liquidation" means a plan (including by operation of law) that
provides for, contemplates or the effectuation of which is preceded or
accompanied by (whether or not substantially contemporaneously) (i) the sale,
lease, conveyance or other disposition of all or substantially all of the assets
of the Company otherwise than as an entirety or substantially as an entirety and
(ii) the distribution of all or substantially all of the proceeds of such sale,
lease, conveyance or other disposition and all or substantially all of the
remaining assets of the Company to holders of capital stock of the Company.

     "Pooling and Servicing Agreement" means the Pooling and Servicing Agreement
dated as of December 23, 1992, among the Company, the Company's wholly owned
subsidiary RI Receivables, Inc.  and Bankers Trust Company, as trustee on behalf
of the Certificateholders (as defined therein), and related documentation and
any extension, renewal, modification, restatement or replacement thereof (in
whole or in part), as the same may be amended, supplemented or otherwise
modified from time to time; provided, however, the investors in any such
receivables program shall not obtain an interest in receivables sold under such
program which exceeds $70 million in aggregate principal amount at any one time.

     "Preferred Stock" means the Capital Stock of any Person (other than the
Common Stock of such Person) of any class or classes (however designated) that
ranks prior, as to the payment of dividends or as to the distribution of assets
upon any voluntary or involuntary liquidation, dissolution or winding-up of such
Person, to shares of Capital Stock of any other class of such Person.

     "pro forma" means, with respect to any calculation made or required to be
made pursuant to the terms of this Indenture, a calculation in accordance with
Article 11 of Regulation S-X under the Securities Act.

     "Prospectus" means the Company's final prospectus dated May 12, 1994 in
respect of the public offering of the Convertible Subordinated Notes.

     "Qualified Capital Stock" means, with respect to any Person, any Capital
Stock of such Person that is not Disqualified Capital Stock or convertible into
or exchangeable or exercisable for Disqualified Capital Stock and includes
Rights and other securities issuable under the Company's Amended and Restated
Rights Agreement, dated as of April 6, 1990, between the Company and The First
National Bank of Chicago, as Rights Agent, as such agreement may be amended or
supplemented from time to time.

                                       9

 
     "redemption date" when used with respect to any of the Convertible
Subordinated Notes to be redeemed, means the date fixed by the Company for such
redemption pursuant to this Indenture and the Convertible Subordinated Notes.

     "redemption price" when used with respect to any of the Convertible
Subordinated Notes to be redeemed, means the price fixed for such redemption
pursuant to this Indenture and the Convertible Subordinated Notes.

     "Regular Record Date" means the May 1 or November 1 immediately preceding
each interest payment date.

     "Representative" means the Bank Agent and each trustee, agent or other
representative of the holders of any class of Senior Indebtedness (or, with
respect to any class of Senior Indebtedness which does not have any such
trustee, agent or other representative, any holder of such Senior Indebtedness
acting with the consent of the required lenders necessary to bind such class of
Senior Indebtedness) who has been so identified in writing to the Trustee and
the Company provided, however that solely for the purposes of  11.03 hereof, (i)
in the case of the Company's 9.33% Senior Notes, holders, acting as a group, who
represent in writing to the Trustee and the Company that they are owners of
record of at least 66-2/3% in interest of the Company's outstanding 9.33% Senior
Notes, or in the case of the 9.35% Senior Notes, holders, acting as a group, who
represent in writing to the Trustee and the Company that they are the owners of
record of at least 66-2/3% in interest of the Company's outstanding 9.35% Senior
Notes.

     "Revolving Credit Agreement" means the Credit Agreement dated as of April
26, 1989, among the Company, the lenders party thereto, and the Bank Agent, and
any agreement governing Indebtedness incurred to refund or refinance the
borrowings, letters of credit and commitments then outstanding or permitted to
be outstanding under the Revolving Credit Agreement, in each case together with
the related notes and any other instruments and agreements executed from time to
time in connection therewith, and in each case as amended, modified,
supplemented, extended, renewed, restated, refunded, replaced or refinanced (in
whole or in part, and without limitation as to amount, terms, conditions,
covenants and other provisions) from time to time.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Senior Notes" means the 11-5/8% Senior Notes due 2003 of the Company
offered concurrently with the Convertible Subordinated Notes.

     "Senior Note Indenture" means that certain indenture by and between the
Company and IBJ Schroder Bank & Trust Company, as Trustee, governing the Senior
Notes as amended or supplemented from time to time.

                                       10

 
     "Senior Indebtedness" means all present or future Indebtedness of the
Company described in clauses (a)(i), (a)(ii), (a)(iv) and (c) of the definition
of Indebtedness, created, incurred, assumed or, except to the extent described
below, guaranteed (to the extent of the guarantee) by the Company (and all
renewals, modifications, extensions or refundings thereof), together with all
other obligations owing in connection therewith, including principal, interest
(including interest accruing on any such indebtedness which is Designated Senior
Indebtedness after the filing of a petition by or against the Company under any
bankruptcy law, whether or not the claim for such interest is allowed as a claim
after such filing in any proceeding under such bankruptcy law), premium, if any,
fees, costs, expenses and indemnities unless the instrument under which such
Indebtedness is created, incurred, assumed or guaranteed provides that such
Indebtedness is not senior or superior in right of payment to the Convertible
Subordinated Notes.  Notwithstanding anything to the contrary in the foregoing,
Senior Indebtedness shall not include (a) any Indebtedness of the Company owing
to any of its subsidiaries, (b) Capitalized Lease Obligations, (c) Indebtedness
or other obligations in respect of the Pooling and Servicing Agreement, (d) the
Company's 9.25% Subordinated Debentures due 2017 and its 7% Convertible
Subordinated Debentures due 2012 and (e) with respect to an obligation relating
to the deferred purchase price of property or services, any advances, deposits,
partial or progress payments, payables, unpaid wages and related employee
obligations, trade accounts and accrued liabilities.

     "Stated Maturity" means, with respect to any security or Indebtedness, the
date specified therein as the fixed date on which any principal of such security
or Indebtedness is due and payable, including pursuant to any mandatory
redemption provision (but excluding any provision providing for the repurchase
thereof at the option of the holder thereof).

     A "subsidiary" of any Person means (a) a corporation a majority of whose
Voting Stock is at the time, directly or indirectly, owned by such Person, by
one or more subsidiaries of such Person or by such Person and one or more
subsidiaries of such Person or (b) any other Person (other than a corporation)
in which such Person, one or more subsidiaries of such Person or such Person and
one or more subsidiaries of such Person, directly or indirectly, at the date of
determination thereof, have (i) at least a majority ownership interest or  (ii)
the power to elect or direct the election of the directors or other governing
body of such Person.

     "Time of Determination" means the time and date of the earlier of (i) the
record date or determining stockholders entitled to receive their rights,
warrants or distributions referred to in Section 12.04(b) and (c), or (ii) the
commencement of "ex-dividend" trading on the exchange or market referred to in
the definition of the term "Daily Market Price."

     "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code (S) (S)  77aaa-
77-bbbb) as in effect on the date of execution of this Indenture, except as
provided in Section 9.03.

                                       11

 
     "Trustee" means the party named as such above until a successor replaces it
in accordance with the applicable provisions of this Indenture and thereafter
means the successor.

     "Trust Officer" means the Chairman of the Board, the President or any other
officer or assistant officer of the Trustee assigned by the Trustee to
administer its corporation trust matters.

     "Voting Stock" means, with respect to any Person, securities of any class
or classes of Capital Stock of such Person entitling the holders thereof
(whether at all times or only so long as no senior class of stock has voting
power by reason of any contingency) to vote in the election of members of the
board of directors or other governing body of such Person.

SECTION 1.02  Other Definitions.
              ----------------- 


 
                                              Defined in
                                               Section

                                            
"Asset Sale Offer"...........................    4.05
"Asset Sale Offer Amount"....................    4.05
"Asset Sale Offer Payment Date"..............    4.05
"Asset Sale Offer Termination Date"..........    4.05
"Asset Sale Offer Trigger Date"..............    4.05
"Bankruptcy Law".............................    6.01
"business day"...............................   10.07
"Change of Control Date".....................    4.08
"Change of Control Offer"....................    4.08
"Change of Control Offer Payment Date".......    4.08
"Change of Control Offer Termination Date"...    4.08
"Custodian"..................................    6.01
"Event of Default"...........................    6.01
"Expiration Time"............................   12.04
"Legal Holiday"..............................   10.07
"non-electing share".........................   12.09
"Other Subordinated Notes"...................   11.02
"Paying Agent"...............................    2.03
"Purchased Shares"...........................   12.04
"Registrar"..................................    2.03
"United States Government Obligations".......    8.01


SECTION 1.03   Incorporation by Reference of Trust Indenture Act.
               ------------------------------------------------- 

     Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture.

                                       12

 
     The following TIA terms used in this Indenture have the following meanings:

          "Commission" means the Commission;

          "indenture securities" means the Convertible Subordinated Notes;

          "indenture security holder" means a holder of a Convertible
     Subordinated Note;

          "indenture to be qualified" means this Indenture;

          "indenture trustee" or "institutional trustee" means the Trustee; and

          "obligor" on the Convertible Subordinated Notes means the Company or
     any other obligor on the Convertible Subordinated Notes.

     All other terms in this Indenture that are defined by the TIA, defined by
TIA reference to another statute or defined by Commission rule under the TIA
have the meanings so assigned to them.

SECTION 1.04   Rules of Construction.
               --------------------- 

     Unless the context otherwise requires:

          (1) a term has the meaning assigned to it;

          (2) an accounting term not otherwise defined has the meaning assigned
     to it in accordance with GAAP;

          (3) "or" is not exclusive;

          (4) words in the singular include the plural, and in the plural
     include the singular; and

          (5) the male, female and neuter genders include one another.


                                   ARTICLE 2

                       The Convertible Subordinated Notes

SECTION 2.01   Form and Dating.
               --------------- 

     The Convertible Subordinated Notes and the Trustee's certificate of
authentication relating thereto shall be substantially in the form set forth in
Exhibit A, which is part of this

                                       13

 
Indenture, with such appropriate insertions, omissions, substitutions and other
variations as are required or permitted by this Indenture. The Convertible
Subordinated Notes may have notations, legends or endorsements required by law,
stock exchange rule or usage. The Company shall approve the form of the
Convertible Subordinated Notes and any notation, legend or endorsement on them.
Each Convertible Subordinated Note shall be dated the date of its
authentication.

     The terms and provisions contained in the Convertible Subordinated Notes
shall constitute, and are hereby expressly made, a part of this Indenture and,
to the extent applicable, the Company and the Trustee, by their execution and
delivery of this Indenture, expressly agree to such terms and provisions and to
be bound thereby.

SECTION 2.02  Execution and Authentication.
              ---------------------------- 

     Two Officers shall sign the Convertible Subordinated Notes for the Company
by manual or facsimile signature. The Company's seal shall be reproduced on the
Convertible Subordinated Notes.

     If an Officer whose signature is on a Convertible Subordinated Note no
longer holds that office at the time the Convertible Subordinated Note is
authenticated, the Convertible Subordinated Note shall nevertheless be valid.

     A Convertible Subordinated Note shall not be valid until authenticated by
the manual signature of the Trustee. The signature shall be conclusive evidence
that the Convertible Subordinated Note has been authenticated under this
Indenture.

     Upon a written order of the Company signed by an Officer of the Company,
the Trustee shall authenticate Convertible Subordinated Notes for original issue
up to an aggregate principal amount of $50,000,000 (plus up to $7,500,000
aggregate principal amount of Convertible Subordinated Notes that may be sold by
the Company pursuant to the over-allotment option granted pursuant to the
Underwriting Agreement, dated as of May 12, 1994, between the Company and
Salomon Brothers Inc). The aggregate principal amount of Convertible
Subordinated Notes outstanding at any time may not exceed that amount except as
provided in Section 2.07.

     The Convertible Subordinated Notes shall be issuable only in registered
form without coupons and only in denominations of $1,000 or any integral
multiple thereof.

     The Trustee may appoint an authenticating agent acceptable to the Company
to authenticate Convertible Subordinated Notes. An authenticating agent may
authenticate Convertible Subordinated Notes whenever the Trustee may do so. Each
reference in this Indenture to authentication by the Trustee includes
authentication by such agent. An authenticating agent has same right as an Agent
to deal with the Company or an Affiliate of the Company.

                                       14

 
SECTION 2.03  Registrar and Paying Agent.
              -------------------------- 

     The Company shall maintain or cause to be maintained in the Borough of
Manhattan, New York, New York (the "New York Office"), and in such other
locations as it shall determine, an office or agency: (i) where securities may
be presented for registration of transfer or for exchange ("Registrar"); (ii)
where Convertible Subordinated Notes may be presented for payment ("Paying
Agent"); and (iii) where notices and demand to or upon the Company in respect of
Convertible Subordinated Notes and this Indenture may be served by the holders
of the Convertible Subordinated Notes. The Registrar shall keep a register of
the Convertible Subordinated Notes and of their transfer and exchange. The
Company may appoint one or more co-registrars and one or more additional paying
agents. The term "Paying Agent" includes any additional paying agent. The
Company may change any Paying Agent, Registrar or co-registrar without prior
notice. The Company shall notify the Trustee of the name and address of any
Agent not a party to this Indenture and shall enter into an appropriate agency
agreement with any Registrar, Paying Agent or co-registrar not a party to this
Indenture. The agreement shall implement the provisions of this Indenture that
relate to such Agent. The Company or any of its subsidiaries may act as Paying
Agent, Registrar or co-registrar, except that for purposes of Articles 3 and 8
and Sections 4.05 and 4.08, neither the Company nor any of its subsidiaries
shall act as Paying Agent. If the Company fails to appoint or maintain another
entity as Registrar or Paying Agent, the Trustee shall act as such, and the
Trustee shall initially act as such. The Trustee shall cause the New York Office
to be maintained as long as it acts as Registrar or Paying Agent.

SECTION 2.04  Paying Agent To Hold Money in Trust.
              ----------------------------------- 

     The Company shall require each Paying Agent (other than the Trustee, who
hereby so agrees), to agree in writing that the Paying Agent will hold in trust
for the benefit of holders of the Convertible Subordinated Notes or the Trustee
all money held by the Paying Agent for the payment of principal or interest on
the Convertible Subordinated Notes, and will notify the Trustee of any default
by the Company in respect of making any such payment. While any such default
continues, the Trustee may require a Paying Agent to pay all money held by it to
the Trustee. The Company at any time may require a Paying Agent to pay all money
held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent
(if other than the Company or a subsidiary of the Company) shall have no further
liability for the money. If the Company or a subsidiary of the Company acts as
Paying Agent, it shall segregate and hold in a separate trust fund for the
benefit of the holders of the Convertible Subordinated Notes all money held by
it as Paying Agent.

SECTION 2.05  Holder Lists.
              ------------ 

     The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
holders of Convertible Subordinated Notes. If the Trustee is not the Registrar,
the Company shall furnish to the Trustee at least seven days before each
interest payment date and at such other times as the Trustee may request

                                       15

 
in writing a list in such form and as of such date as the Trustee may reasonably
require of the names and addresses of holders of Convertible Subordinated Notes.

SECTION 2.06  Transfer and Exchange.
              --------------------- 

     Where Convertible Subordinated Notes are presented to the Registrar or a 
co-registrar with a request to register a transfer or to exchange them for an
equal principal amount of Convertible Subordinated Notes for other
denominations, the Registrar shall register the transfer or make the exchange if
its requirements for such transactions are met. To permit registrations of
transfers and exchanges, the Company shall issue and the Trustee shall
authenticate Convertible Subordinated Notes at the Registrar's request. No
service charge shall be made for any registration of transfer or exchange
(except as otherwise expressly permitted herein), but the Company may require
payment of a sum sufficient to cover any transfer tax or similar governmental
charge payable upon exchanges pursuant to Sections 2.10, 3.06 or 9.05.

     The Company shall not be required (i) to issue, register the transfer of or
exchange Convertible Subordinated Notes during a period beginning at the opening
of business 15 days before the day of any selection of Convertible Subordinated
Notes for redemption under Section 3.02 and ending at the close of business on
the day of selection, or (ii) to register the transfer or exchange of any
Convertible Subordinated Note so selected for redemption in whole or in part,
except the unredeemed portion of any Convertible Subordinated Note being
redeemed in part.

SECTION 2.07  Replacement Convertible Subordinated Notes.
              ------------------------------------------ 

     If the holder of a Convertible Subordinated Note claims that the
Convertible Subordinated Note has been lost, destroyed or wrongfully taken, the
Company shall issue and the Trustee shall authenticate a replacement Convertible
Subordinated Note if the Trustee's requirements are met. If required by the
Trustee or the Company as a condition of receiving a replacement Convertible
Subordinated Note, the holder of a Convertible Subordinated Note must provide an
indemnity bond sufficient, in the judgment of both the Company and the Trustee,
to fully protect the Company, the Trustee, any Agent and any authenticating
agent from any loss which any of them may suffer if the Convertible Subordinated
Note is replaced. The Company and the Trustee may charge the relevant holder for
their expenses in replacing any Convertible Subordinated Note.

     Every replacement Convertible Subordinated Note is an additional obligation
of the Company.

SECTION 2.08  Outstanding Convertible Subordinated Notes.
              ------------------------------------------ 

     The Convertible Subordinated Notes outstanding at any time are all the
Convertible Subordinated Notes properly authenticated by the Trustee except for
those cancelled by the Trustee, those delivered to it for cancellation, and
those described in this Section as not outstanding.

                                       16

 
     If a Convertible Subordinated Note is replaced pursuant to Section 2.07, it
ceases to be outstanding unless the Trustee receives proof satisfactory to it
that the replaced Convertible Subordinated Note is held by a bona fide
purchaser.

     If Convertible Subordinated Notes are considered paid under Section 4.01,
they cease to be outstanding and interest on them ceases to accrue.

     A Convertible Subordinated Note does not cease to be outstanding because
the Company or an Affiliate of the Company holds the Convertible Subordinated
Note.

SECTION 2.09  When Treasury Convertible Subordinated Notes Disregarded.
              -------------------------------------------------------- 

     In determining whether the holders of the required principal amount of
Convertible Subordinated Notes have concurred in any direction, waiver or
consent, Convertible Subordinated Notes owned by the Company or an Affiliate of
the Company shall be considered as though they are not outstanding except that
for the purposes of determining whether the Trustee shall be protected in
relying on any such direction, waiver or consent, only Convertible Subordinated
Notes which the Trustee knows are so owned shall be so disregarded.

SECTION 2.10  Temporary Convertible Subordinated Notes.
              ---------------------------------------- 

     Until definitive Convertible Subordinated Notes are ready for delivery, the
Company may prepare and the Trustee shall authenticate temporary Convertible
Subordinated Notes. Temporary Convertible Subordinated Notes shall be
substantially in the form of definitive Convertible Subordinated Notes but may
have variations that the Company considers appropriate for temporary Convertible
Subordinated Notes. If temporary Convertible Subordinated Notes are issued, the
Company will cause definitive Convertible Subordinated Notes to be prepared
without unreasonable delay. After the preparation of definitive Convertible
Subordinated Notes, the temporary Convertible Subordinated Notes shall be
exchangeable for definitive Convertible Subordinated Notes upon surrender of the
temporary Convertible Subordinated Notes at any office or agency of the Company
designated pursuant to Section 2.03 without charge to the holder of the
Convertible Subordinated Note. Upon surrender for cancellation of any one or
more temporary Convertible Subordinated Notes the Company shall execute and the
Trustee shall authenticate and deliver in exchange therefor a like principal
amount of definitive Convertible Subordinated Notes of authorized denominations.
Until so exchanged, the temporary Convertible Subordinated Notes shall in all
respects be entitled to the same benefits under this Indenture as definitive
Convertible Subordinated Notes.

SECTION 2.11  Cancellation.
              ------------ 

     The Company at any time may deliver Convertible Subordinated Notes to the
Trustee for cancellation. The Registrar and Paying Agent shall forward to the
Trustee any Convertible Subordinated Notes surrendered to them for registration
of transfer, exchange or payment. The Trustee and no one else shall cancel
Convertible Subordinated Notes surrendered for registration

                                       17

 
of transfer, exchange, payment, replacement or cancellation and shall dispose of
cancelled Convertible Subordinated Notes as the Company directs, provided that
the Trustee shall not be required to destroy such Convertible Subordinated
Notes. The Company may not issue new Convertible Subordinated Notes to replace
Convertible Subordinated Notes that it has paid or that have been delivered to
the Trustee for cancellation.

SECTION 2.12  Defaulted Interest.
              ------------------ 

     If the Company fails to make a payment of interest on the Convertible
Subordinated Notes, it shall pay such defaulted interest plus, to the extent
lawful, any interest payable on the defaulted interest. It may pay such
defaulted interest, plus any such interest payable on it, to the persons who are
holders of Convertible Subordinated Notes on a subsequent special record date.
The Company shall fix any such record date and payment date. At least 15 days
before any such record date, the Company shall mail to holders of the
Convertible Subordinated Notes a notice that states the record date, payment
date and amount of such interest to be paid.

SECTION 2.13  CUSIP Number.
              ------------ 

     The Company in issuing the Convertible Subordinated Notes may use a "CUSIP"
number, and if so, such CUSIP number shall be included in notices of redemption
or exchange as a convenience to holders of Convertible Subordinated Notes;
provided, however, that any such notice may state that no representation is made
as to the correctness or accuracy of the CUSIP number printed in the notice or
on the Convertible Subordinated Notes and that reliance may be placed only on
the other identification numbers printed on the Convertible Subordinated Notes.
The Company will promptly notify the Trustee of any change in the CUSIP number.


                                   ARTICLE 3

                                   Redemption

SECTION 3.01   Notices to Trustee.
               ------------------ 

     If the Company elects to redeem Convertible Subordinated Notes pursuant to
the optional redemption provisions of paragraph 5 of the Convertible
Subordinated Notes, it shall notify the Trustee of the redemption date and the
principal amount of Convertible Subordinated Notes to be redeemed. The
redemption price shall be the amount determined pursuant to paragraph 5 of the
Convertible Subordinated Notes.

     The Company shall give each notice provided for in this Section at least 50
days before the redemption date (unless a shorter notice period shall be
satisfactory to the Trustee).

                                       18

 
SECTION 3.02  Selection of Convertible Subordinated Notes To Be Redeemed.
              ---------------------------------------------------------- 

     If less than all the Convertible Subordinated Notes are to be redeemed, the
Trustee shall select the Convertible Subordinated Notes to be redeemed by lot or
pro rata or by a method that complies with the requirements of any exchange on
which the Convertible Subordinated Notes are listed that the Trustee considers
fair and appropriate. The Trustee shall make the selection not more than 75 days
and not less than 30 days before the redemption date from Convertible
Subordinated Notes outstanding not previously called for redemption. The Trustee
may select for redemption portions of the principal of Convertible Subordinated
Notes that have a denomination larger than $1,000. Convertible Subordinated
Notes and portions thereof will be redeemed in the amount of $1,000 or integral
multiples of $1,000. Provisions of this Indenture that apply to Convertible
Subordinated Notes called for redemption also apply to portions of Convertible
Subordinated Notes called for redemption. The Trustee will make the selection of
Convertible Subordinated Notes outstanding and not previously called for
redemption. The Trustee shall notify the Company promptly of the Convertible
Subordinated Notes or portions of Convertible Subordinated Notes to be called
for redemption.

SECTION 3.03  Notice of Redemption.
              -------------------- 

     At least 30 days but not more than 60 days before a redemption date, the
Company shall mail a notice of redemption to each holder whose Convertible
Subordinated Notes are to be redeemed.

     The notice shall identify the Convertible Subordinated Notes to be redeemed
and shall state:

          (1) the redemption date;

          (2) the redemption price;

          (3) if any Convertible Subordinated Note is being redeemed in part,
     the portion of the principal amount of such Convertible Subordinated Note
     to be redeemed and that, after the redemption date, upon surrender of such
     Convertible Subordinated Note, a new Convertible Subordinated Note or
     Convertible Subordinated Notes in principal amount equal to the unredeemed
     portion will be issued;

          (4) that Convertible Subordinated Notes called for redemption must be
     surrendered to the Paying Agent to collect the redemption price;

          (5) that interest on Convertible Subordinated Notes called for
     redemption and for which funds have been set apart for payment, ceases to
     accrue on and after the redemption date (unless the Company defaults in the
     payment of the redemption price);

                                       19

 
          (6) the paragraph of the Convertible Subordinated Notes pursuant to
     which the Convertible Subordinated Notes are being redeemed;

          (7) the aggregate principal amount of Convertible Subordinated Notes
     that are being redeemed;

          (8) the CUSIP number of the Convertible Subordinated Notes (provided
     that the disclaimer permitted by Section 2.13 may be made);

          (9) the name and address of the Paying Agent; and

          (10) that Convertible Subordinated Notes called for redemption may be
     converted at any time prior to the close of business on the redemption date
     and if not converted prior to the close of business on such date, the right
     of conversion will be lost.

     At the Company's request, the Trustee shall give notice of redemption in
the Company's name and at its expense.

SECTION 3.04   Effect of Notice of Redemption.
               ------------------------------ 

     Once notice of redemption is mailed, Convertible Subordinated Notes called
for redemption become due and payable on the redemption date at the price set
forth in the Convertible Subordinated Note.

SECTION 3.05   Deposit of Redemption Price.
               --------------------------- 

     On or before the redemption date, the Company shall deposit with the
Trustee or with the Paying Agent money in immediately available funds sufficient
to pay the redemption price of and accrued interest on all Convertible
Subordinated Notes to be redeemed on that date.  The Trustee or the Paying Agent
shall return to the Company any money not required for that purpose.

SECTION 3.06   Convertible Subordinated Notes Redeemed in Part.
               ----------------------------------------------- 

     Upon surrender of a Convertible Subordinated Note that is redeemed in part,
the Company shall issue and the Trustee shall authenticate for the holder of a
Convertible Subordinated Note at the expense of the Company a new Convertible
Subordinated Note equal in principal amount to the unredeemed portion of the
Convertible Subordinated Note surrendered.


                                   ARTICLE 4

                                   Covenants

                                       20

 
SECTION 4.01   Payment of Convertible Subordinated Notes.
               ----------------------------------------- 

     The Company shall pay the principal of and interest on the Convertible
Subordinated Notes on the dates and in the manner provided in the Convertible
Subordinated Notes.  Principal and interest shall be considered paid on the date
due if the Trustee or Paying Agent (other than the Company or a subsidiary of
the Company) holds as of 1:00 P.M.  Eastern Time on that date immediately
available funds designated for and sufficient to pay all principal and interest
then due, provided, however, that money held by the Agent for the benefit of
holders of Senior Indebtedness pursuant to the provisions of Article 11 hereof
or the payment of which to the holders of the Convertible Subordinated Notes is
prohibited by Article 11 shall not be considered to be designated for the
payment of any principle of or interest on the Convertible Subordinated Notes
within the meaning of this Section 4.01.

     To the extent lawful, the Company shall pay interest (including post-
petition interest in any proceeding under any Bankruptcy Law) on (i) overdue
principal, at the rate borne by Convertible Subordinated Notes, compounded
semiannually; and (ii) overdue installments of interest (without regard to any
applicable grace period) at the same rate, compounded semiannually.

SECTION 4.02   Commission Reports.
               ------------------ 

     So long as any Convertible Subordinated Note is outstanding, the Company
shall file with the Commission and, within 15 days after it files them with the
Commission, file with the Trustee and thereafter mail promptly or cause the
Trustee to mail promptly to the holders of Convertible Subordinated Notes at
their addresses as set forth in the register of the Convertible Subordinated
Notes copies of the annual reports and of the information, documents and other
reports which the Company is required to file with the Commission pursuant to
Section 13 or 15(d) of the Exchange Act or which the Company would be required
to file with the Commission if the Company then had a class of securities
registered under the Exchange Act.  In addition, the Company shall cause its
annual report to stockholders and any quarterly or other financial reports
furnished to its stockholders generally to be filed with the Trustee, no later
than the date such materials are mailed or made available to the Company's
stockholders, and thereafter mailed promptly to the holders of Convertible
Subordinated Notes at their addresses as set forth in the register of
Convertible Subordinated Notes.

SECTION 4.03   Compliance Certificate.
               ---------------------- 

     The Company shall deliver to the Trustee, within 60 days after the end of
the first three fiscal quarters and within 120 days after the end of each fiscal
year of the Company, an Officers' Certificate stating that a review of the
activities of the Company and its subsidiaries during the preceding fiscal
period has been made under the supervision of the signing Officers with a view
to determining whether the Company has fully performed its obligations under
this Indenture and further stating, as to each such Officer signing such
certificate, that to the best of his or her knowledge the Company has kept,
observed, performed and fulfilled each and every

                                       21

 
covenant contained in this Indenture and is not in default in the performance or
observance of any of the terms and conditions hereof (or, if any Default or
Event of Default shall have occurred, describing all such Defaults or Events of
Default of which he or she may have knowledge) and that to the best of his or
her knowledge no event has occurred and remains in existence by reason of which
payments on account of the principal of or interest on the Convertible
Subordinated Notes are prohibited.

     The Company shall, so long as any of the Convertible Subordinated Notes are
outstanding, deliver to the Trustee, forthwith upon becoming aware of any
Default, Event of Default or default in the performance of any term or condition
in this Indenture, without regard to any period of grace or requirement of
notice provided hereunder, an Officers' Certificate specifying such Default,
Event of Default or default.

SECTION 4.04   Maintenance of Office or Agency.
               ------------------------------- 

     The Company shall maintain or cause to be maintained the office or agency
required under Section 2.03.  The Company shall give prompt written notice to
the Trustee of the location, and any change in the location, of such office or
agency not maintained by the Trustee.

     The Company may also from time to time designate one or more other offices
or agencies where the Convertible Subordinated Notes may be presented or
surrendered for any or all such purposes and may from time to time rescind such
designation; provided, however, that no such designation or rescission shall in
any manner relieve the Company of its obligation to maintain or cause to be
maintained an office or agency in the City of New York for such purpose.

SECTION 4.05   Limitation on Sale of Assets.
               ---------------------------- 

     The Company will not, and will not permit any of its subsidiaries to,
consummate any Asset Sale unless such Asset Sale is for at least Fair Market
Value and at least 80% of the consideration therefrom received by the Company or
such subsidiary is in the form of cash or Cash Equivalents.

     Following any Asset Sale, an amount equal to the Net Cash Proceeds of such
Asset Sale shall be applied by the Company or such subsidiary within 365 days of
the date of the Asset Sale, at its election, to either: (a) the payment of
Senior Indebtedness; provided, however, any Net Cash Proceeds which are applied
to reduce Indebtedness under the Revolving Credit Agreement shall result in a
permanent reduction of the borrowing availability thereunder; (b) make any
Permitted Program Investment or any other investment in capital assets usable in
the Company's or its subsidiaries' lines of business or in an asset or business
in the same line of business as the Company; or (c) a combination of payment and
investment permitted by the foregoing clauses (a) and (b).  On the earlier of
(A) the 366th day after the date of an Asset Sale or (B) such date as the Board
of Directors of the Company or of such subsidiary determines (as

                                       22

 
evidenced by a written resolution of said Board of Directors) not to apply an
amount equal to the Net Cash Proceeds relating to such Asset Sale as set forth
in the immediately preceding sentence (each of (A) and (B), an "Asset Sale Offer
Trigger Date"), the Company or such subsidiary shall be obligated to apply an
amount equal to aggregate amount of Net Cash Proceeds which have not been
applied on or before such Asset Sale Offer Trigger Date as permitted by the
foregoing clauses (a), (b) and (c) of the immediately preceding sentence (each
an "Asset Sale Offer Amount") to make an offer to purchase for cash (the "Asset
Sale Offer") from all holders of Convertible Subordinated Notes on a pro rata
basis that amount of Convertible Subordinated Notes equal to the Asset Sale
Offer Amount at a price equal to 100% of the principal amount of the Convertible
Subordinated Notes to be repurchased, plus accrued and unpaid interest thereon
to the date of repurchase.  Notwithstanding the foregoing, if an Asset Sale
Offer Amount is less than $10 million, the application of such Asset Sale Offer
Amount to an Asset Sale Offer may be deferred until such time as such Asset Sale
Offer Amount plus the aggregate amount of all Asset Sale Offer Amounts arising
subsequent to such Asset Sale Offer Trigger Date from all Asset Sales by the
Company and its subsidiaries aggregates at least $10 million, at which time the
Company or such subsidiary shall apply all Asset Sale Offer Amounts that have
been so deferred to make an Asset Sale Offer (the first date the aggregate of
all such deferred Asset Sale Offer Amounts is equal to $10 million or more shall
be deemed to be an "Asset Sale Offer Trigger Date").

     In the event of the transfer of substantially all (but not all) of the
property and assets of the Company as an entirety to a Person in a transaction
permitted under Section 5.01, the successor corporation shall be deemed to have
sold the properties and assets of the Company not so transferred for purposes of
this covenant, and shall comply with the provisions of this covenant with
respect to such deemed sale as if it were an Asset Sale.

     Each Asset Sale Offer shall be mailed to the holders of the Convertible
Subordinated Notes at the addresses shown on the register of holders maintained
by the Registrar with a copy to the Trustee and the Paying Agent, within 10 days
following the applicable Asset Sale Offer Trigger Date, and shall comply with
each of the procedures for notice set forth below.  Each Asset Sale Offer shall
remain open until a specified date (the "Asset Sale Offer Termination Date")
which is at least 20 business days from the date such Asset Sale Offer is
mailed.  During the period specified in the Asset Sale Offer, holders of
Convertible Subordinated Notes may elect to tender their Convertible
Subordinated Notes in whole or in part in integral multiples of $1,000 in
exchange for cash.  Payment shall be made by the Company (or applicable
subsidiary) in respect of Convertible Subordinated Notes properly tendered
pursuant to this Section on a specified business day (the "Asset Sale Offer
Payment Date") which shall be no earlier than three business days after the
Asset Sale Offer Termination Date and no later then 60 days after such
applicable Asset Sale Offer Trigger Date.  To the extent holders of Convertible
Subordinated Notes properly tender Convertible Subordinated Notes in an amount
exceeding the Asset Sale Offer Amount, Convertible Subordinated Notes of
tendering holders will be repurchased on a pro rata basis (based on amounts
tendered).

                                       23

 
     The notice, which shall govern the terms of the Asset Sale Offer, shall
include such disclosures as are required by law and shall state:

          (a) that the Asset Sale Offer is being made pursuant to this Section
     4.05;

          (b) the purchase price (including the amount of the accrued interest,
     if any) for each Convertible Subordinated Note, the Asset Sale Offer
     Termination Date and the Asset Sale Offer Payment Date;

          (c) that any Convertible Subordinated Note not tendered or accepted
     for payment will continue to accrue interest in accordance with the terms
     thereof;

          (d) that, unless the Company defaults on making the payment, any
     Convertible Subordinated Note accepted for payment pursuant to the Asset
     Sale Offer shall cease to accrue interest after the Asset Sale Offer
     Payment Date;

          (e) that holders electing to have Convertible Subordinated Notes
     purchased pursuant to an Asset Sale Offer will be required to surrender
     their Convertible Subordinated Notes to the Paying Agent at the address
     specified in the notice prior to 5:00 p.m., New York City time, on the
     Asset Sale Offer Termination Date and must complete any form letter of
     transmittal proposed by the Company and acceptable to the Trustee and the
     Paying Agent;

          (f) that holders of Convertible Subordinated Notes will be entitled to
     withdraw their election if the Paying Agent receives, not later than  5:00
     p.m., New York City time, on the Asset Sale Offer Termination Date, a
     tested telex, facsimile transmission or letter setting forth the name of
     the holder, the principal amount of Convertible Subordinated Notes the
     holder delivered for purchase, the Convertible Subordinated Note
     certificate number (if any) and a statement that such holder is withdrawing
     his election to have such Convertible Subordinated Notes purchased;

          (g) that if Convertible Subordinated Notes in a principal amount in
     excess of the Asset Sale Offer Amount are tendered pursuant to the Asset
     Sale Offer, the Company shall purchase Convertible Subordinated Notes on a
     pro rata basis among the Convertible Subordinated Notes tendered (with such
     adjustments as may be deemed appropriate by the Company so that only
     Convertible Subordinated Notes in denominations of $1,000 or integral
     multiples of $1,000 shall be acquired);

          (h) that holders whose Convertible Subordinated Notes are purchased
     only in part will be issued new Convertible Subordinated Notes equal in
     principal amount to the unpurchased portion of the Convertible Subordinated
     Notes surrendered; and

          (i) the instructions that holders must follow in order to tender their
     Convertible Subordinated Notes.

                                       24

 
     On the Asset Sale Offer Termination Date, the Company shall (i) accept for
payment Convertible Subordinated Notes or portions thereof tendered pursuant to
the Asset Sale Offer, (ii) deposit with the Paying Agent money sufficient to pay
the purchase price of all Convertible Subordinated Notes or portions thereof so
tendered and accepted and (iii) deliver to the Trustee the Convertible
Subordinated Notes so accepted together with an Officers' Certificate setting
forth the Convertible Subordinated Notes or portions thereof tendered to and
accepted for payment by the Company.  On the Asset Sale Offer Payment Date, the
Paying Agent shall mail or deliver to the holders of Convertible Subordinated
Notes so accepted payment in an amount equal to the purchase price, and the
Trustee shall promptly authenticate and mail or deliver to such holders a new
Convertible Subordinated Note equal in principal amount to any unpurchased
portion of the Convertible Subordinated Note surrendered.  Any Convertible
Subordinated Notes not so accepted shall be promptly mailed or delivered by the
Company to the holder thereof.

     If an offer is made to repurchase the Convertible Subordinated Notes
pursuant to an Asset Sale Offer, the Company will and will cause its
subsidiaries to comply with all tender offer rules under state and Federal
securities laws, including, but not limited to, Section 14(e) under the Exchange
Act and Rule 14e-1 thereunder, to the extent applicable to such offer.  To the
extent that the provisions of any securities laws or regulations conflict with
provisions of this Section 4.05, the Company shall comply with the applicable
securities laws and regulations and shall not be deemed to have breached its
obligations under this Section 4.05 by virtue thereof.

SECTION 4.06   Continued Existence.
               ------------------- 

     Subject to Article 5, the Company shall do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate existence.

SECTION 4.07   Taxes.
               ----- 

     The Company shall pay prior to delinquency all taxes, assessments and
governmental levies, except as contested in good faith and by appropriate
proceedings or where the failure to do so (together with all other such
failures) would not have a material adverse effect on the financial condition or
results of operations of the Company and its subsidiaries, taken as a whole.

SECTION 4.08   Change of Control.
               ----------------- 

     Following a Change of Control (the date of each such occurrence being the
"Change of Control Date"), the Company shall notify the holders of Convertible
Subordinated Notes in writing of such occurrence and shall make an offer (the
"Change of Control Offer") to purchase all Convertible Subordinated Notes then
outstanding at a purchase price equal to 101% of the principal amount thereof,
plus accrued and unpaid interest, if any, to the "Change of Control Offer
Payment Date" (as defined below).

                                       25

 
     Notice of a Change of Control shall be mailed by or at the direction of the
Company to the holders of Convertible Subordinated Notes as shown on the
register of such holders maintained by the Registrar not less than 15 days nor
more than 30 days after the applicable Change of Control Date at the addresses
as shown on the register of holders maintained by the Registrar, with a copy to
the Trustee and the Paying Agent.  The Change of Control Offer shall remain open
until a specified date (the "Change of Control Offer Termination Date") which is
at least 20 business days from the date such notice is mailed.  During the
period specified in such notice, holders of Convertible Subordinated Notes may
elect to tender their Convertible Subordinated Notes in whole or in part in
integral multiples of $1,000 in exchange for cash.  Payment shall be made by the
Company in respect of Convertible Subordinated Notes properly tendered pursuant
to this Section on a specified business day (the "Change of Control Offer
Payment Date") which shall be no earlier than three business days after the
applicable Change of Control Offer Termination Date and no later than 60 days
after the applicable Change of Control Date.

The notice, which shall govern the terms of the Change of Control Offer, shall
include such disclosures as are required by law and shall state:

          (a) that a Change of Control Offer is being made pursuant to this
     Section 4.08 and that all Convertible Subordinated Notes will be accepted
     for payment;

          (b) the purchase price (including the amount of accrued interest, if
     any) for each Convertible Subordinated Note, the Change of Control Offer
     Termination Date and the Change of Control Offer Payment Date;

          (c) that any Convertible Subordinated Note not accepted for payment
     will continue to accrue interest in accordance with the terms thereof;

          (d) that, unless the Company defaults on making the payment, any
     Convertible Subordinated Note accepted for payment pursuant to the Change
     of Control Offer shall cease to accrue interest after the Change of Control
     Offer Payment Date;

          (e) that holders electing to have Convertible Subordinated Notes
     purchased pursuant to a Change of Control Offer will be required to
     surrender their Convertible Subordinated Notes to the Paying Agent at the
     address specified in the notice prior to 5:00 p.m., New York City time, on
     the Change of Control Offer Termination Date and must complete any form
     letter of transmittal proposed by the Company and acceptable to the Trustee
     and the Paying Agent;

          (f) that holders of Convertible Subordinated Notes will be entitled to
     withdraw their election if the Paying Agent receives, not later than  5:00
     p.m., New York City time, on the Change of Control Offer Termination Date,
     a tested telex, facsimile transmission or letter setting forth the name of
     the holder, the principal amount of Convertible Subordinated Notes the
     holder delivered for purchase, the Convertible

                                       26

 
     Subordinated Note certificate number (if any) and a statement that such
     holder is withdrawing his election to have such Convertible Subordinated
     Notes purchased;

          (g) that holders whose Convertible Subordinated Notes are purchased
     only in part will be issued Convertible Subordinated Notes equal in
     principal amount to the unpurchased portion of the Convertible Subordinated
     Notes surrendered;

          (h) the instructions that holders must follow in order to tender their
     Convertible Subordinated Notes; and

          (i) the circumstances and relevant facts regarding such Change of
     Control (including, but not limited to, information with respect to pro
     forma historical financial information after giving effect to such Change
     of Control, information regarding the Persons acquiring control and such
     Persons' business plans going forward).

     On the Change of Control Offer Termination the Company shall  (i) accept
for payment Convertible Subordinated Notes or portions thereof tendered pursuant
to the Change of Control Offer, (ii) deposit with the Paying Agent money
sufficient to pay the purchase price of all Convertible Subordinated Notes or
portions thereof so tendered and accepted and (iii) deliver to the Trustee the
Convertible Subordinated Notes so accepted together with an Officers'
Certificate setting forth the Convertible Subordinated Notes or portions thereof
tendered to and accepted for payment by the Company.  On the Change of Control
Payment Date, the Paying Agent shall mail or deliver to the holders of
Convertible Subordinated Notes so accepted payment in an amount equal to the
purchase price, and the Trustee shall promptly authenticate and mail or deliver
to such holders a new Convertible Subordinated Note equal in principal amount to
any unpurchased portion of the Convertible Subordinated Note surrendered.  Any
Convertible Subordinated Notes not so accepted shall be promptly mailed or
delivered by the Company to the holder thereof.

     In addition, in the event of any Change of Control, the Company shall not,
and shall not permit any of its subsidiaries to, purchase, redeem or otherwise
acquire any Indebtedness subordinated or junior to the Convertible Subordinated
Notes pursuant to any analogous provision relating to such Indebtedness on or
prior to the payment in full in cash or Cash Equivalents of all Convertible
Subordinated Notes, together with accrued and unpaid interest thereon with
respect to which the Change of Control Offer was accepted.

     If an offer is made to redeem Convertible Subordinated Notes as a result of
a Change of Control, the Company will be required to comply with all tender
offer rules under state and Federal securities laws, including, but not limited
to, Section 14(e) under the Exchange Act and Rule 14e-1 thereunder, to the
extent applicable to such offer.

                                       27

 
SECTION 4.09   Appointments to Fill Vacancies in Trustee's Office.
               -------------------------------------------------- 

     The Company, whenever necessary to avoid or fill a vacancy in the office of
Trustee, will appoint, in the manner provided in Section 7.08, a Trustee, so
that there shall at all times be a Trustee hereunder.

SECTION 4.10   Further Instruments and Acts.
               ---------------------------- 

     Upon request of the Trustee, the Company will execute and deliver such
further instruments and do such further acts as may be reasonably necessary or
proper to carry out more effectively the purpose of this Indenture.

SECTION 4.11   Stay, Extension and Usury Laws.
               ------------------------------ 

     The Company covenants (to the extent that it may lawfully do so) that it
shall not at any time insist upon, plead or in any manner whatsoever claim or
take the benefit or advantage of, any stay, extension or usury law wherever
enacted, now or at any time hereafter enforced, that may affect the Company's
obligation to pay the Convertible Subordinated Notes; and the Company (to the
extent that it may lawfully do so) hereby expressly waives all benefit or
advantage of any such law insofar as such law applies to the Convertible
Subordinated Notes, and covenants that it shall not, by resort to any such law,
hinder, delay or impede the execution of any power herein granted to the
Trustee, but will suffer and permit the execution of every such power as though
no such law has been enacted.

SECTION 4.12   Investment Company Act.
               ---------------------- 

     The Company, as of the Issue Date, is not and shall not become an
investment company subject to registration under the Investment Company Act of
1940, as amended.


                                   ARTICLE 5

                                   Successors

SECTION 5.01   When the Company May Merge, Etc.
               ------------------------------- 

The Company will not, in a single transaction or series of related transactions,
consolidate or merge with or into, or sell, assign, transfer, lease, convey or
otherwise dispose of all or substantially all of its assets to, any Person or
adopt a Plan of Liquidation unless:

          (a) either (i) the Company shall be the surviving or continuing
     corporation or (ii) the Person (if other than the Company) formed by such
     consolidation or into which the Company is merged or the Person which
     acquires by conveyance, transfer or lease the properties and assets of the
     Company substantially as an entirety or in the case of a Plan

                                       28

 
     of Liquidation, the Person to which all or substantially all of the assets
     of the Company have been transferred (1) shall be a corporation organized
     and validly existing under the laws of the United States or any State
     thereof or the District of Columbia and (2) shall expressly assume, by
     supplemental indenture, executed and delivered to the Trustee, the due and
     punctual payment of the principal of, and premium, if any, and interest on
     all of the Convertible Subordinated Notes and the performance of every
     covenant of the Convertible Subordinated Notes and this Indenture on the
     part of the Company to be performed or observed;

          (b) immediately after giving effect to such transaction and any
     assumption contemplated by clause (a)(ii)(2) above (including giving effect
     to any Indebtedness and Acquired Indebtedness incurred or anticipated to be
     incurred in connection with or in respect of such transaction), the Company
     (in the case of clause (i) of the foregoing clause (a)) or such Person (in
     the case of clause (ii) thereof) shall have a Consolidated Net Worth
     (immediately after the transaction but prior to any purchase accounting
     adjustments relating to such transaction) equal to or greater than the
     Consolidated Net Worth of the Company immediately prior to such
     transaction;

          (c) immediately before and after giving effect to such transaction and
     any assumption contemplated by clause (a)(ii)(2) above (including giving
     effect to any Indebtedness and Acquired Indebtedness incurred in connection
     with or in respect of the transaction) no Default and no Event of Default
     shall have occurred and be continuing; and

          (d) the Company or such Person shall have delivered to the Trustee (i)
     an Officers' Certificate and an Opinion of Counsel (which counsel may be
     in-house counsel of the Company), each stating that such consolidation,
     merger, conveyance, transfer or lease or Plan of Liquidation and, if a
     supplemental indenture is required in connection with such transaction,
     such supplemental indenture, comply with this provision of this Indenture
     and that all conditions precedent in this Indenture relating to such
     transaction have been satisfied and (ii) a certificate from the Company's
     independent certified public accountants stating that the Company has made
     the calculations required by clause (b) above in accordance with the terms
     of this Indenture.

     For purposes of this Section 5.01, the transfer (by lease, assignment, sale
or otherwise, in a single transaction or series of transactions) of all or
substantially all of the properties or assets of one or more subsidiaries of the
Company, the Capital Stock of which constitutes all or substantially all of the
properties and assets of the Company, shall be deemed to be the transfer of all
or substantially all of the properties and assets of the Company.

SECTION 5.02   Successor Corporation Substituted.
               --------------------------------- 

     Upon any such consolidation, merger, conveyance, lease or transfer in
accordance with Section 5.01, the successor Person formed by such consolidation
or into which the Company is

                                       29

 
merged or to which such conveyance, lease or transfer is made will succeed to,
and be substituted for, and may exercise every right and power of, the Company
under this Indenture with the same effect as if such successor had been named as
the Company therein, and thereafter (except in the case of a sale, assignment,
transfer, lease, conveyance or other disposition) the predecessor corporation
will be relieved of all further obligations and covenants under this Indenture
and the Convertible Subordinated Notes.

SECTION 5.03   Purchase Option on Change of Control.
               ------------------------------------ 

     This Article 5 does not affect the obligations of the Company (including
without limitation any successor to the Company) under Section 4.08.


                                   ARTICLE 6

                             Defaults and Remedies

SECTION 6.01   Events of Default.
               ----------------- 

     An "Event of Default" with respect to any Convertible Subordinated Notes
occurs if:

          (a) the Company defaults in the payment of principal of, or premium,
     if any, on the Convertible Subordinated Notes when due at maturity, upon
     repurchase, upon acceleration or otherwise, including, without limitation,
     failure of the Company to repurchase the Convertible Subordinated Notes on
     the date required pursuant to Section 4.05 or following a Change of Control
     or failure to make any optional redemption payment when due; or

          (b) the Company defaults in the payment of any installment of interest
     on the Convertible Subordinated Notes when due (including any interest
     payable in connection with any optional redemption payment) and continuance
     of such default for more than 30 days; or

          (c) the Company fails to observe, perform or comply with any of the
     provisions described in Sections 4.05, 4.08 and 5.01, and the failure to
     remedy such failure prior to the receipt of written notice from the trustee
     or the holders of at least 25% in aggregate principal amount of the then
     outstanding Convertible Subordinated Notes; or

          (d) the Company defaults (other than a default set forth in clauses
     (a), (b) and (c) above) in the performance of, or breach of, any other
     covenant or warranty of the Company set forth in this Indenture or the
     Convertible Subordinated Notes and fails to remedy such default or breach
     within a period of 45 days after the receipt of written notice from the
     Trustee or the holders of at least 25% in aggregate principal amount of the
     then outstanding Convertible Subordinated Notes; or

                                       30

 
          (e) any Indebtedness (other than the Convertible Subordinated Notes)
     of the Company or of any subsidiary, whether such Indebtedness exists on
     the Issue Date or shall be incurred thereafter, having, individually or in
     the aggregate, an outstanding principal amount of $15 million or more,
     either (i) is declared due and payable prior to its stated maturity or (ii)
     is not paid upon the final maturity of such Indebtedness; or

          (f) a court of competent jurisdiction enters one or more judgments or
     orders against the Company or any subsidiary of the Company or any of their
     respective property or assets in an aggregate amount in excess of $15
     million and they are not covered by insurance written by third parties,
     which judgments or orders have not been vacated, discharged, satisfied or
     stayed pending appeal within 60 days from the entry thereof; or

          (g) the Company or any Material Subsidiary, pursuant to or within the
     meaning of any Bankruptcy Law:

               (i) commences a voluntary case,

               (ii) consents to the entry of an order for relief against it in
          an involuntary case,

               (iii) consents to the appointment of a Custodian of it or for all
          or substantially all of its property, or

               (iv) makes a general assignment for the benefit of its creditors;
          or

          (h) a court of competent jurisdiction enters a judgment, order or
     decree under any Bankruptcy Law that:

               (i) is for relief against the Company or any Material Subsidiary
          in an involuntary case,

               (ii) appoints a Custodian of the Company or any Material
          Subsidiary for all or substantially all of its property, or

               (iii) orders the liquidation of the Company or any Material
          Subsidiary, and the order or decree remains unstayed and in effect for
          60 days.

     The term "Bankruptcy Law" means title 11, U.S.  Code or any similar Federal
or state law for the relief of debtors.  The term "Custodian" means any
receiver, trustee, assignee, liquidator or similar official under any Bankruptcy
Law.

                                       31

 
SECTION 6.02   Acceleration.
               ------------ 

     If an Event of Default (other than an Event of Default specified in clauses
(g) and (h) of Section 6.01) occurs and is continuing, then and in every such
case the Trustee, by written notice to the Company (with a copy to the Bank
Agent, each of the holders of the Company's 9.33% Senior Notes and its 9.35%
Senior Notes and any other Representatives of Designated Senior Indebtedness),
or the holders of at least 25% in aggregate principal amount of the then
outstanding Convertible Subordinated Notes, by written notice to the Company and
the Trustee (with a copy to the Bank Agent, each of the holders of the Company's
9.33% Senior Notes and its 9.35% Senior Notes and any other Representatives of
Designated Senior Indebtedness), may declare the unpaid principal of and accrued
interest on all the Convertible Subordinated Notes to be due and payable,
provided, however that failure to provide a copy of such notice to any party
other than the Company and the Trustee shall have no effect on any such
declaration.  Upon such declaration such principal amount, premium, if any, and
accrued and unpaid interest shall become immediately due and payable,
notwithstanding anything contained in this Indenture or the Convertible
Subordinated Notes to the contrary but subject to the provisions of Article 11
hereof; and provided further, that so long as any Designated Senior Indebtedness
is outstanding, any such declaration shall not be effective until the earlier of
(a) five business days after the delivery of such notice to the Company or (b)
the acceleration of any Designated Senior Indebtedness.  If any Event of Default
with respect to the Company specified in clauses (g) or (h) of Section 6.01
occurs, all unpaid principal of and premium, if any, and accrued and unpaid
interest on the Convertible Subordinated Notes then outstanding shall become
automatically due and payable subject to the provisions of Article 11 hereof,
without any declaration or other act on the part of the Trustee or any holder of
Convertible Subordinated Notes.

     The holders of a majority in principal amount of the then outstanding
Convertible Subordinated Notes by notice to the Trustee may rescind an
acceleration of the Convertible Subordinated Notes and its consequences if all
existing Events of Default (other than nonpayment of principal of or premium, if
any, and interest on the Convertible Subordinated Notes which has become due
solely by virtue of such acceleration) have been cured or waived and if the
rescission would not conflict with any judgment or decree of any court of
competent jurisdiction.  No such rescission shall affect any subsequent Default
or Event of Default or impair any right consequent thereto.

SECTION 6.03   Other Remedies.
               -------------- 

     If an Event of Default occurs and is continuing, the Trustee may pursue any
available remedy by proceeding at law or in equity to collect the payment of
principal of or interest on the Convertible Subordinated Notes or to enforce the
performance of any provision of the Convertible Subordinated Notes or this
Indenture.  The Trustee may maintain a proceeding even if it does not possess
any of the Convertible Subordinated Notes or does not produce any of them in the
proceeding.  A delay or omission by the Trustee or any holder of a Convertible
Subordinated Note in exercising any right or remedy accruing upon an Event of
Default shall

                                       32

 
not impair the right or remedy or constitute a waiver of or acquiescence in the
Event of Default.  All remedies are cumulative to the extent permitted by law.

SECTION 6.04   Waiver of Past Defaults.
               ----------------------- 

     The holders of a majority in aggregate principal amount of the Convertible
Subordinated Notes then outstanding may, on behalf of the holders of all the
Convertible Subordinated Notes waive an existing Default or Event of Default and
its consequences, except a Default or Event of Default in the payment of the
principal of or interest on the Convertible Subordinated Notes (other than the
non-payment of principle of and premium, if any, and interest on the Convertible
Subordinated Notes which has become due solely by virtue of an acceleration
which has been duly rescinded as provided above), or in respect of a covenant or
provision of this Indenture which cannot be modified or amended without the
consent of all holders of convertible Subordinated Notes.  When a Default is
waived, it is cured and stops continuing.  No waiver shall extend to any
subsequent or other Default or impair any right consequent thereon.

SECTION 6.05   Control by Majority.
               ------------------- 

     The holders of a majority in principal amount of the then outstanding
Convertible Subordinated Notes may direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or exercising
any trust or power conferred on it.  However, the Trustee may refuse to follow
any direction that conflicts with law or this Indenture, that the Trustee
determines may be unduly prejudicial to the rights of other holders of
Convertible Subordinated Notes or that may involve the Trustee in personal
liability; provided, that the Trustee may take any other action the Trustee
deems proper that is not inconsistent with such directions.

SECTION 6.06   Limitation on Suits.
               ------------------- 

A holder of a Convertible Subordinated Note may not pursue any remedy with
respect to this Indenture or the Convertible Subordinated Notes unless:

          (1) the holder gives to the Trustee notice of a continuing Event of
     Default;

          (2) the holders of at least 25% in principal amount of the then
     outstanding Convertible Subordinated Notes make a request to the Trustee to
     pursue the remedy;

          (3) such holder or holders offer and, if requested, provide to the
     Trustee indemnity satisfactory to the Trustee against any loss, liability
     or expense;

          (4) the Trustee does not comply with the request within 60 days after
     receipt of the request and the offer and, if requested, the provision of
     indemnity; and

                                       33

 
          (5) during such 60-day period the holders of a majority in principal
     amount of the then outstanding Convertible Subordinated Notes do not give
     the Trustee a direction inconsistent with the request.

     A holder of a Convertible Subordinated Note may not use this Indenture to
prejudice the rights of another holder or to obtain a preference or priority
over another holder.

SECTION 6.07   Rights of Holders To Receive Payment.
               ------------------------------------ 

     Subject to the provisions of Article 11 hereof, notwithstanding any other
provision of this Indenture, the right of any holder of a Convertible
Subordinated Note to receive payment of principal and interest on the
Convertible Subordinated Note, on or after the respective due dates expressed in
the Convertible Subordinated Note, or to bring suit for the enforcement of any
such payment on or after such respective dates, and such rights shall not be
impaired or affected without the consent of the holder of a Convertible
Subordinated Note.

SECTION 6.08   Collection Suit by Trustee.
               -------------------------- 

     If an Event of Default specified in Section 6.01(a) or (b) occurs and is
continuing, the Trustee may recover judgment in its own name and as trustee of
an express trust against the Company for the whole amount of principal and
interest remaining unpaid on the Convertible Subordinated Notes and interest on
overdue principal and interest and such further amount as shall be sufficient to
cover the costs and, to the extent lawful, expenses of collection, including the
reasonable compensation, expenses, disbursements and advances of the Trustee,
its agents and counsel.

SECTION 6.09   Trustee May File Proofs of Claim.
               -------------------------------- 

     The Trustee may file such proofs of claim and other papers or documents as
may be necessary or advisable in order to have the claims of the Trustee and the
holders of Convertible Subordinated Notes allowed in any judicial proceedings
relative to the Company, its creditors or its property.  Nothing contained
herein shall be deemed to authorize the Trustee to authorize or consent to or
accept or adopt on behalf of any holder of a Convertible Subordinated Note any
plan of reorganization, arrangement, adjustment or composition affecting the
Convertible Subordinated Notes or the rights of any holder thereof, or to
authorize the Trustee to vote in respect of the claim of any holder in any such
proceeding.

SECTION 6.10   Priorities.
               ---------- 

     If the Trustee collects any money pursuant to this Article, it shall pay
out the money in the following order:

                                       34

 
          First: to the Trustee for amounts due under Section 7.07, including
     payment of all compensation, expenses and liabilities incurred, and all
     advances made, by the Trustee, and the costs and expenses of collection;

          Second: to holders of Senior Indebtedness to the extent required by
     Article 11;

          Third: to holders of Convertible Subordinated Notes for amounts due
     and unpaid on the Convertible Subordinated Notes for principal and
     interest, ratably, without preference or priority of any kind, according to
     the amounts due and payable on the Convertible Subordinated Notes for
     principal and interest, respectively; and

          Fourth: to the Company.

     Except as otherwise provided in Section 2.12, the Trustee may fix a record
date and payment date for any payment to holders of Convertible Subordinated
Notes.

SECTION 6.11   Undertaking for Costs.
               --------------------- 

     In any suit for the enforcement of any right or remedy under this Indenture
or in any suit against the Trustee for any action taken or omitted by it as a
Trustee, a court in its discretion may require the filing by any party litigant
in the suit, other than the Trustee, of an undertaking to pay the costs of the
suit, and the court in its discretion may assess reasonable costs, including
reasonable attorneys fees, against any party litigant in the suit, having due
regard to the merits and good faith of the claims or defenses made by the party
litigant.  This Section does not apply to a suit by the Trustee, a suit by a
holder pursuant to Section 6.07 or a suit by holders of more than 10% in
principal amount of the then outstanding Convertible Subordinated Notes.


                                   ARTICLE 7

                                  The Trustee

     The Trustee hereby accepts the trust imposed upon it by this Indenture and
covenants and agrees to perform the same, as herein expressed.  Whether or not
herein expressly so provided, every provision of this Indenture relating to the
conduct or affecting the liability of or affording protection to the Trustee
shall be subject to the provisions of this Article 7.

SECTION 7.01   Duties of the Trustee.
               --------------------- 

     (a) If an Event of Default known to the Trustee has occurred and is
continuing, the Trustee shall exercise such of the rights and powers vested in
it by this Indenture and use the same degree of care and skill in their exercise
as a prudent person would exercise or use under the circumstances in the conduct
of his or her own affairs.

                                       35

 
     (b) Except during the continuance of an Event of Default known to the
Trustee:

          (1) The duties of the Trustee shall be determined solely by the
     express provisions of this Indenture and the Trustee need perform only
     those duties that are specifically set forth in this Indenture and no
     others and no implied covenants or obligations shall be read into this
     Indenture against the Trustee; and

          (2) In the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture.  However,
     the Trustee shall examine the certificates and opinions to determine
     whether or not they conform to the form required by this Indenture.

     (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act or its own willful misconduct, except
that:

          (1) This paragraph does not limit the effect of paragraph (b) of this
     Section;

          (2) The Trustee shall not be liable for any error of judgment made in
     good faith by a Trust Officer, unless it is proved that the Trustee was
     negligent in ascertaining the pertinent facts; and

          (3) The Trustee shall not be liable with respect to any action it
     takes or omits to take in good faith in accordance with a direction
     received by it pursuant to Section 6.05.

     (d) Whether or not therein expressly so provided, every provision of this
Indenture that is in any way related to the Trustee is subject to paragraphs
(a), (b) and (c) of this Section 7.01.

     (e) No provision of this Indenture shall require the Trustee to expend or
risk its own funds or incur any liability in the performance of any of its
duties or the exercise of any of its rights and powers hereunder.  The Trustee
may refuse to perform any duty or exercise any right or power unless it receives
indemnity satisfactory to it against any loss, liability or expense.

     (f) The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree with the Company.  Money held in trust by the
Trustee need not be segregated from other funds except to the extent required by
law.

SECTION 7.02   Rights of the Trustee.
               --------------------- 

     (a) The Trustee may rely on and shall be protected in acting or refraining
from acting upon any resolution, Officers' Certificate, or any other
certificate, statement, instrument, opinion, report, notice, request, consent,
order, security or other document believed by it to be

                                       36

 
genuine and to have been signed or presented by the proper person.  The Trustee
need not investigate any fact or matter contained therein.

     (b) Any request, direction, order or demand of the Company mentioned herein
shall be sufficiently evidenced by an Officers' Certificate (unless other
evidence in respect thereof is herein specifically prescribed).  In addition,
before the Trustee acts or refrains from acting, it may require an Officers'
Certificate, an Opinion of Counsel or both.  The Trustee shall not be liable for
any action it takes or omits to take in good faith in reliance on such Officers'
Certificate or Opinion of Counsel.  The Trustee may consult with counsel and the
written advice of such counsel or any Opinion of Counsel shall be full and
complete authorization and protection from liability in respect of any action
taken, suffered or omitted by it hereunder in good faith and in reliance
thereon.

     (c) The Trustee may execute any of the trusts or powers hereunder or
perform any duties hereunder either directly or by or through its attorneys and
agents and other Persons not regularly in its employ and shall not be
responsible for the misconduct or negligence of any attorney or agent appointed
with due care.

     (d) The Trustee shall not be liable for any action it takes or omits to
take in good faith which it believes to be authorized or within its discretion,
rights or powers.

     (e) Unless otherwise specifically provided in this Indenture, any demand,
request, direction or notice from the Company shall be sufficient if signed by
Officers of the Company.

     (f) The Trustee shall not be required to give any bond or surety in respect
of the performance of its powers and duties hereunder.

     (g) The Trustee shall be under no obligation to exercise any of the trusts
or powers vested in it by this Indenture at the request, order or discretion of
any of the holders of Convertible Subordinated Notes pursuant to the provisions
of this Indenture, unless such holders have offered to the Trustee reasonable
security or indemnity against the costs, expenses and liabilities which might be
incurred therein or thereby.

     (h) The Trustee shall not be bound to make any investigation into the facts
or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, security or other document
unless requested in writing to do so by the holders of not less than a majority
in aggregate principal amount of the Convertible Subordinated Notes then
outstanding, provided that if the Trustee determines in its sole and absolute
discretion to make any such investigation, then it shall be entitled, upon
reasonable prior notice and during normal business hours, to examine the books
and records and the premises of the Company, personally or by agent or attorney,
and the reasonable expenses of every such examination shall be paid by the
Company or, if paid by the Trustee or any predecessor Trustee, shall be
reimbursed by the Company upon demand.

                                       37

 
SECTION 7.03   Individual Rights of the Trustee.
               -------------------------------- 

The Trustee in its individual or any other capacity may become the owner or
pledgee of Convertible Subordinated Notes with the same rights it would have if
it were not the Trustee and may otherwise deal with the Company or an Affiliate
and receive, collect, hold and retain collections from the Company with the same
rights it would have if it were not Trustee.  Any Agent may do the same with
like rights.  However, the Trustee is subject to Sections 7.10 and 7.11.

SECTION 7.04   Trustee's Disclaimer.
               -------------------- 

     The Trustee shall not be responsible for and makes no representation as to
the validity or adequacy of this Indenture or the Convertible Subordinated
Notes.  It shall not be accountable for the Company's use of the proceeds from
the Convertible Subordinated Notes or any money paid to the Company or upon the
Company's direction under any provision of this Indenture.  It shall not be
responsible for the use or application of any money received by any Paying Agent
other than the Trustee, and it shall not be responsible for any statement or
recital herein or any statement in the Convertible Subordinated Notes or any
other document in connection with the sale of the Convertible Subordinated Notes
or pursuant to this Indenture other than its certificate of authentication.

SECTION 7.05   Notice of Defaults.
               ------------------ 

     If a Default or Event of Default occurs and is continuing and if it is
known to the Trustee, the Trustee shall mail to each holder of a Convertible
Subordinated Note a notice of the Default or Event of Default within 45 days
after it occurs.  A Default or an Event of Default shall not be considered known
to the Trustee unless it is a Default or Event of Default in the payment of
principal or interest when due under Section 6.01(a) or (b) or the Trustee shall
have received notice thereof, in accordance with this Indenture, from the
Company or from the holders of a majority in principal amount of the outstanding
Convertible Subordinated Notes.  Except in the case of a Default or Event of
Default in payment of principal or interest on any Convertible Subordinated
Note, the Trustee may withhold the notice if and so long as a committee of its
Trust Officers in good faith determines that withholding the notice is in the
interest of the holders of the Convertible Subordinated Notes.

SECTION 7.06   Reports by the Trustee to Holders.
               --------------------------------- 

     Within 60 days after the reporting date stated in Section 10.10, the
Trustee shall mail to holders of Convertible Subordinated Notes a brief report
dated as of such reporting date that complies with TIA (S) 313(a) (but if no
event described in TIA (S) 313(a) has occurred within twelve months preceding
the reporting date, no report need be transmitted).  The Trustee also shall
comply with TIA (S) 313(b)(2).  The Trustee shall also transmit by mail all
reports as required by TIA (S) 313(c).

                                       38

 
     A copy of each report at the time of its mailing to holders of Convertible
Subordinated Notes shall be filed, at the expense of the Company, by the Trustee
with the Commission and each stock exchange, if any, on which the Convertible
Subordinated Notes are listed.  The Company shall timely notify the Trustee when
the Convertible Subordinated Notes are listed on any stock exchange.

SECTION 7.07   Compensation and Indemnity.
               -------------------------- 

     The Company shall pay to the Trustee from time to time and the Trustee
shall be entitled to reasonable compensation for its acceptance of this
Indenture and its services hereunder.  The Trustee's compensation shall not be
limited by any law on compensation of a trustee of an express trust.  The
Company shall reimburse the Trustee promptly upon request for all reasonable
disbursements, advances and expenses incurred or made by or on behalf of it in
addition to the compensation for its services.  Such expenses may include the
reasonable compensation, disbursements and expenses of the Trustee's agents,
counsel and other Persons not regularly in its employ.

     The Company shall indemnify the Trustee against any loss, liability or
expense incurred by it arising out of or in connection with the acceptance or
administration of its duties under this Indenture and the trusts hereunder,
including the costs and expenses of defending itself against or investigating
any claim of liability in the premises, except as set forth in the next
paragraph.  The Trustee shall notify the Company promptly of any claim for which
it may seek indemnity.  Failure by the Trustee to so notify the Company shall
not relieve the Company of its obligations hereunder.  The Company shall defend
the claim with counsel designated by the Company, who may be outside counsel to
the Company but shall in all events be reasonably satisfactory to the Trustee,
and the Trustee shall cooperate in the defense.  In addition, the Trustee may
retain one separate counsel and, if deemed advisable by such counsel, local
counsel, and the Company shall pay the reasonable fees and expenses of such
separate counsel and local counsel.  The indemnification herein extends to any
settlement, provided that the Company will not be liable for any settlement made
without its consent, provided, further, that such consent will not be
unreasonably withheld.

     The Company need not reimburse any expense or indemnify against any loss or
liability incurred by the Trustee through its own negligence or bad faith.

     To secure the Company's payment obligations in this Section 7.07, the
Trustee shall have a Lien prior to the Convertible Subordinated Notes on all
money or property held or collected by the Trustee, except that held in trust to
pay principal and interest on Convertible Subordinated Notes.  Such Liens and
the Company's obligations under this Section shall survive the satisfaction and
discharge of this Indenture.

     When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 6.01(g) or (h) occurs, the expenses and the
compensation for the services (including

                                       39

 
the fees and expenses of its agents and counsel) are intended to constitute
expenses of administration under any Bankruptcy Law.

SECTION 7.08   Replacement of the Trustee.
               -------------------------- 

     A resignation or removal of the Trustee and appointment of a successor
Trustee shall become effective only upon the successor Trustee's acceptance of
appointment as provided in this Section.

     The Trustee may resign at any time and be discharged from the trust hereby
created by so notifying the Company.  The holders of a majority in principal
amount of the then outstanding Convertible Subordinated Notes may remove the
Trustee by so notifying the Trustee and the Company in writing and may appoint a
successor Trustee.  The Company may remove the Trustee if:

          (1) the Trustee fails to comply with Section 7.10;

          (2) the Trustee is adjudged a bankrupt or an insolvent or an order for
     relief is entered with respect to the Trustee under any Bankruptcy Law;

          (3) a Custodian or public officer takes charge of the Trustee or its
     property; or

          (4) the Trustee becomes incapable of acting.

     If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee.  Within one year after the successor Trustee takes office, the holders
of a majority in principal amount of the then outstanding Convertible
Subordinated Notes may appoint a successor Trustee to replace the successor
Trustee appointed by the Company.

     If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company or the
holders of at least 10% in principal amount of the then outstanding Convertible
Subordinated Notes may petition any court of competent jurisdiction for the
appointment of a successor Trustee.

     If the Trustee after written request by any holder of a Convertible
Subordinated Note who has been a holder for at least six months fails to comply
with Section 7.10, such holder may petition any court of competent jurisdiction
for the removal of the Trustee and the appointment of a successor Trustee.

     A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company.  Thereupon the resignation or
removal of the retiring Trustee shall become effective, and the successor
Trustee shall have all the rights, powers and duties of the Trustee under this
Indenture.  The successor Trustee shall mail a notice of its succession to

                                       40

 
holders of Convertible Subordinated Notes.  The retiring Trustee shall promptly
transfer all property held by it as Trustee to the successor Trustee, provided
that all sums owing to the retiring Trustee hereunder have been paid and subject
to the lien provided for in Section 7.07.  Notwithstanding the replacement of
the Trustee pursuant to this Section 7.08, the Company's obligations under
Section 7.07 shall continue for the benefit of the retiring Trustee.

     Upon request of any such successor Trustee, the Company shall execute any
and all instruments for more fully and certainly vesting in and confirming to
such successor Trustee all such rights, powers and trusts referred to in the
preceding paragraph.

SECTION 7.09   Successor Trustee by Merger, etc.
               ---------------------------------

     If the Trustee consolidates with, merges or converts into, or transfers all
or substantially all of its corporate trust business to, another corporation or
national banking association, the resulting, surviving or transferee corporation
or national banking association without any further act shall be the successor
Trustee with the same effect as if the successor Trustee had been named as the
Trustee herein.

SECTION 7.10   Eligibility, Disqualification.
               ----------------------------- 

     This Indenture shall always have a Trustee who satisfies the requirements
of TIA (S) 310(a)(1).  The Trustee shall always have a combined capital and
surplus as stated in Section 10.10.  The Trustee is subject to TIA (S) 310(b)
regarding the disqualification of a trustee upon acquiring a conflicting
interest.

SECTION 7.11   Preferential Collection of Claims Against Company.
               ------------------------------------------------- 

     The Trustee shall comply with TIA (S) 311(a), excluding any creditor
relationship set forth in TIA (S) 311(b).  A Trustee who has resigned or been
removed shall be subject to TIA (S) 311(a) to the extent indicated therein.


                                   ARTICLE 8

                    Satisfaction and Discharge of Indenture

SECTION 8.01   Termination of Company's Obligations.
               ------------------------------------ 

     (i) This Indenture shall cease to be of further effect (except that the
Company's obligations under Section 7.07 and 8.03 shall survive) when all
outstanding Convertible Subordinated Notes theretofore authenticated and issued
have been delivered (other than destroyed, lost or stolen Convertible
Subordinated Notes that have been replaced or paid) to the Trustee for
cancellation and the Company has paid all sums payable hereunder.  In addition,
the Company may terminate its obligations under this Indenture (except the
Company's obligations

                                       41

 
under Sections 7.07 and 8.03) if, under terms satisfactory to the Trustee: (a)
the Convertible Subordinated Notes have either become due and payable or are by
their terms due and payable within one year or scheduled for redemption within
one year; and (b) the Company irrevocably deposits in trust with the Trustee
money or United States Government Obligations (defined below in this Section
8.01), or a combination thereof, sufficient, without consideration of the
reinvestment of interest in the opinion of the chief financial officer of the
Company expressed in a written certificate delivered to the Trustee, to pay
principal and interest on the Convertible Subordinated Notes to maturity or upon
redemption, as the case may be.  The Company may make the deposit only if
Article 11 permits it.

     However, the Company's obligations in Sections 2.03, 2.04, 2.05, 2.06,
2.07, 4.01, 4.04, 7.07, 7.08, 8.03 and 8.04 shall survive until the Convertible
Subordinated Notes are no longer outstanding.  Thereafter, only the Company's
obligations in Sections 7.07 and 8.03 shall survive.

     After a deposit made pursuant to this Section 8.01, the Trustee upon
request of the Company shall acknowledge in writing the discharge of the
Company's obligations under this Indenture except for those surviving
obligations specified above.

     In addition, the Company may elect to have either clause (ii) or clause
(iii) below be applied to the outstanding Convertible Subordinated Notes upon
compliance with the conditions set forth in clause (iv) below.

     (ii) Upon the Company's exercise under the last sentence of paragraph (i)
above of the option applicable to this paragraph (ii), the Company shall be
deemed to have been released and discharged from its obligations with respect to
the outstanding Convertible Subordinated Notes on the date the conditions set
forth below are satisfied ("legal defeasance").  For this purpose, legal
defeasance means that the Company shall be deemed to have paid and discharged
the entire indebtedness represented by the outstanding Convertible Subordinated
Notes, which shall thereafter be deemed to be "outstanding" only for the purpose
of the Sections of and matters under this Indenture referred to in subclauses
(A), (B), (C) and (D) of this clause (ii), and to have satisfied all its other
obligations under such Convertible Subordinated Notes and this Indenture insofar
as such Convertible Subordinated Notes are concerned (and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging the
same), except for the following, which shall survive until otherwise terminated
or discharged hereunder: (A) the rights of holders of outstanding Convertible
Subordinated Notes to receive solely from the trust fund described in clause
(iv) below and as more fully set forth in such clause, payments in respect of
the principal of premium, if any, and interest on such Convertible Subordinated
Notes when such payments are due, (B) the Company's obligations with respect to
such Convertible Subordinated Notes when such payments are due, (C) the
Company's obligations with respect to such Convertible Subordinated Notes under
Sections 2.03, 2.05, 2.06, 2.07 and 4.04, and, with respect to the Trustee,
under Section 7.07, (D) the rights, powers, trusts, duties and immunities of the
Trustee hereunder and (E) this Section 8.01 and Sections 8.03 and 8.04.  Subject
to compliance with this Section 8.01, the Company may exercise its option under
this

                                       42

 
clause (ii) notwithstanding the prior exercise of its option under paragraph
(iii) below with respect to the Convertible Subordinated Notes.

     (iii) Upon the Company's exercise under the last sentence of clause (i) of
the option applicable to this clause (iii), the Company shall be released and
discharged from its obligations under any covenant contained in Article 4
(except for Sections 4.01 and 4.04) and Article 5 with respect to the
outstanding Convertible Subordinated Notes on and after the date the conditions
set forth below are satisfied ("covenant defeasance"), and the Convertible
Subordinated Notes shall thereafter be deemed to be not "outstanding" for the
purpose of any direction, waiver, consent or declaration or act of holders of
Convertible Subordinated Notes (and the consequences of any thereof) in
connection with such covenants, but shall continue to be deemed "outstanding"
for all other purposes hereunder.  For this purpose, such covenant defeasance
means that, with respect to the outstanding Convertible Subordinated Notes, the
Company may omit to comply with and shall have no liability in respect of any
term, condition or limitation set forth in any such covenant, whether directly
or indirectly, by reason of any reference elsewhere herein to any such covenant
or by reason of any reference in any such covenant to any other provision herein
or in any other document and such omission to comply shall not constitute a
Default or an Event of Default under Section 6.01 but, except as specified
above, the remainder of this Indenture (including without limitation obligations
set forth in Sections 8.03 and 8.04 hereof) and such Convertible Subordinated
Notes shall be unaffected thereby.

     (iv) The following shall be the conditions to the application of either
clause (ii) or (iii) above to the outstanding Convertible Subordinated Notes:

       (a) the Company has irrevocably deposited in trust with the Trustee or,
     at the option of the Trustee, with a trustee, satisfactory to the Trustee
     and the Company, under terms of an irrevocable trust agreement in form and
     substance satisfactory to the Trustee, cash in U.S.  dollars, United States
     Government Obligations, or a combination thereof, in such amounts as will
     be sufficient, in the opinion of the Chief Financial Officer of the Company
     expressed in a written certificate delivered to the Trustee, to pay the
     principal of, premium, if any, and interest on the outstanding Convertible
     Subordinated Notes on the stated maturity or on the applicable redemption
     date, as the case may be, of such principal or installment of principal of,
     premium, if any, or interest on the outstanding Convertible Subordinated
     Notes; provided that (i) the trustee of the irrevocable trust shall have
     been irrevocably instructed to pay such money or the proceeds of such
     United States Government Obligations to the Trustee, (ii) the Trustee shall
     have been irrevocably instructed to apply such money or the proceeds of
     such United States Government Obligations to the payment of said principal
     and interest with respect to the Convertible Subordinated Notes, and (iii)
     such deposit does not violate Article 11 hereto;

          (b) in the case of an election under clause (ii) above, the Company
     shall have delivered to the Trustee an Opinion of Counsel from nationally
     recognized counsel reasonably acceptable to the Trustee stating that (x)
     the Company has received from, or there has been published by, the Internal
     Revenue Service a ruling or (y) since the date

                                       43

 
     of this Indenture, there has been a change in the applicable federal income
     tax law, in either case to the effect that the holders of the outstanding
     Convertible Subordinated Notes will not recognize income, gain or loss for
     federal income tax purposes as a result of such legal defeasance and will
     be subject to federal income tax on the same amount and in the same manner
     and at the same time as would have been the case if such legal defeasance
     had not occurred;

          (c) in the case of an election under clause (iii) above, the Company
     shall have delivered to the Trustee an Opinion of Counsel from nationally
     recognized counsel reasonably acceptable to the Trustee (i) to the effect
     that the holders of the outstanding Convertible Subordinated Notes will not
     recognize income, gain or loss for federal income tax purposes as a result
     of such covenant defeasance and will be subject to federal income tax on
     the same amount and in the same manner and at the same time as would have
     been the case if such covenant defeasance had not occurred or (ii) that the
     Company has received from, or there has been published by, the Internal
     Revenue Service a ruling to the foregoing effect;

          (d) no Default or Event of Default shall have occurred and be
     continuing on the date of such deposit;

          (e) such legal defeasance or covenant defeasance shall not result in a
     breach or violation of, or constitute a Default or Event of Default under,
     any material agreement or instrument (including any agreement or instrument
     governing or evidencing Designated Senior Indebtedness) to which the
     Company or any of its subsidiaries is bound;

          (f) The Company shall deliver to the Trustee an Opinion of Counsel to
     the effect that after the 91st day following the deposit, the trust funds
     will not be subject to the effect of any applicable bankruptcy, insolvency,
     reorganization or similar laws affecting creditors' rights generally;

          (g) the Company shall have delivered to the Trustee an Officers'
     Certificate stating that the deposit was not made by the Company with the
     intent of preferring the holders of Convertible Subordinated Notes over the
     other creditors of the Company with the intent of defeating, hindering,
     delaying or defrauding creditors of the Company or others; and

          (h) the Company has delivered to the Trustee an Officers' Certificate
     and an Opinion of Counsel stating that all conditions precedent provided
     for relating to the legal defeasance under clause (ii) above or the
     covenant defeasance under clause (iii) above, as the case may be, have been
     complied with.

     After such irrevocable deposit made pursuant to this Section 8.01 (and
satisfaction of the other conditions set forth herein), the Trustee upon request
shall acknowledge in writing the

                                       44

 
discharge of the Company's obligations under this Indenture except for those
surviving obligations specified above.

     As used herein, "United States Government Obligations" means obligations
for which the full faith and credit of the United States of America is pledged
and which are not callable at the issuer's option.

SECTION 8.02   Application of Trust Money.
               -------------------------- 

     The Trustee shall hold in trust money or United States Government
Obligations deposited with it pursuant to Section 8.01.  It shall apply the
deposited money and the money from United States Government Obligations through
the Paying Agent and in accordance with this Indenture to the payment of
principal and interest on the Convertible Subordinated Notes.  Money and
securities so held in trust are not subject to Article 11.

SECTION 8.03   Repayment to Company.
               -------------------- 

     The Trustee and the Paying Agent shall promptly pay to the Company upon
request any excess money or securities held by them at any time.

     The Trustee and the Paying Agent shall pay to the Company upon request any
money held by them for the payment of principal or interest that remains
unclaimed for two years after the date upon which such payment shall have become
due; provided, however, that the Company shall have first caused notice of such
payment to the Company to be mailed to each holder of a Convertible Subordinated
Note entitled thereto no less than 30 days prior to such payment.  After payment
to the Company, holders entitled to the money must look to the Company for
payment as general creditors unless an applicable abandoned property law
designates another person and all liability of the Trustee and such Paying Agent
with respect to such money shall cease.

SECTION 8.04   Reinstatement.
               ------------- 

     If the Trustee or Paying Agent is unable to apply any money in accordance
with Section 8.02 by reason of any order or judgment of any court or
governmental authority enjoining, restraining or otherwise prohibiting such
application, the Company's obligations under this Indenture and the Convertible
Subordinated Notes shall be revived and reinstated as though no deposit had
occurred pursuant to Section 8.01 until such time as the Trustee or Paying Agent
is permitted to apply all such money in accordance with Section 8.02; provided,
however, that if the Company makes any payment of interest on or principal of
any Convertible Subordinated Note following the reinstatement of its
obligations, the Company shall be subrogated to the rights of the holders of
such Convertible Subordinated Notes to receive such payment from the money held
by the Trustee or Paying Agent.

                                       45

 
                                 ARTICLE 9

                                   Amendments

SECTION 9.01  Without the Consent of Holders.
              ------------------------------ 

          The Company and the Trustee may amend this Indenture or the
Convertible Subordinated Notes without notice to or the consent of any holder of
a Convertible Subordinated Note for the purposes of:

          (a) adding to the covenants of the Company for the benefit of the
     holders of Convertible Subordinated Notes;

          (b) surrendering any right or power herein conferred upon the Company;

          (c) providing for conversion rights of holders of Convertible
     Subordinated Notes in the event of consolidation, merger or sale of all or
     substantially all of the assets of the Company and to otherwise comply with
     Section 5.01;

          (d) evidencing the succession of another Person to the Company and the
     assumption by such successor of the covenants and obligations of the
     Company thereunder and in the Convertible Subordinated Notes as permitted
     herein;

          (e) reducing the Conversion Price, provided that such reduction will
     not adversely affect the interests of holders of Convertible Subordinated
     Notes in any material respect; or

          (f) curing any ambiguity or correcting or supplementing any defective
     provision contained in this Indenture, or making any other changes in the
     provisions of this Indenture which the Company and the Trustee may deem
     necessary or desirable and which will not adversely affect the interest of
     the holders of Convertible Subordinated Notes.

SECTION 9.02   With the Consent of Holders.
               --------------------------- 

     Subject to Section 6.07, the Company and the Trustee may amend this
Indenture or the Convertible Subordinated Notes with the written consent of the
holders of at least a majority in principal amount of the then outstanding
Convertible Subordinated Notes.

     Subject to Sections 6.04 and 6.07, the holders of a majority in principal
amount of the Convertible Subordinated Notes then outstanding may also waive
compliance in a particular instance by the Company with any provision of this
Indenture or the Convertible Subordinated Notes.

                                       46

 
     However, without the consent of each holder of a Convertible Subordinated
Note affected, an amendment or waiver under this Section may not:

          (a) reduce the amount of Convertible Subordinated Notes whose holders
     must consent to an amendment or waiver;

          (b) reduce the rate of, or extend the time for payment of, interest,
     including defaulted interest, on any Convertible Subordinated Note;

          (c) reduce the principal of or premium on or change the fixed maturity
     of any Convertible Subordinated Note or alter redemption provisions with
     respect thereto;

          (d) make the principal of, or premium, if any, or interest on, any
     Convertible Subordinated Note payable in money other than as provided for
     herein and in the Convertible Subordinated Notes;

          (e) waive continuing default in the payment of the principal of or
     premium, if any, or interest on, redemption or repurchase payment with
     respect to, any Convertible Subordinated Notes, including without
     limitation a continuing failure to make payment when required upon a Change
     of Control or after an Asset Sale Offer Trigger Date;

          (f) after the Company's obligation to purchase the Convertible
     Subordinated Notes arises hereunder, to then amend, modify or change the
     obligation of the Company to make or consummate a Change of Control Offer
     in the event of a Change of Control or an Asset Sale Offer in the event of
     an Asset Sale Offer Trigger Date or waive any default in the performance
     thereof or modify any of the provisions or definitions with respect to such
     offers;

          (g) modify the provision contained herein relating to conversion of or
     subordination of the Convertible Subordinated Notes in a manner adverse to
     the holders thereof; or

          (h) make any change in provisions relating to waivers of defaults, the
     abilities of holders of Convertible Subordinated Notes to enforce their
     rights hereunder or the provisions of clauses (a) through (h) of this
     Section 9.02.

     To secure a consent of the holders of Convertible Subordinated Notes under
this Section, it shall not be necessary for such holders to approve the
particular form of any proposed amendment or waiver, but it shall be sufficient
if such consent approves the substance thereof.

     After an amendment or waiver under this Section becomes effective, the
Company shall mail to holders of Convertible Subordinated Notes a notice briefly
describing the amendment or waiver.

                                       47

 
     The Company agrees that no amendment, supplement or waiver under this
Article 9 may make any change that adversely affects the rights under Article 11
of any holders of any Designated Senior Indebtedness unless the percentage of
holders necessary to amend or waive terms of such Designated Senior Indebtedness
consent to such change.

SECTION 9.03   Compliance with the Trust Indenture Act.
               --------------------------------------- 

     Every amendment to this Indenture or the Convertible Subordinated Notes
shall be set forth in a supplemental indenture that complies with the TIA as
then in effect.


SECTION 9.04   Revocation and Effect of Consents.
               --------------------------------- 

     Until an amendment or waiver becomes effective, a consent to it by a holder
of a Convertible Subordinated Note is a continuing consent by the holder and
every subsequent holder of a Convertible Subordinated Note or portion of a
Convertible Subordinated Note that evidences the same debt as the consenting
holder's Convertible Subordinated Note, even if notation of the consent is not
made on any Convertible Subordinated Note.  However, any such holder or
subsequent holder may revoke the consent as to his or her Convertible
Subordinated Note or portion of a Convertible Subordinated Note if the Trustee
receives the notice of revocation before the date on which the Trustee receives
an Officers' Certificate certifying that the holders of the requisite principal
amount of Convertible Subordinated Notes have consented to the amendment or
waiver.

     The Company may, but shall not obligated to, fix a record date for the
purpose of determining the holders of Convertible Subordinated Notes entitled to
consent to any amendment or waiver.  If a record date is fixed, then
notwithstanding the provisions of the immediately preceding paragraph, those
persons who were holders of Convertible Subordinated Notes at such record date
(or their duly designated proxies), and only those persons, shall be entitled to
consent to such amendment or waiver or to revoke any consent previously given,
whether or not such persons continue to be holders after such record date.  No
consent shall be valid or effective for more than 90 days after such record date
unless consents from holders of the principal amount of Convertible Subordinated
Notes required hereunder for such amendment or waiver to be effective shall have
also been given and not revoked within such 90-day period.

     After an amendment or waiver becomes effective it shall bind every holder
of a Convertible Subordinated Note, unless it is of the type described in any of
clauses (1) through (9) of Section 9.02.  In such case, the amendment or waiver
shall bind each holder of a Convertible Subordinated Note who has consented to
it.

SECTION 9.05   Notation on or Exchange of Convertible Subordinated Notes.
               --------------------------------------------------------- 

     Convertible Subordinated Notes authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article 9 may, and
shall if required by the Trustee, bear a notation in the form approved by the
Trustee as to any matter provided for in such

                                       48

 
supplemental indenture.  If the Company shall so determine, new Convertible
Subordinated Notes so modified as to conform, in the opinion of the Company and
the Trustee, to any such supplemental indenture may be prepared and executed by
the Company and authenticated and delivered by the Trustee in exchange for
outstanding Convertible Subordinated Notes.

SECTION 9.06   Trustee Protected.
               ----------------- 

     The Trustee shall sign any amendment or supplemental indenture authorized
pursuant to this Article 9 if such amendment or supplemental indenture does not
adversely affect the rights, duties, liabilities or immunities of the Trustee.
If it does, the Trustee may, but need not, sign it.  In signing such amendment
or supplemental indenture, the Trustee shall be entitled to receive, and shall
be fully protected in relying upon, an Officers' Certificate and an Opinion of
Counsel as conclusive evidence that such amendment or supplemental indenture is
authorized or permitted by this Indenture, that it is not inconsistent herewith,
and that it will be valid and binding upon the Company in accordance with its
terms.


                                   ARTICLE 10

                               General Provisions

SECTION 10.01  Trust Indenture Act Controls.
               ---------------------------- 

     If any provision of this Indenture limits, qualifies or conflicts with the
duties imposed by TIA (S) 318(c), the imposed duties shall control.

SECTION 10.02  Notices.
               ------- 

     Any notice or communication by the Company or the Trustee to the other is
duly given if in writing and delivered in person or mailed by first-class mail,
with postage prepaid (registered or certified, return receipt requested),
facsimile or overnight air couriers guaranteeing next day delivery, to the
other's address stated in Section 10.10.  The Company or the Trustee by notice
to the other may designate additional or different addresses for subsequent
notices or communications.

     All notices and communications (other than those sent to holders of
Convertible Subordinated Notes) shall be deemed to have been duly given at the
time delivered by hand, if personally delivered; five business days after being
deposited in the mail, postage prepaid, if mailed; when transmission confirmed,
if transmitted by facsimile; and the next business day after timely delivery to
the courier, if sent by overnight air courier guaranteeing next day delivery.

     Any notice or communication to a holder of a Convertible Subordinated Note
shall be mailed by first-class mail, with postage prepaid, to his or her address
shown on the register kept

                                       49

 
by the Registrar.  Failure to mail a notice or communication to a holder or any
defect in it shall not affect its sufficiency with respect to other holders.

     If a notice or communication is sent in the manner provided above within
the time prescribed, it is duly given, whether or not the addressee receives it.

     If the Company sends a notice or communication to holders of Convertible
Subordinated Notes, it shall send a copy to the Trustee and each Agent at the
same time.

     All other notices or communications shall be in writing.

SECTION 10.03  Communication by Holders With Other Holders.
               ------------------------------------------- 

     Holders may communicate pursuant to TIA (S) 312(b) with other holders with
respect to their rights under this Indenture or the Convertible Subordinated
Notes.  The Company, the Trustee, the Registrar and anyone else shall have the
protection of TIA (S) 312(c).

SECTION 10.04  Certificate and Opinion as to Conditions Precedent.
               -------------------------------------------------- 

     Upon any request or application by the Company to the Trustee to take any
action under this Indenture, the Company shall furnish to the Trustee:

          (1) an Officers' Certificate in form and substance reasonably
     satisfactory to the Trustee (which shall include the statements set forth
     in Section 10.05) stating that, in the opinion of such person, all
     conditions precedent and covenants, if any, provided for in this Indenture
     relating to the proposed action have been complied with; and

          (2) an Opinion of Counsel in form and substance reasonably
     satisfactory to the Trustee (which shall include the statements set forth
     in Section 10.05) stating that, in the opinion of such counsel, all such
     conditions precedent and covenants have been complied with.

SECTION 10.05  Statements Required in Certificate or Opinion.
               --------------------------------------------- 

Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture (other than a certificate provided
pursuant to TIA (S) 314(a)(4)) shall include:

          (1) a statement that the person making such certificate or opinion has
     read such covenant or condition;

          (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

                                       50

 
          (3) a statement that, in the opinion of such person, he or she has
     made such examination or investigation as is necessary to enable him or her
     to express an informed opinion as to whether or not such covenant or
     condition has been complied with; and

          (4) a statement as to whether or not, in the opinion of such person,
     such condition or covenant has been complied with.

     Any Officers' Certificate may be based, insofar as it relates to legal
matters, upon an Opinion of Counsel, unless such Officer knows that the opinion
with respect to the matters upon which his certificate may be based as aforesaid
is erroneous.  Any Opinion of Counsel may be based, insofar as it relates to
factual matters, upon certificates, statements or opinions of, or
representations by an officer or officers of the Company, or other persons or
firms deemed appropriate by such counsel, unless such counsel knows that the
certificates, statements or opinions or representations with respect to the
matters upon which his certificate, statement or opinion may be based as
aforesaid are erroneous.

     Any Officers' Certificate, statement or Opinion of Counsel may be based,
insofar as it relates to accounting matters, upon a certificate or opinion of or
representation by an accountant (who may be an employee of the Company), or firm
of accountants, unless such Officer or counsel, as the case may be, knows that
the certificate or opinion or representation with respect to the accounting
matters upon which his certificate, statement or opinion may be based as
aforesaid is erroneous.

SECTION 10.06  Rules by Trustee and Agents.
               --------------------------- 

     The Trustee may make reasonable rules for action by or a meeting of holders
of Convertible Subordinated Notes.  The Registrar or Paying Agent may make
reasonable rules and set reasonable requirements for its functions.

SECTION 10.07  Legal Holidays.
               -------------- 

     A "Legal Holiday" is a Saturday, a Sunday or a day on which banking
institutions in the City of New York are not required to be open, and a business
day is any day that is not a Legal Holiday.  If a payment date is a Legal
Holiday at a place of payment, payment may be made at that place on the next
succeeding day that is not a Legal Holiday, and no interest shall accrue for the
intervening period.

SECTION 10.08  No Recourse Against Others.
               -------------------------- 

     No director, officer, employee or stockholder, as such, of the Company from
time to time shall have any liability for any obligations of the Company under
the Convertible Subordinated Notes or this Indenture or for any claim based on,
in respect of, or by reason of such obligations or their creation.  Each holder
by accepting a Convertible Subordinated Note waives and releases all such
liability.  This waiver and release are part of the consideration for

                                       51

 
the Convertible Subordinated Notes.  Each of such directors, officers, employees
and stockholders is a third party beneficiary of this Section 10.08.

SECTION 10.09  Counterparts.
               ------------ 

     This Indenture may be executed in any number of counterparts and by the
parties hereto in separate counterparts, each of which when so executed shall be
deemed to be an original and all of which taken together shall constitute one
and the same agreement.

SECTION 10.10  Other Provisions.
               ---------------- 

     The Company initially appoints the Trustee as Paying Agent, Registrar and
authenticating agent.

     The first certificate pursuant to Section 4.03 shall be for the first full
fiscal quarter of the Company following the issuance of Convertible Subordinated
Notes hereunder.

     The reporting date for Section 7.06 is April 15 of each year.  The first
reporting date is the first April 15 following the issuance of Convertible
Subordinated Notes hereunder.

     The Trustee shall always have, or shall be a subsidiary of a bank or bank
holding company which has, a combined capital and surplus of at least
$50,000,000 as set forth in its most recent published annual report of
condition.

     The Company's address is:

          Rohr, Inc.
          850 Lagoon Drive
          Chula Vista, CA 91910
          Attention: General Counsel
          Facsimile: (619) 691-4222
          Telephone: (619) 691-2025

     The Trustee's address is:

          The Bank of New York
          101 Barclay Street, 21st Floor West
          New York, New York 10286
          Attention: Corporate Trust Administration
          Facsimile: (212) 815-5915
          Telephone: (212) 815-5736

     The Bank Agent's address is:

                                       52

 
          Citicorp USA, Inc.
          c/o Citicorp North America, Inc.
          725 South Figueroa Street
          Los Angeles, CA 90017
          Attention: Airline and Aerospace Group
          Facsimile: (213) 623-3592

SECTION 10.11  Governing Law.
               ------------- 

     The internal laws of the State of New York shall govern this Indenture and
the Convertible Subordinated Notes, without regard to the conflict of laws
provisions thereof.

SECTION 10.12  No Adverse Interpretation of Other Agreements.
               --------------------------------------------- 

     This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or a subsidiary. Any such other indenture, loan or debt
agreement may not be used to interpret this Indenture.

SECTION 10.13  Successors.
               ---------- 

     All agreements of the Company in this Indenture and the Convertible
Subordinated Notes shall bind its successor. All agreements of the Trustee in
this Indenture shall bind its successor.

SECTION 10.14  Severability.
               ------------ 

     In case any provision in this Indenture or in the Convertible Subordinated
Notes shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

SECTION 10.15  Table of Contents, Headings, Etc.
               -------------------------------- 

     The Table of Contents, Cross-Reference Table and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof and shall in no way modify or
restrict any of the terms or provisions hereof.


                                   ARTICLE 11

                                 Subordination

                                       53

 
SECTION 11.01  Agreement To Subordinate.
               ------------------------ 

     The Company agrees, and each holder by accepting a Convertible Subordinated
Note agrees, that the indebtedness evidenced by the Convertible Subordinated
Notes is subordinated and junior in right of payment, to the extent and in the
manner provided in this Article, to the prior payment in full in cash or Cash
Equivalents of all Senior Indebtedness and that the subordination is for the
benefit of the holders of Senior Indebtedness from time to time.

SECTION 11.02  Liquidation; Dissolution; Bankruptcy.
               ------------------------------------ 

     Upon any distribution to creditors of the Company in a liquidation,
reorganization or dissolution of the Company (in each case whether total or
partial) or in a bankruptcy, reorganization, insolvency, receivership or similar
proceeding or upon assignment for the benefit of creditors relating to the
Company or its property, or a marshalling of assets or liabilities of the
Company (in each case whether voluntary or involuntary);

          (1) holders of Senior Indebtedness shall first be entitled to be paid
     all obligations owing thereon or in respect thereof in full in cash or Cash
     Equivalents before any payment or distribution may be made on or in respect
     of the Convertible Subordinated Notes, except to the extent that holders
     receive securities that are subordinated to Senior Indebtedness to at least
     the same extent as the Convertible Subordinated Notes (the "Other
     Subordinated Securities"); and

          (2) holders of Convertible Subordinated Notes (or the Trustee on their
     behalf) will be required to pay over their share of such distribution
     directly to any Representative of the holders of Senior Indebtedness for
     payment thereto or, if such holders have no Representative, directly to
     such holders of Senior Indebtedness, until such Senior Indebtedness is paid
     in full in cash or Cash Equivalents except to the extent that holders of
     Convertible Subordinated Notes receive Other Subordinated Securities.

     For purposes of this Article 11, a distribution may consist of cash,
securities or other property, by payment, transfer, set-off or otherwise.

SECTION 11.03  Default on Designated Senior Indebtedness.
               ----------------------------------------- 

     The Company may not make any direct or indirect payment on or in respect of
any obligations on the Convertible Subordinated Notes and may not acquire or
defease any Convertible Subordinated Notes from the Trustee or any holder of
Convertible Subordinated Notes for cash or property (other than Other
Subordinated Securities) if:

          (a) a default in the payment of any principal or other obligation in
     respect of Designated Senior Indebtedness occurs and is continuing beyond
     any applicable grace period; or

                                       54

 
          (b) a default, other than a default referred to in clause (a) above,
     on any Designated Senior Indebtedness occurs and is continuing that then
     permits holders of such Designated Senior Indebtedness to accelerate its
     maturity and the Trustee receives a notice of the default from the Bank
     Agent or other Representative on behalf of Designated Senior Indebtedness
     requesting that payments in respect of the Convertible Subordinated Notes
     be prohibited.

     So long as payments on the Convertible Subordinated Notes are otherwise
permitted, then the Company may and shall resume payments on the Convertible
Subordinated Notes and may acquire them upon the earlier of:

          (x) the date upon which such default is cured or waived, or

          (y) in the case of a default and notice referred to in (b) above, 179
     days after such notice is received by the Trustee (the "Payment Blockage
     Period").

     Only one Payment Blockage Period may be commenced within any consecutive
365-day period with respect to the Convertible Subordinated Notes.

SECTION 11.04  Acceleration of Convertible Subordinated Notes.
               ---------------------------------------------- 

     If payment of the Convertible Subordinated Notes is accelerated because of
an Event of Default, the Company and the Trustee each shall promptly notify
holders of Senior Indebtedness of the acceleration.

SECTION 11.05  When Distributions Must Be Paid Over.
               ------------------------------------ 

     In the event that any payment or distribution of assets of the Company,
whether in cash, property or securities (other than Other Subordinated
Securities) shall be received by the Trustee on account of the principal or
interest on or other obligations in respect of the Convertible Subordinated
Notes at a time when the Trustee shall have received notice in accordance with
Section 11.11 that such payment is prohibited by Section 11.02 or 11.03, such
payment or distribution shall be segregated and held by the Trustee in trust for
the benefit of, and shall forthwith be paid over and delivered to any
Representative of the holders of Senior Indebtedness for payments thereto, or,
if such holders have no Representative, directly to such holders of Senior
Indebtedness (pro rata as to each of such holders on the basis of the respective
amounts of Senior Indebtedness held by them), as their respective interests may
appear, for application to the payment of all Senior Indebtedness remaining
unpaid to the extent necessary to pay all Senior Indebtedness in full in cash or
Cash Equivalents in accordance with its terms, after giving effect to any
concurrent payment or distribution to or for the holders of Senior Indebtedness.
Any distribution to the holders of the Senior Indebtedness or their
Representatives of assets other than cash or Cash Equivalents may be held by
such holders or Representatives as collateral securing the payment of such
Senior Indebtedness without any duty to liquidate or otherwise realize on such
assets or to apply such assets to any Senior Indebtedness.

                                       55

 
     If a payment or distribution is made to holders of Convertible Subordinated
Notes that because of this Article 11 should not have been made to them, the
holders of Convertible Subordinated Notes who receive the payment or
distribution shall hold it segregated from other assets and hold it in trust for
holders of Senior Indebtedness and pay it over to them as their interests may
appear for application to the payment of all Senior Indebtedness remaining
unpaid to the extent necessary to pay all Senior Indebtedness in full in cash or
Cash Equivalents in accordance with its terms, after giving effect to any
concurrent payment or distribution to or for the holders of Senior Indebtedness.

SECTION 11.06  Notice by the Company.
               --------------------- 

     The Company shall promptly notify the Trustee and the Paying Agent of any
facts known to the Company that would cause a payment of principal of or
interest on the Convertible Subordinated Notes to violate this Article, but
failure to give such notice shall not affect the subordination of the
Convertible Subordinated Notes to the Senior Indebtedness provided in this
Article.  Nothing in this Article shall apply to claims of, or payments to, the
Trustee under or pursuant to Section 7.07.

SECTION 11.07  Subrogation.
               ----------- 

     After all Senior Indebtedness is paid in full in cash or Cash Equivalents
and all letters of credit under the Revolving Credit Agreement have expired or
been terminated or the reimbursement obligations of the Company in respect of
such letters of credit then outstanding have been fully secured by cash or Cash
Equivalents and until the Convertible Subordinated Notes are paid in full,
holders of Convertible Subordinated Notes shall be subrogated to the rights of
holders of Senior Indebtedness to receive distributions applicable to Senior
Indebtedness to the extent that distributions otherwise payable to the holders
of Convertible Subordinated Notes have been applied to the payment of Senior
Indebtedness.  A distribution made under this Article to holders of Senior
Indebtedness which otherwise would have been made to holders of Convertible
Subordinated Notes is not, as between the Company and such holders, a payment by
the Company on Senior Indebtedness.

SECTION 11.08  Relative Rights.
               --------------- 

     This Article defines the relative rights of holders of Convertible
Subordinated Notes and holders of Senior Indebtedness.  Nothing in this
Indenture shall:

          (1) impair, as between the Company and holders of Convertible
     Subordinated Notes, the obligation of the Company, which is absolute and
     unconditional, to pay principal of and interest on the Convertible
     Subordinated Notes in accordance with their terms;

                                       56

 
          (2) affect the relative rights of holders of Convertible Subordinated
     Notes and creditors of the Company, other than their rights in relation to
     holders of Senior Indebtedness; or

          (3) prevent the Trustee or any holder of a Convertible Subordinated
     Note from exercising its available remedies upon a Default or Event of
     Default, subject to the rights of holders of Senior Indebtedness to receive
     payments and distributions otherwise payable to holders of Convertible
     Subordinated Notes.

     If the Company fails because of this Article to pay principal of or
interest on a Convertible Subordinated Note on the due date, the failure is
still a Default or Event of Default.

SECTION 11.09  Subordination May Not Be Impaired by the Company.
               ------------------------------------------------ 

     No right of any holder of Senior Indebtedness to enforce the subordination
of the indebtedness evidenced by the Convertible Subordinated Notes shall be
impaired by any act or failure to act by the Company or by its failure to comply
with this Indenture (regardless of any knowledge thereof that such holder may
have or otherwise be charged with), or by any act or failure to act by such
holder.

     If at any time any payment of any obligations with respect to any Senior
Indebtedness is rescinded or must otherwise be returned upon the insolvency,
bankruptcy, reorganization or liquidation of the Company or otherwise, the
provisions of this Article 11 shall continue to be effective or reinstated, as
the case may be, to the same extent as though such payment had not been made.

SECTION 11.10  Distribution of Notice to the Representative.
               -------------------------------------------- 

     Whenever a distribution is to be made or a notice given to holders of
Senior Indebtedness, the distribution may be made and the notice given to their
Representative, if any.  Whenever a distribution is to be made or notice is to
be given to holders of the Company's outstanding 9.33% Senior Notes or its 9.35%
Senior Notes, such distribution shall be made and such notice shall be given to
each holder of record of such notes at the address specified in the register of
holders of such notes maintained by the Company.

     Upon any payment or distribution of assets of the Company referred to in
this Article 11, the Trustee and the holders of Convertible Subordinated Notes
shall be entitled to rely conclusively upon any order or decree made by any
court of competent jurisdiction or upon any certificate of any Representative
(as to the Senior Indebtedness for which it is the Representative) or of any
liquidating trustee or agent or an Officers' Certificate (as to any Senior
Indebtedness for which there is no Representative) for the purpose of
ascertaining the persons entitled to participate in such distribution, the
holders of the Senior Indebtedness and other indebtedness

                                       57

 
of the Company, the amount thereof or payable thereon, the amount or amounts
paid or distributed thereon and all other facts pertinent thereto or to this
Article 11.

SECTION 11.11  Rights of the Trustee and Paying Agent.
               -------------------------------------- 

     Notwithstanding any provision of this Article 11 or any other provision of
this Indenture, the Trustee and the Paying Agent shall not at any time be
charged with knowledge of the existence of any facts which would prohibit the
making of any payment or distribution to or by the trustee or a Paying Agent or
the taking of any other action (pursuant to this Article 11) by the Trustee or a
Paying Agent unless and until the Trustee or such Paying Agent, as the case may
be, shall have received at its office specified in Section 10.10 written notice
thereof from the Company, a Representative or a holder of Senior Indebtedness
entitled to give such notice and, prior to the receipt of any such written
notice, the Trustee and such paying Agent shall be entitled in all respects
conclusively to assume that no such fact exists.  The Trustee or the Paying
Agent may continue to make payments on the Convertible Subordinated Notes unless
it receives such a notice at least one business day prior to the date upon which
payment is due.

     The Trustee shall be entitled to rely in good faith on the delivery to it
of a written notice by a Person representing himself, herself or itself to be a
Representative on behalf of a holder of Senior Indebtedness to establish that
such notice has been given by a Representative or a holder of such Senior
Indebtedness.  Only the Company, a Representative or a holder of Senior
Indebtedness that has no Representative may give the notice.

     The Trustee in its individual or any other capacity may hold Senior
Indebtedness with the same rights it would have if it were not the Trustee.  Any
Agent may do the same with like rights.

SECTION 11.12  No Fiduciary Duty to Holders of Senior Indebtedness.
               --------------------------------------------------- 

     With respect to the holders of Senior Indebtedness, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article 11, and no implied covenants or
obligations with respect to the holders of Senior Indebtedness shall be read
into this Indenture against the Trustee or the Paying Agent.  Neither the
Trustee nor the Paying Agent shall be deemed to owe any fiduciary duty to the
holders of such Senior Indebtedness, and the Trustee shall not be liable to any
holder of such Senior Indebtedness if it shall, in the absence of bad faith, pay
over or deliver to holders of Convertible Subordinated Notes, the Company or any
other person monies or assets to which any holder of such Senior Indebtedness
shall be entitled by virtue of this Article 11 or otherwise.

SECTION 11.13  Authorization to Effect Subordination.
               ------------------------------------- 

     Each holder of a Convertible Subordinated Note by its or his acceptance
thereof authorizes and expressly directs the Trustee on its or his behalf to
take such action as may be necessary or appropriate to effect the subordination
provisions contained in this Article 11, and

                                       58

 
appoints the Trustee its or his attorney-in-fact for such purpose, including, in
the event of any liquidation, reorganization or dissolution of the Company,
whether in a bankruptcy, reorganization, insolvency, receivership or similar
proceeding or otherwise, the immediate filing of a claim for the unpaid balance
of its or his Convertible Subordinated Notes in the form required in such
proceeding, and to cause such claim to be approved.  If the Trustee does not
file a proper claim or proof of debt in the form required in such proceeding
prior to 30 days before the expiration of the time to file such claim or claims,
then the holders of any Senior Indebtedness or their Representatives are hereby
authorized to file an appropriate claim for and on behalf of the holders of the
Convertible Subordinated Notes.


                                   ARTICLE 12

                  Conversion of Convertible Subordinated Notes

SECTION 12.01  Conversion Privilege.
               -------------------- 

     Subject to and upon compliance with the provisions of this Article 12, the
holder of any Convertible Subordinated Note shall have the right, at its option,
at any time on or prior to the close of business on May 15, 2004 (or, if such
Note or portion thereof is called for redemption prior to May 15, 2004, then in
respect of such Convertible Subordinated Note or portion thereof, on or prior to
the close of business on the date fixed for redemption, unless the Company shall
default in payment due upon redemption thereof in which case such conversion
right will terminate at the close of business on the date such default is
cured), to convert the principal amount of any such Convertible Subordinated
Note, or any portion of such principal amount which is $1,000 or an integral
multiple thereof, into that number of fully paid and nonassessable whole shares
of Common Stock obtained by dividing the principal amount of the Convertible
Subordinated Note or portion thereof to be converted by the Conversion Price in
effect at such time and by surrender of the Convertible Subordinated Note so to
be converted in whole or in part, such surrender to be made in the manner
provided in Section 12.02.

SECTION 12.02  Manner of Exercise of Conversion Privilege.
               ------------------------------------------ 

     In order to exercise the conversion privilege, the holder of any
Convertible Subordinated Note to be converted in whole or in part shall
surrender such Convertible Subordinated Note, duly endorsed or assigned to the
Company or in blank, at any of the offices or agencies to be maintained for such
purpose by the Company pursuant to Section 4.04, accompanied by the funds, if
any, required by the last paragraph of this Section, and shall give irrevocable
written notice of conversion in the form provided on the Convertible
Subordinated Notes (or such other notice as is acceptable to the Company) to the
Company (a "Conversion Notice") at such office or agency that the holder elects
to convert such Convertible Subordinated Note or the portion thereof specified
in said notice.  Such Conversion Notice shall also state the name or names,
together with the address or addresses, in which the certificate or certificates
for shares of Common Stock which shall be issuable in such conversion shall be
issued.  Each Convertible

                                       59

 
Subordinated Note surrendered for conversion shall, unless the shares issuable
on conversion are to be issued in the same name as the name in which such
Convertible Subordinated Note is registered, be accompanied by instruments of
transfer, in form satisfactory to the Company, duly executed by the holder or
his duly authorized attorney and in amount sufficient to pay any transfer or
similar tax.  As promptly as practicable after the surrender of such Convertible
Subordinated Note and the receipt of such Conversion Notice, instruments of
transfer and funds, if any, as aforesaid, the Company shall issue and shall
deliver at such office or agency to such holder, or on his written order, a
certificate or certificates for the number of full shares of Common Stock
issuable upon the conversion of such Convertible Subordinated Note or portion
thereof in accordance with the provisions of this Article 12 and a check or cash
in respect of any fractional interest in a share of Common Stock arising upon
such conversion, as provided in Section 12.03.  In case any Convertible
Subordinated Note of a denomination greater than $1,000 shall be surrendered for
partial conversion, the Company shall execute and the Trustee shall register or
cause to be registered and shall authenticate and deliver to or upon the order
of the holder of the Convertible Subordinated Note so surrendered at the expense
of the Company, a new Convertible Subordinated Note in authorized denominations
in an aggregate principal amount equal to the unconverted portion of the
surrendered Note.

     Each conversion shall be deemed to have been effected immediately prior to
the close of business on the date on which such Convertible Subordinated shall
have been surrendered and such Conversion Notice (and any applicable instruments
of transfer and any required funds) received by the Company as aforesaid, and
the Person or Persons in whose name or names any certificate or certificates for
shares of Common Stock shall be issuable upon such conversion shall be deemed to
have become the holder or holders of record of the shares represented thereby at
such time on such date and such conversion shall be at the Conversion Price in
effect at such time on such date, unless the stock transfer books of the Company
shall be closed on that date, in which event such Person or Persons shall be
deemed to have become such holder or holders of record at the close of business
on the next succeeding day on which such stock transfer books are open, but such
conversion shall be at the Conversion Price in effect on the date upon which
such Convertible Subordinated Note shall have been surrendered and such
Conversion Notice received by the Company.

     Any Convertible Subordinated Note or portion thereof surrendered for
conversion after the close of business on a Regular Record Date for payment of
interest and before the close of business on the next succeeding Interest
Payment Date (unless such Convertible Subordinated Note or portion thereof being
converted is called for redemption on a redemption date in that period) shall be
accompanied by payment, in funds acceptable to the Company, of an amount equal
to the interest thereon that is to be paid on such Interest Payment Date on the
principal amount being converted; provided, however, that no such payment need
be made if there shall exist at the time of conversion a default in the payment
of interest on the Convertible Subordinated Notes.  An amount equal to such
payment shall be paid by the Company on such Interest Payment Date to the holder
of such Convertible Subordinated Notes at the close of business on such Regular
Record Date; provided, however, that, if the Company shall default in the
payment of interest on such Interest Payment Date, such amount shall be paid to
the

                                       60

 
Person who made such required payment.  Except as provided for above in this
Section, no payments or adjustments shall be made upon conversion on account of
accrued interest on the Convertible Subordinated Notes or for any dividends or
distributions on any shares of Common Stock delivered upon the conversion of
such Convertible Subordinated Notes as provided in this Article.

SECTION 12.03  Cash Payments in Lieu of Fractional Shares.
               ------------------------------------------ 

     No fractional shares or scrip representing fractions of shares of Common
Stock shall be issued upon conversion of the Convertible Subordinated Notes.  If
more than one Convertible Subordinated Note shall be surrendered for conversion
at one time by the same holder, the number of full shares of Common Stock
issuable upon conversion thereof shall be computed on the basis of the aggregate
principal amount of the Convertible Subordinated Notes, or specified portions
thereof to be converted, so surrendered.  Instead of any fractional interest in
a share of Common Stock which would otherwise be deliverable upon the conversion
of any Convertible Subordinated Note or Convertible Subordinated Notes, the
Company shall pay to the holder of such Convertible Subordinated Note an amount
in cash (computed to the nearest cent) equal to the Daily Market Price thereof
at the close of business on the business day next preceding the day of
conversion multiplied by the fractional interest (expressed as a percentage)
that otherwise would have been deliverable to such holder upon such conversion
of the Convertible Subordinated Notes.

SECTION 12.04  Adjustment of Conversion Price.
               ------------------------------ 

     The Conversion Price shall be as specified in the form of Convertible
Subordinated Note set forth in Article 17 thereof subject to adjustment as
provided below.  The Conversion Price shall be adjusted from time to time by the
Company as follows:

          (a) In case the Company, after the date of this Indenture, shall (i)
     pay a dividend or make a distribution on its Common Stock in shares of
     Common Stock, (ii) subdivide its outstanding shares of Common Stock into a
     greater number of shares, (iii) combine its outstanding shares of Common
     Stock into a smaller number of shares, or (iv) issue by reclassification of
     its Common Stock any shares of Capital Stock of the Company, the Conversion
     Price in effect immediately prior to such action shall be adjusted so that
     the holder of any Convertible Subordinated Note thereafter surrendered for
     conversion shall be entitled to receive the number of shares of Common
     Stock or other Capital Stock of the Company that it would have owned or
     been entitled to receive immediately following such action had such
     Convertible Subordinated Note been converted immediately prior to the
     occurrence of such event.  An adjustment made pursuant to this subsection
     (a) shall become effective immediately after the record date, in the case
     of a dividend or distribution, or immediately after the effective date, in
     the case of a subdivision, combination or reclassification.  If, as a
     result of an adjustment made pursuant to this subsection (a), the holder of
     any Convertible Subordinated Note thereafter surrendered for conversion
     shall become entitled to receive shares of two or more classes of Capital

                                       61

 
     Stock or shares of Common Stock and other Capital Stock of the Company, the
     Board of Directors (whose determination shall be conclusive and shall be
     described in a statement filed by the Company with the Trustee and with any
     Conversion Agent as soon as practicable) shall determine the allocation of
     the adjusted Conversion Price between or among shares of such classes of
     Capital Stock or shares of Common Stock and other Capital Stock.

          (b) In case the Company, after the date of this Indenture, shall issue
     rights, warrants or options to all holders of its outstanding shares of
     Common Stock entitling them to subscribe for or purchase shares of Common
     Stock (or securities convertible into Common Stock) at a price per share
     less than the current market price per share (as determined pursuant to
     subsection (h) of this Section 12.04) of the Common Stock, the Conversion
     Price in effect immediately prior thereto shall be adjusted so that it
     shall equal the price determined by multiplying the Conversion Price in
     effect immediately prior to the date of issuance of such rights, warrants
     or options by a fraction of which the numerator shall be the number of
     shares of Common Stock outstanding on the date of issuance of such rights,
     warrants or options (immediately prior to such issuance), plus the number
     of shares of Common Stock which the aggregate offering price of the total
     number of shares of Common Stock so offered for subscription or purchase
     (or the aggregate conversion price of the convertible securities so offered
     for subscription or purchase) would purchase at such current market price,
     and of which the denominator shall be the number of shares of Common Stock
     outstanding on the date of issuance of such rights, warrants or options
     (immediately prior to such issuance) plus the number of additional shares
     of Common Stock so offered for subscription or purchase (or into which the
     convertible securities so offered for subscription or purchase are
     convertible).  Such adjustment shall be made successively whenever any such
     rights, warrants or options are issued, and shall become effective
     immediately after the record date for the determination of stockholders
     entitled to receive such rights, warrants or options.  In determining
     whether any rights, warrants or options entitle the holders to subscribe
     for or purchase shares of Common Stock (or securities convertible into
     Common Stock) at less than such current market price, and in determining
     the aggregate offering price of such shares of Common Stock (or conversion
     price of such convertible securities), there shall be taken into account
     any consideration received by the Company for such rights, warrants or
     options (and for such convertible securities), the value of such
     consideration, if other than cash, to be determined by the Board of
     Directors (whose determination shall be conclusive and shall be described
     in a certificate filed with the Trustee and with any Conversion Agent by
     the Company as soon as practicable).  If at the end of the period during
     which such warrants, rights or options are exercisable not all such
     warrants, rights or options shall have been exercised, the adjusted
     Conversion Price shall be immediately readjusted to what it would have been
     based on the number of additional shares of Common Stock actually issued
     (or the number of shares of Common Stock issuable upon conversion of
     convertible securities actually issued).

                                       62

 
          (c) In case the Company, after the date of this Indenture, shall
     distribute to all or substantially all holders of its outstanding Common
     Stock any shares of Capital Stock (other than Common Stock), evidences of
     its indebtedness or assets (including securities and cash, but excluding
     any cash dividend paid out of current or retained earnings of the Company
     and dividends or distributions payable in stock for which adjustment is
     required pursuant to subsection (a) of this Section 12.04) or rights,
     warrants or options to subscribe for or purchase securities of the Company
     (excluding those referred to in subsection (b) of this Section 12.04), then
     in each such case the Conversion Price shall be adjusted so that the same
     shall equal the price determined by multiplying the Conversion Price in
     effect immediately prior to the record date of such distribution by a
     fraction of which the numerator shall be the current market price per share
     (as determined pursuant to subsection (h) of this Section 12.04) of the
     Common Stock less the fair market value on such record date (as determined
     by the Board of Directors, whose determination shall be conclusive and
     shall be described in a certificate filed with the Trustee and with any
     Conversion Agent by the Company as soon as practicable) of the portion of
     the Capital Stock or the evidences of indebtedness or the assets so
     distributed to the holder of one share of Common Stock or of such
     subscription rights, warrants or options applicable to one share of Common
     Stock and of which the denominator shall be such current market price per
     share of Common Stock.  Such adjustment shall become effective immediately
     after the record date for the determination of stockholders entitled to
     receive such distribution.  In the event of a distribution to all or
     substantially all holders of Common Stock of rights to subscribe for
     additional shares of the Company's Capital Stock (other than those referred
     to in subsection (b) of this Section 12.04), the Company may, instead of
     making an adjustment in the Conversion Price, make proper provision so that
     each holder of a Convertible Subordinate Note who converts such Convertible
     Subordinated Note after the record date for such distribution and prior to
     the expiration or redemption of such rights shall be entitled to receive
     upon such conversion, in addition to shares of Common Stock, an appropriate
     number of such rights.  If at the end of the period during which warrants,
     rights or options described in this subsection (c) are exercisable not all
     such warrants, rights or options shall have been exercised, the adjusted
     Conversion Price shall be immediately readjusted to what it would have been
     based on the number of warrants, rights or options actually exercised.

          (d) Notwithstanding anything in subsection (b) or (c) of this Section
     12.04 to the contrary, with respect to any rights, warrants or options
     covered by subsection (b) or (c) of this Section 12.04, if such rights,
     warrants or options are only exercisable upon the occurrence of certain
     triggering events, then for purposes of this Section 12.04 such rights,
     warrants or options shall not be deemed issued or distributed, and any
     adjustment to the Conversion Price required by subsection (b) or (c) of
     this Section 12.04 shall not be made until such triggering events occur and
     such rights, warrants or options become exercisable.

          (e) In case the Company, after the date of this Indenture, shall issue
     to an Affiliate shares of its Common Stock (excluding those rights,
     warrants, options, shares

                                       63

 
     of Capital Stock or evidences of its indebtedness or assets referred to in
     subsection (b) or (c) to this Section 12.04) at a net price per share less
     than the current market price per share (as determined pursuant to
     subsection (h) of this Section 12.04) on the date the Company fixes the
     offering price of such additional shares, the Conversion Price shall be
     reduced immediately thereafter so that it shall equal the price determined
     by multiplying such Conversion Price in effect immediately prior thereto by
     a fraction of which the numerator shall be the number of shares of Common
     Stock outstanding immediately prior to the issuance of such additional
     shares plus the number of shares of Common Stock which the aggregate
     offering price of the total number of shares of Common Stock so offered
     would purchase at the current market price and the denominator shall be the
     number of shares of Common Stock that would be outstanding immediately
     after the issuance of such additional shares.  Such adjustment shall be
     made successively whenever such an issuance is made.  This subsection (e)
     shall not apply to Common Stock issued to any Affiliate under a bona fide
     employee or director benefit plan or agreement adopted by the Company or
     any subsidiary thereof and approved by either the stockholders of the
     Company or a majority of the Company's outside directors.

          (f) In case the Company, after the date of this Indenture, shall, by
     dividend or otherwise, at any time distribute to all holders of its Common
     Stock cash (including any cash that is distributed as part of a
     distribution referred to in subsection (c) of this Section) in an aggregate
     amount that, together with (i) the aggregate amount of any other
     distributions to all holders of its Common Stock made exclusively in cash
     within the 12 months preceding the date fixed for determining the
     stockholders entitled to such distribution and in respect of which no
     Conversion Price adjustment pursuant to this subsection (f) has been made
     and (ii) the aggregate of any cash plus the fair market value (as
     determined by the Board of Directors, whose determination shall be
     conclusive and described in a Board Resolution), as of such date of
     determination, of consideration payable in respect of any tender offer by
     the Company or a subsidiary for all or any portion of the Common Stock
     consummated within 12 months preceding the date fixed for determining the
     stockholders entitled to such distribution and in respect of which no
     Conversion Price adjustment pursuant to subsection (g) of this Section has
     been made, exceeds 15% of the product of the current market price per share
     (determined as provided in subsection (h) of this Section) on the date
     fixed for the determination of stockholders entitled to receive such
     distribution times the number of shares of Common Stock outstanding on such
     date, the Conversion Price shall be reduced by multiplying such Conversion
     Price by a fraction of which the numerator shall be the current market
     price per share (determined as provided in subsection (h) of this Section)
     on the date fixed for such determination less the amount of cash so
     distributed at such time applicable to one share of Common Stock and the
     denominator shall be such current market price, such reduction to become
     effective immediately prior to the opening of business on the date after
     the date fixed for such determination.

          (g) In case a tender offer made by the Company or any subsidiary,
     after the date of this Indenture, for all or any portion of the Common
     Stock shall be consummated and

                                       64

 
     such tender offer shall involve an aggregate consideration having a fair
     market value (as determined by the Board of Directors, whose determination
     shall be conclusive and described in a Board Resolution) as of the last
     time (the "Expiration Time") that tenders may be made pursuant to such
     tender offer (as it may be amended) that, together with (i) aggregate of
     the cash plus the fair market value (as determined by the Board of
     Directors, whose determination shall be conclusive and described in a Board
     Resolution), as of the consummation of such tender offer, of other
     consideration paid or payable in respect of any tender offer by the Company
     or a subsidiary for all or any portion of the Common Stock consummated
     within the 12 months preceding the consummation of such tender offer and in
     respect of which no Conversion Price adjustment pursuant to this subsection
     (g) has been made and  (ii) the aggregate amount of any distributions to
     all holders of Common Stock made exclusively in cash within the 12 months
     preceding the consummation of such tender offer and in respect of which no
     Conversion Price adjustment pursuant to subsection (f) of this Section has
     been made, exceeds 15% of the product of the current market price per share
     (determined as provided in subsection (h) of this Section) immediately
     prior to the Expiration Time times the number of shares of Common Stock
     outstanding (including any tendered shares) at the Expiration Time, the
     Conversion Price shall be reduced by multiplying the Conversion Price in
     effect immediately prior to the Expiration Time by a fraction of which the
     numerator shall be (i) the product of the current market price per share
     (determined as provided in subsection (h) of this Section) immediately
     prior to the Expiration Time times the number of shares of Common Stock
     outstanding (including any tendered shares) at the Expiration Time minus
     (ii) the fair market value (determined as aforesaid) of the aggregate
     consideration payable to stockholders upon consummation of such tender
     offer (the shares accepted for payment in the tender offer being referred
     to as the "Purchased Shares") and the denominator shall be the product of
     (x) such current market price per share times (y) such number of
     outstanding shares at the Expiration Time minus the number of Purchased
     Shares, such reduction to become effective immediately prior to the opening
     of business on the day following the Expiration Time; provided that if the
     number of Purchased Shares or the aggregate consideration payable therefor
     have not been finally determined by such opening of business, the
     adjustment required by this subsection (g) shall, pending such final
     determination, be made based upon the preliminary announced results of such
     tender offer, and, after such final determination shall have been made, the
     adjustment required by this subsection (g) shall be made based upon the
     number of Purchased Shares and the aggregate consideration payable therefor
     as so finally determined.

          (h) For the purpose of any computation under subsections (b) through
     (g) of this Section 12.04, the current market price per share of Common
     Stock on any date shall be deemed to be the average of the Daily Market
     Prices for the shorter of (i) 30 consecutive business days ending on the
     last full trading day on the exchange or market referred to in determining
     such Daily Market Prices prior to the Time of Determination or (ii) the
     period commencing on the date next succeeding the first public announcement
     of the

                                       65

 
     issuance of such rights or warrants or such distribution through such last
     full trading day prior to the Time of Determination.

          (i) In any case in which this Section 12.04 shall require that an
     adjustment be made immediately following a record date or an effective
     date, the Company may elect to defer (but only until five business days
     following the filing by the Company with the Trustee and any Conversion
     Agent of the certificate required by subsection (k) of this Section 12.04)
     issuing to the holder of any Convertible Subordinated Note converted after
     such record date or effective date the shares of Common Stock issuable upon
     such conversion over and above the shares of Common Stock issuable upon
     such conversion on the basis of the Conversion Price prior to adjustment,
     and paying to such holder any amount of cash in lieu of a fractional share.

          (j) No adjustment in the Conversion Price shall be required to be made
     unless such adjustment would require an increase or decrease of at least 1%
     in such price; provided, however, that any adjustments which by reason of
     this subsection (j) are not required to be made shall be carried forward
     and taken into account in any subsequent adjustment.  All calculations
     under this Section 12.04 shall be made to the nearest cent or to the
     nearest 1/100th of a share, as the case may be.  No adjustment to the
     Conversion Price need be made if only the par value of the Common Stock is
     changed (including any change to no par value Common Stock).  To the extent
     that the Notes become convertible into cash, no adjustment need be made
     thereafter as to such cash and interest will not accrue on such cash.
     Anything in this Section 12.04 to the contrary notwithstanding, the Company
     shall be entitled to make such reduction in the Conversion Price, in
     addition to those required by this Section 12.04, as it in its discretion
     shall determine to be advisable in order that any stock dividend,
     subdivision of shares, distribution of rights to purchase stock or
     securities, or distribution of securities convertible into or exchangeable
     for stock hereafter made by the Company to its stockholders shall not be
     taxable to the recipients.

          (k) Whenever the Conversion Price is adjusted as herein provided, (i)
     the Company shall promptly file with the Trustee and any Conversion Agent
     other than the Trustee a certificate signed by the President, any Vice
     President or the Treasurer of the Company setting forth the Conversion
     Price after such adjustment and setting forth a brief statement of the
     facts requiring such adjustment and the manner of computing the same, which
     certificate shall be conclusive evidence of the correctness of such
     adjustment, and (ii) a notice stating that the Conversion Price has been
     adjusted and setting forth the adjusted Conversion Price shall forthwith be
     given by the Company to the holders of Convertible Subordinated Notes in
     the manner provided in Section 10.02.  The Company may correct any previous
     certificate and notice given pursuant to this subsection (k) by (i)
     promptly filing with the Trustee and any Conversion Agent other than the
     Trustee a new certificate in the form required by this subsection (k) and
     (ii) giving a new notice to the holders of Convertible Subordinated Notes
     in the form and manner required by this subsection (k).  Such new
     certificate and notice shall state that

                                       66

 
     such certificate and notice are being provided to correct the previous
     certificate and notice.  Except as otherwise provided in Section 7.01,
     neither the Trustee nor any Conversion Agent shall be under any duty or
     responsibility with respect to the certificate required by this subsection
     (k) except to exhibit the same to any holder of Convertible Subordinated
     Notes who requests to inspect it.  The certificate required by this
     subsection (k) shall be filed at each office or agency maintained for the
     purposes of conversion of Notes pursuant to Section 2.03.

          (l) In the event that at any time, as a result of an adjustment made
     pursuant to subsection (a) of this Section 12.04, the holder of any
     Convertible Subordinated Note thereafter surrendered for conversion shall
     become entitled to receive any shares of the Company other than shares of
     Common Stock, thereafter the Conversion Price of such other shares so
     receivable upon conversion of any Note shall be subject to adjustment from
     time to time in a manner and on terms as nearly equivalent as practicable
     to the provisions with respect to Common Stock contained in this Article 12
     and the other provisions of this Article 12 applicable to Common Stock
     shall apply to such other shares.

SECTION 12.05  Notice to Holders Prior to Certain Corporate Actions.
               ---------------------------------------------------- 

     In case:

          (a) the Company shall take any action that would require an adjustment
     in the Conversion Price pursuant to Section 12.04(c); or

          (b) the Company shall authorize the granting to the holders of its
     Common Stock generally of rights, warrants or options to subscribe for or
     purchase any shares of stock of any class or of any other rights (other
     than employee or director stock options); or

          (c) there shall be any reorganization or reclassification of the
     Common Stock (other than a subdivision or combination of the outstanding
     Common Stock and other than a change in the par value of the Common Stock),
     or any consolidation or merger to which the Company is a party, or any
     conveyance, transfer, sale or lease of the Company's properties and assets
     as, or substantially as, an entirety; or

          (d) there shall be a voluntary or involuntary dissolution, liquidation
     or winding up of the Company;

then the Company shall cause to be filed with the Trustee and any Conversion
Agent, and shall cause to be given to the holders of Convertible Subordinated
Notes, in the manner provided in Section 10.02, as promptly as possible, but in
any event at least 10 days prior to the applicable date hereinafter specified, a
notice stating (i) the date on which a record is to be taken for the purpose of
such dividend, or distribution or rights or warrants, or, if a record is not to
be taken, the date as of which the holders of Common Stock of record to be
entitled to such distribution

                                       67

 
or rights are to be determined, or (ii) the date on which such reorganization,
reclassification, consolidation, merger, conveyance, transfer, sale, lease,
dissolution, liquidation or winding up is expected to become effective or occur,
and, if applicable, the date as of which it is expected that holders of Common
Stock of record shall be entitled to exchange their shares of Common Stock for
securities, cash or other property deliverable upon such reorganization,
reclassification, consolidation, merger, conveyance, transfer, sale, lease,
liquidation or winding up.  Failure to give such notice or any defect therein
shall not affect the legality or validity of the proceedings described in
subsection (a), (b), (c) or (d) of this Section 12.05.

SECTION 12.06  Reservation of Shares of Common Stock.
               ------------------------------------- 

     The Company shall at all times reserve and keep available, free from
preemptive rights, out of the aggregate of its authorized but unissued shares of
Common Stock or its issued shares of Common Stock held in its treasury, or both,
for the purpose of effecting conversions of Convertible Subordinated Notes, the
full number of shares of Common Stock deliverable upon the conversion of all
outstanding Notes not theretofore converted.

     Before taking any action that would cause an adjustment reducing the
Conversion Price below the then par value (if any) of the shares of Common Stock
deliverable upon conversion of the Convertible Subordinated Notes, the Company
shall take any corporate action which may, in the opinion of its counsel, be
necessary in order that the Company may validly and legally issue fully paid and
nonassessable shares of Common Stock at such adjusted Conversion Price.

SECTION 12.07  Taxes upon Conversion.
               --------------------- 

     The Company shall pay any and all documentary, stamp or similar issue or
transfer taxes payable in respect of the issue or delivery of shares of Common
Stock on conversions of Notes pursuant hereto; provided, however, that the
Company shall not be required to pay any tax which may be payable in respect of
any transfer involved in the issue or delivery of shares of Common Stock in a
name other than that of the holder of the Convertible Subordinated Note or
Convertible Subordinated Notes to be converted and no such issue or delivery
shall be made unless and until the Person requesting such issue or delivery has
paid to the Company the amount of any such tax or has established to the
satisfaction of the Company that such tax has been paid.

SECTION 12.08  Covenants as to Common Stock.
               ---------------------------- 

     The Company covenants that all shares of Common Stock which may be
delivered upon conversions of Convertible Subordinated Notes will upon delivery
be duly and validly issued and fully paid and nonassessable, free of all Liens
and charges and not subject to any preemptive rights.

                                       68

 
     The Company further covenants that, for so long as the Common Stock shall
be listed on the New York Stock Exchange or any other national securities
exchange, the Company will, if permitted by the rules of such exchange, list and
keep listed all Common Stock issuable upon conversion of the Convertible
Subordinated Notes.

SECTION 12.09  Consolidation or Merger or Sale of Assets.
               ----------------------------------------- 

     Notwithstanding any other provision herein to the contrary, in case of any
consolidation or merger to which the Company is a party (other than a merger or
consolidation which does not result in any reclassification, conversion,
exchange or cancellation of the outstanding shares of Common Stock of the
Company), or in case of any conveyance, transfer, sale or lease to another
corporation of the properties and assets of the Company as, or substantially as,
an entirety, the corporation formed by such consolidation, or the corporation
whose securities, cash or other property will immediately after the merger or
consolidation be owned, by virtue of the merger or consolidation, by the holders
of Common Stock of the Company immediately prior to the merger or the
corporation which shall have acquired such properties and assets of the Company,
as the case may be, shall promptly execute and deliver to the Trustee a
supplemental indenture providing that the holder of each Convertible
Subordinated Note then outstanding shall have the right thereafter to convert
such Note, during the period such Note is convertible as specified in this
Article 12, into the kind and amount of securities, cash or other property
receivable upon such consolidation, merger, conveyance, transfer, sale or lease
by a holder of the number of shares of Common Stock into which such Note might
have been converted immediately prior to such consolidation, merger, conveyance,
transfer, sale or lease, assuming such holder of Common Stock (i) is not a
Person with which the Company consolidated or into which the Company merged or
was merged or to which such conveyance, transfer, sale or lease was made or an
Affiliate of such Person and (ii) did not exercise statutory rights of election,
if any, as to the kind or amount of securities, cash or other property
receivable upon such consolidation, merger, conveyance, transfer, sale or lease
(provided that if the kind or amount of securities, cash or other property
receivable upon such consolidation, merger, conveyance, transfer, sale or lease
is not the same for each share of Common Stock in respect of which such rights
of election shall not have been exercised ("non-electing share"), then for the
purposes of this Section 12.09 the kind and amount of securities, cash or other
property receivable upon such consolidation, merger, conveyance, transfer, sale
or lease for each non-electing share shall be deemed to be the kind and amount
so receivable per share by the holders of a plurality of the non-electing
shares).  Such supplemental indenture shall provide for adjustments which, for
events subsequent to the effective date of such supplemental indenture, shall be
as nearly equivalent as may be practicable to the adjustments provided for in
this Article 12 in relation to any shares of stock or other securities or
property thereafter deliverable on the conversion of the Notes.

     The above provisions of this Section 12.09 shall similarly apply to
successive consolidations, mergers, conveyances, transfers, sales or leases.

                                       69

 
     The Company shall give notice of the execution of such a supplemental
indenture to the holders of Convertible Subordinated Notes in the manner
provided in Section 10.02 within 30 days after the execution thereof; provided,
however, that such notice need not be given if such information has been
provided prospectively in the notice given pursuant to Section 12.05.  Failure
to give such notice, or any defects therein, shall not affect the legality or
validity of any such supplemental indenture or any transaction contemplated in
this Section 12.09.

SECTION 12.10  Disclaimer of Responsibility for Certain Matters.
               ------------------------------------------------ 

     Neither the Trustee nor any Conversion Agent shall at any time be under any
duty or responsibility to any holder of Convertible Subordinated Notes to
determine whether any facts exist which may require any adjustment of the
Conversion Price, or with respect to the nature or extent of any such adjustment
when made, or with respect to the method employed, or herein or in any
supplemental indenture provided to be employed, in making the same.  Neither the
Trustee nor any Conversion Agent shall be accountable with respect to the
listing or registration referred to in Section 12.08 or the validity or value
(or the kind or amount) of any shares of Common Stock, or of any securities,
cash or other property, which may at any time be issued or delivered upon the
conversion of any Note; and neither the Trustee nor any Conversion Agent makes
any representation with respect thereto.  Neither the Trustee nor any Conversion
Agent shall be responsible for any failure of the Company to issue, transfer or
deliver any shares of Common Stock or stock certificates or other securities or
property or to make any cash payment upon the surrender of any Note for the
purpose of conversion or, subject to the provisions of Section 7.01, to comply
with any of the covenants of the Company contained in this  Article 12.

SECTION 12.11  Cancellation of Converted Notes.
               ------------------------------- 

     All Notes delivered for conversion shall be delivered to the Trustee to be
cancelled by or at the direction of the Trustee, which shall dispose of the same
as provided in Section 2.11.

SECTION 12.12  Voluntary Reduction.
               ------------------- 

     The Company from time to time may reduce the Conversion Price by any amount
for any period of time if the period is at least 20 days or such longer period
as may be required by law and if the reduction is irrevocable during such
period.

                                       70

 
     IN WITNESS WHEREOF, the parties have caused this Indenture to be duly
executed and attested, all as of the date first above written, signifying their
agreements contained in this Indenture.

                              ROHR, INC.


                              By:  /s/ A.L. Majors
                                   ---------------
                                    Name: A.L. Majors
                                          -----------
                                    Title: Vice President and Chief Accounting
                                           ----------------------------------- 
                                              Officer
                                              -------

Attest:

/s/ R.W. Madsen
- - ---------------
 Secretary

                              THE BANK OF NEW YORK


                              By:  /s/ Robert F. McIntyre
                                   ----------------------
                                    Name: Robert F. McIntyre
                                          ------------------
                                    Title: Assistant Vice President
                                           ------------------------

Attest:

/s/ DML
- - -------

                                      S-1

 
                                   EXHIBIT A

                               (Face of Security)

No.  _____________                                            $ ________________

                                                               CUSIP 775416 AD 2
                                   ROHR, INC.

                 7 3/4% CONVERTIBLE SUBORDINATED NOTE DUE 2004

promises to pay to

or registered assigns,

the principal sum of                                    Dollars on May 15, 2004

Interest Payment Dates:   May 15 and November 15

 Regular Record Dates:   May 1 and November 1


Certificate of Authentication

This is one of the Convertible Subordinated Notes
described in the within-mentioned Indenture.

THE BANK OF NEW YORK
as Trustee
                                     ROHR, INC.



By                                   By
  --------------------------------     ---------------------------------------
     Authorized Signatory               President and Chief Executive Officer


Dated:

                                     By
                                       ---------------------------------------
                                                      Secretary

                                    (SEAL)

                                      A-1

 
                               (Back of Security)


                                   ROHR, INC.

                 7 3/4% CONVERTIBLE SUBORDINATED NOTE DUE 2004

     1.   INTEREST.  Rohr, Inc., a Delaware corporation (the "Company"),
promises to pay interest on the principal amount of this Convertible
Subordinated Note at the rate per annum shown above.  The Company will pay
interest semiannually on May 15 and November 15 of each year.  Interest on the
Convertible Subordinated Notes will accrue from the most recent date to which
interest has been paid or, if no interest has been paid, from May 19, 1994.
Interest will be computed on the basis of a 360-day year of twelve 30-day
months.

     2.   METHOD OF PAYMENT.  The Company will pay interest on the Convertible
Subordinated Notes (except defaulted interest) to the person in whose name each
Convertible Subordinated Note is registered at the close of business on the May
1 or November 1 immediately preceding the relevant interest payment date (each a
"Regular Record Date") even though Convertible Subordinated Notes are cancelled
after the record date and on or before the interest payment date.  Holders must
surrender Convertible Subordinated Notes to a Paying Agent to collect principal
payments.  The Company will pay principal and interest in money of the United
States that at the time of payment is legal tender for payment of public and
private debts.  However, the Company may pay principal and interest by check
payable in such money, and may mail such check to the holder's registered
address.

     3.   PAYING AGENT AND REGISTRAR.  The Bank of New York, a New York State
banking corporation (together with any successor Trustee under the Indenture
referred to below, the "Trustee"), will act as Paying Agent and Registrar.  The
Company may change the Paying Agent, Registrar or co-registrar without prior
notice.  Subject to certain limitations in the Indenture, the Company or any of
its subsidiaries may act in any such capacity.

     4. INDENTURE. The Company issued the Convertible Subordinated Notes under
an Indenture dated as of May 15, 1994 (the "Indenture") between the Company and
the Trustee. The terms of the Convertible Subordinated Notes include those
stated in the Indenture and those made part of the Indenture by reference to the
Trust Indenture Act of 1939 (15 U.S. Code (S) (S) 77aaa-77bbbb) as in effect on
the date of the Indenture. The Convertible Subordinated Notes are subject to,
and qualified by, all such terms, certain of which are summarized hereon, and
holders are referred to the Indenture and such Act for a statement of such
terms. The Convertible Subordinated Notes are unsecured general obligations of
the Company limited to (except as otherwise provided in the Indenture) up to
$50,000,000 in aggregate principal amount, unless an election has been made as
set forth in Article 2 of the Indenture to increase such aggregate principal
amount by an amount not to exceed $7,500,000. Capitalized terms not defined
below have the same meaning as is given to them in the Indenture.

                                      A-2

 
     5.   OPTIONAL REDEMPTION.  The Company may redeem the Convertible
Subordinated Notes, in whole or in part, prior to maturity at any time on or
after May 15, 1998 at the following redemption prices (expressed as percentages
of the principal amount), plus accrued and unpaid interest to the date fixed for
redemption, if redeemed during the twelve-month period beginning May 15 of each
year indicated below:



 
                                                      Redemption
          Year                                          Price
          ----                                        ----------
                                                   
          1998...................................      104.650%
          1999...................................      103.875%
          2000...................................      103.100%
          2001...................................      102.325%
          2002...................................      101.550%
          2003...................................      100.775%
          2004...................................      100.000%


     6. NOTICE OF REDEMPTION. Notice of redemption will be mailed at least 30
days but not more than 60 days before the date fixed for redemption to each
holder of Convertible Subordinated Notes to be redeemed at his or her registered
address. Convertible Subordinated Notes in denominations larger than $1,000 may
be redeemed in part but only in whole multiples of $1,000. In the event of a
redemption of less than all of the Convertible Subordinated Notes, the
Convertible Subordinated Notes will be chosen for redemption by the Trustee by
lot or pro rata or, if required, in compliance with the requirements of the
principal national securities exchange, if any, on which the Convertible
Subordinated Notes are listed. On and after the redemption date interest ceases
to accrue on Convertible Subordinated Notes or portions of them called for
redemption (unless the Company defaults in the payment of the redemption price).
If this Convertible Subordinated Note is redeemed subsequent to a record date
with respect to any interest payment date specified above and on or prior to
such interest payment date, then any accrued interest will be paid to the person
in whose name this Convertible Subordinated Note is registered at the close of
business on such record date.

     7. CHANGE OF CONTROL. Upon a Change of Control, the Company shall make a
Change of Control Offer to purchase all outstanding securities at a price equal
to 101% of the aggregate principal amount of the Convertible Subordinated Notes,
plus accrued and unpaid interest to the date of purchase, such offer to be made
as provided in the Indenture. To accept the Change of Control Offer, the holder
hereof must comply with the terms thereof, including surrendering this
Convertible Subordinated Note, with the "Option of Holder to Elect Purchase"
portion hereof completed, to the Company, a depositary, if appointed by the
Company, or a Paying Agent, at the address specified in the notice of the Change
of Control Offer mailed to holders as provided in the Indenture, prior to
termination of the Change of Control Offer.

                                      A-3

 
     8. SUBORDINATION. To the extent set forth in Article 11 of the Indenture
the Convertible Subordinated Notes are subordinated to Senior Indebtedness.
Senior Indebtedness shall not include (a) any indebtedness of the Company to any
of its subsidiaries, (b) Capitalized Lease Obligations, (c) indebtedness or
other obligations in respect of the Pooling and Servicing Agreement, (d) the
Company's 9.25% Subordinated Debentures due 2017 and its 7% Convertible
Subordinated Debentures due 2012, and (e) with respect to an obligation relating
to the deferred purchase price of property or services, any advances, deposits,
partial or progress payments, payables, unpaid wages and related employee
obligations, trade accounts and accrued liabilities. To the extent provided in
the Indenture, Senior Indebtedness must be paid before the Convertible
Subordinated Notes may be paid. The Company agrees, and each holder by accepting
a Convertible Subordinated Note agrees, to the subordination and authorizes the
Trustee to give it effect.

     9. DENOMINATIONS, TRANSFER, EXCHANGE. The Convertible Subordinated Notes
are in registered form without coupons in denominations of $1,000 and integral
multiples of $1,000. The transfer of Convertible Subordinated Notes may be
registered and Convertible Subordinated Notes may be exchanged as provided in
the Indenture. As a condition of transfer, the Registrar may require a holder,
among other things, to furnish appropriate endorsements and transfer documents
and the Company may require a holder to pay any taxes and fees required by law
or permitted by the Indenture. The Registrar need not exchange or register the
transfer of any Convertible Subordinated Note or portion of a Convertible
Subordinated Note selected for redemption. Also, it need not exchange or
register the transfer of any Convertible Subordinated Note for a period of 15
days before a selection of Convertible Subordinated Notes to be redeemed.

     10. PERSONS DEEMED OWNERS. The registered holder of a Convertible
Subordinated Note may be treated as its owner for all purposes.

     11. AMENDMENTS AND WAIVERS. Subject to certain exceptions, the Indenture or
the Convertible Subordinated Notes may be amended with the consent of the
holders of at least a majority in principal amount of the then outstanding
Convertible Subordinated Notes and any existing default may be waived with the
consent of the holders of a majority in principal amount of the then outstanding
Convertible Subordinated Notes. Without the consent of any holder, the Indenture
or the Convertible Subordinated Notes may be amended to: add to the covenants of
the Company for the benefit of the holders of Convertible Subordinated Notes;
surrender any right or power conferred upon the Company; provide for conversion
rights of holders of Convertible Subordinated Notes in the event of
consolidation, merger or sale of all or substantially all of the assets of the
Company; evidence the succession of another person to the Company and the
assumption by such successor of the covenants and obligations of the Company
thereunder and in the Convertible Subordinated Notes as permitted by the
Indenture; reduce the Conversion Price, provided that such reduction will not
adversely affect the interest of holders of Convertible Subordinated Notes in
any material respect; cure any ambiguity or correct or supplement any defective
provision contained in the Indenture, or make any other change in the provisions
of the Indenture which the Company and the Trustee may deem

                                      A-4

 
necessary or desirable and which will not adversely affect the interest of the
holders of Convertible Subordinated Notes.

     12. DEFAULTS AND REMEDIES. An Event of Default is: default for 30 days in
payment of interest on the Convertible Subordinated Notes; default in payment of
principal of or premium, if any, on the Convertible Subordinated Notes; failure
by the Company to comply with certain covenants of the Indenture upon the
receipt of written notice of such default as set forth in the Indenture; failure
by the Company for 60 days after notice to it to comply with any of its other
agreements in the Indenture or the Convertible Subordinated Notes; certain
defaults under and accelerations prior to maturity of certain indebtedness;
certain final judgments which remain undischarged; and certain events of
bankruptcy or insolvency. If an Event of Default occurs and is continuing, the
Trustee or the holders of at least 25% in principal amount of the then
outstanding Convertible Subordinated Notes may declare all the Convertible
Subordinated Notes to be due and payable immediately, except that in the case of
an Event of Default arising from certain events of bankruptcy or insolvency, all
outstanding Convertible Subordinated Notes become due and payable without
further action or notice. Holders may not enforce the Indenture or the
Convertible Subordinated Notes except as provided in the Indenture. The Trustee
may require an indemnity satisfactory to it before it enforces the Indenture or
the Convertible Subordinated Notes. Subject to certain limitations, holders of a
majority in principal amount of the then outstanding Convertible Subordinated
Notes may direct the Trustee in its exercise of any trust or power. The Trustee
may withhold from holders notice of any continuing default (except a default in
payment of principal or interest) if it determines that withholding notice is in
their interests. The Company must furnish quarterly compliance certificates to
the Trustee.

     13. TRUSTEE DEALINGS WITH THE COMPANY. The Trustee or any of its
Affiliates, in their individual or any other capacities, may make or continue
loans to or guaranteed by, accept deposits from and perform services for the
Company or its Affiliates and may otherwise deal with the Company or its
Affiliates as if it were not Trustee.

     14. NO RECOURSE AGAINST OTHERS. No director, officer, employee or
stockholder, as such, of the Company shall have any liability for any
obligations of the Company under the Convertible Subordinated Notes or the
Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation. Each holder by accepting a Convertible
Subordinated Note waives and releases all such liability. The waiver and release
are part of the consideration for the Convertible Subordinated Notes.

     15. AUTHENTICATION. This Convertible Subordinated Note shall not be valid
until authenticated by the manual signature of the Trustee or an authenticating
agent.

     16. ABBREVIATIONS. Customary abbreviations may be used in the name of a
holder or an assignee, such as: TEN CO = tenants in common, TEN ENT = tenants by
the entireties, JT TEN = joint tenants with right of survivorship and not as
tenants in common, CUST = Custodian and U/G/M/A = Uniform Gifts to Minors Act.

                                      A-5

 
     17. CONVERSIONS. Subject to and upon compliance with the provisions of the
Indenture, the registered holder of this Note has the right, at its option, at
any time or prior to the close of business on May 15, 2004 (or in case this
Convertible Subordinated Note or any portion hereof shall be called for
redemption prior to such date, then on or prior to the close of business on the
date fixed for redemption), to convert the principal amount hereof, or any
portion of such principal amount which is $1,000 or an integral multiple
thereof, into that number of fully paid and nonassessable whole shares of common
stock of the Company ("Common Stock") obtained by dividing the principal amount
of the Convertible Subordinated Note or portion thereof to be converted by the
conversion price of $10.35 per share, or the conversion price as adjusted from
time to time as provided in the Indenture, upon surrender of this Convertible
Subordinated Note to the Company at the office or agency maintained for such
purpose in New York, New York (and at such other offices or agencies designated
for such purpose by the Company), accompanied by written notice of conversion
duly executed and (if the shares of Common Stock to be issued on conversion are
to be issued in any name other than that of the registered holder of this
Convertible Subordinated Note) by instruments of transfer, in form satisfactory
to the Company, duly executed by the registered holder or its duly authorized
attorney and, in case such surrender shall be made during the period starting
after the close of business on the Regular Record Date immediately preceding any
Interest Payment Date through the close of business on such Interest Payment
Date (unless this Note or the portion thereof being converted is subject to
redemption on a redemption date in that period), also accompanied by payment in
funds acceptable to the Company of an amount equal to the interest otherwise
payable on such Interest Payment Date on the principal amount of this Note then
being converted. Subject to the aforesaid requirement for a payment in the event
of conversion after the close of business on a Regular Record Date immediately
preceding an Interest Payment Date, no payment or adjustment shall be made on
conversion for interest accrued hereon or for dividends on Common Stock
delivered on conversion. The right to convert this Note is subject to the
provisions of the Indenture relating to conversion rights in the case of certain
consolidations, mergers, or sales or transfers of substantially all the
Company's assets.

     The Company shall not issue fractional shares or scrip representing
fractions of shares of Common Stock upon any such conversion, but shall make an
adjustment therefor in cash on the basis of the then current market value of
such fractional interest as provided in the Indenture.

     The Company will furnish to any holder upon written request and without
charge a copy of the Indenture. Requests may be made to: General Counsel, Rohr,
Inc., 850 Lagoon Drive, Chula Vista, California 91910.

                                      A-6

 
                           FORM OF CONVERSION NOTICE

To:  ROHR, INC.

     The undersigned registered owner of the Convertible Subordinated Note
hereby irrevocably exercises the option to convert this Convertible Subordinated
Note, or portion hereof (which is $1,000 or an integral multiple thereof) below
designated, into shares of Common Stock of Rohr, Inc. in accordance with the
terms of the Indenture referred to in this Convertible Subordinated Note, and
directs that the shares issuable and deliverable upon the conversion, together
with any check in payment for fractional shares and Convertible Subordinated
Notes representing any unconverted principal amount hereof, be issued and
delivered to the registered holder hereof unless a different name has been
indicated below. If shares or any portion of this Convertible Subordinated Note
not converted are to be issued in the name of a person other than the
undersigned, the undersigned will pay all transfer taxes payable with respect
thereto. Any amount required to be paid by the undersigned on account of
interest and taxes accompanies this Convertible Subordinated Note.

Dated:                                   _______________________________________

Fill in for registration of shares if    _______________________________________
to be delivered, and Notes if to         Signature(s)
be issued, other than to and in
the name of the registered holder        Principal amount to be converted
(Please Print):                            (if less than all):
                                                           $   ,000

                                         _______________________________________
                                         Social Security or other Tax-
                                         payer Identification Number

__________________________________
              (Name)

__________________________________
        (Street Address)

__________________________________ 
    (City, State and zip code)

Signature Guarantee:

__________________________________

                                      A-7

 
ASSIGNMENT FORM

     If you the holder want to assign this Convertible Subordinated Note, fill
in the form below and have your signature guaranteed:

I or we assign and transfer this Convertible Subordinated Note to ______________
________________________________________________________________________________


(Insert assignee's social security or tax ID number) ___________________________

________________________________________________________________________________
________________________________________________________________________________
             (Print or type assignee's name, address and zip code)

and irrevocably appoint_________________________________________________agent to
transfer this Convertible Subordinated Note on the books of the Company.  The
agent may substitute another to act for him.


Date: __________________     Your Signature:____________________________________
                                 (Sign exactly as your name appears on the other
                                   side of this Convertible Subordinated Note)

Signature Guarantee: ___________________________________________________________

                                      A-8

 
                       OPTION OF HOLDER TO ELECT PURCHASE

     If you wish to have this Convertible Subordinated Note purchased by the
Company pursuant to Sections 4.05 or 4.08 of the Indenture, check the Box:

     If you wish to have a portion of this Convertible Subordinated Note
purchased by the Company pursuant to Section 4.05 or 4.08 of the Indenture,
state the amount (in multiples of $1,000): $_______________

Date: ___________________    Your Signature:____________________________________
                                 (Sign exactly as your name appears on the other
                                   side of this Convertible Subordinated Note)

Signature Guarantee:  __________________________________________________________

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