CUSIP NO.                                                       PRINCIPAL AMOUNT
Registered
No. FX-


                         UNITED TECHNOLOGIES CORPORATION
                           MEDIUM-TERM NOTE, SERIES B
                                  (FIXED RATE)

             Due from Nine Months to Thirty Years from Date of Issue

        If the  registered  owner of this Security (as  indicated  below) is The
Depository Trust Company (the "Depository") or a nominee of the Depository, this
Security is a Global  Security and the following  legend is  applicable:  Unless
this certificate is presented by an authorized  representative of The Depository
Trust Company (55 Water Street,  New York,  New York) to the issuer or its agent
for registration of transfer, exchange or payment, and any certificate issued is
registered  in the name of CEDE & CO.,  or such  other name as  requested  by an
authorized  representative  of The Depository Trust Company,  and any payment is
made to CEDE & CO.,  ANY  TRANSFER,  PLEDGE  OR OTHER  USE  HEREOF  FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL  since the  registered  owner  hereof,
CEDE & CO., has an interest herein.

IF  APPLICABLE,  THE "TOTAL  AMOUNT OF OID," "YIELD TO  MATURITY,"  AND "INITIAL
ACCRUAL  PERIOD  OID"  (COMPUTED  UNDER THE  APPROXIMATE  METHOD)  BELOW WILL BE
COMPLETED  SOLELY FOR THE PURPOSES OF APPLYING  THE FEDERAL  INCOME TAX ORIGINAL
ISSUE DISCOUNT ("OID") RULES.

                                   ISSUE PRICE:

                           ORIGINAL ISSUE DATE:

                          STATED MATURITY DATE:

                      AUTHORIZED DENOMINATIONS:

                                 INTEREST RATE:

                        INTEREST PAYMENT DATES:

                          REGULAR RECORD DATES:

                           TOTAL AMOUNT OF OID:

                             YIELD TO MATURITY:





                    INITIAL ACCRUAL PERIOD OID:

                                  SINKING FUND:

                            SPECIFIED CURRENCY:

                           EXCHANGE RATE AGENT:

                  OPTION TO RECEIVE PAYMENTS IN
                            SPECIFIED CURRENCY:           |_| YES      |_| NO

                           OPTIONAL REDEMPTION:           |_| YES      |_| NO

                       INITIAL REDEMPTION DATE:

                     OPTION TO ELECT REPAYMENT:           |_| YES      |_| NO

                      OPTIONAL REPAYMENT DATES:

                     OPTIONAL REPAYMENT PRICES:

                  OPTIONAL INTEREST RATE RESET:           |_| YES      |_| NO

                          OPTIONAL RESET DATES:

               OPTIONAL EXTENSIONS OF MATURITY:           |_| YES      |_| NO

                    LENGTH OF EXTENSION PERIOD:

                   NUMBER OF EXTENSION PERIODS:

                           FINAL MATURITY DATE:

                                    DEPOSITORY:

                                    DEFEASANCE:           |_| YES      |_| NO


                                        2





                           COVENANT DEFEASANCE:           |_| YES      |_| NO

                              OTHER PROVISIONS:

        IF APPLICABLE AS DESCRIBED  ABOVE,  THE REDEMPTION PRICE SHALL INITIALLY
BE ___% OF THE  PRINCIPAL  AMOUNT OF THIS  SECURITY  AND SHALL  DECLINE  AT EACH
ANNIVERSARY (EACH SUCH DATE, A "REDEMPTION DATE") OF THE INITIAL REDEMPTION DATE
BY % OF  SUCH  PRINCIPAL  AMOUNT  UNTIL  THE  REDEMPTION  PRICE  IS 100% OF SUCH
PRINCIPAL  AMOUNT;  PROVIDED,  HOWEVER,  THAT,  IF THIS  SECURITY  IS A DISCOUNT
SECURITY,  THE REDEMPTION  PRICE SHALL BE THE AMORTIZED FACE AMOUNT AS DESCRIBED
ON THE REVERSE HEREOF.  A DISCOUNT  SECURITY IS ANY SECURITY FOR WHICH THE TOTAL
AMOUNT OF OID SPECIFIED ABOVE IS GREATER THAN ZERO.

        UNITED TECHNOLOGIES  CORPORATION,  a Delaware corporation (herein called
the "Company," which term includes any successor corporation under the Indenture
hereinafter referred to), for value received, hereby promises to pay to_________
________________________________________________________________________________
or registered assigns, the principal sum of_____________________________________
on the Stated  Maturity  Date  shown  above and to pay  interest  thereon at the
Interest  Rate shown above from the Original  Issue Date shown above or from the
most  recent  Interest  Payment  Date to which  interest  has been  paid or duly
provided  for,  semi-annually  on June 15 and  December 15 of each year (each an
"Interest  Payment Date") (unless other Interest  Payment Dates are specified on
the face hereof until the principal hereof is paid or made available for payment
and at Maturity;  provided, however, that any payment of principal (and premium,
if any) or  interest  to be made on any  Interest  Payment  Date or on a date of
Maturity  that is not a  Business  Day  shall  be made  on the  next  succeeding
Business Day with the same force and effect as it made on the  Interest  Payment
Date or at Maturity, as the case may be, and no additional interest shall accrue
as a result of such delayed  payment.  For purposes of this Security,  "Business
Day"  means any day,  other than a  Saturday  or Sunday,  that meets each of the
following  applicable  requirements:  the day is (a) not a day on which  banking
institutions are authorized or required by law or regulation to be closed in The
City of New  York  and (b) if the  Specified  Currency  shown  above is not U.S.
dollars,  (i) not a day on which banking institutions are authorized or required
by law or regulation to close in the financial center of the country issuing the
Specified  Currency  (which,  in the case of European  Currency Units,  shall be
Brussels,  Belgium)  and  (ii) a day  on  which  banking  institutions  in  such
financial center are carrying out transactions in such Specified Currency.

        The interest so payable,  and  punctually  paid or duly provided for, on
any Interest  Payment Date will, as provided in such  Indenture,  be paid to the
Person in whose name this Security (or one or more  Predecessor  Securities)  is
registered  at the  close  of  business  on the  Regular  Record  Date  for such
interest,  which shall be the May 31 or November 30 (unless other Regular Record
Dates are specified on the face hereof)  (whether or not a Business Day), as the
case may be, next preceding


                                        3





such Interest Payment Date; provided,  however,  that, in the case of a Security
originally issued between a Regular Record Date and the initial Interest Payment
Date  relating  to such  Security,  interest  for the  period  beginning  on the
Original  Issue Date and ending on such initial  Interest  Payment Date shall be
paid on such initial  Interest  Payment Date to the Person to whom such Security
shall have been originally  issued;  provided,  further,  that, in the case of a
Global Security  originally issued between a Regular Record Date and the initial
Interest  Payment  Date  relating  to such  Security,  interest  for the  period
beginning on the Original Issue Date and ending on such initial Interest Payment
Date shall be paid on the Interest  Payment Date  following the next  succeeding
Regular Record Date to the  registered  Holder on such next  succeeding  Regular
Record Date. Any such interest not so punctually  paid or duly provided for will
forthwith  cease to be payable to the Holder on such Regular Record Date and may
either  be paid to the  Person  in  whose  name  this  Security  (or one or more
Predecessor  Securities)  is  registered  at the close of  business on a Special
Record  Date  for the  payment  of such  Defaulted  Interest  to be fixed by the
Trustee,  notice  whereof shall be given to Holders of Securities of this series
not less than ten days prior to such Special Record Date, or be paid at any time
in any other lawful manner, all as more fully provided in said Indenture.

        All payments in respect of this  Security  will be made in U.S.  dollars
regardless of the Specified  Currency shown above unless the Holder hereof makes
the election  described  below.  If the Specified  Currency shown above is other
than U.S. dollars, the Company or its agent will arrange to convert all payments
in respect  hereof  into U.S.  dollars in the manner  described  on the  reverse
hereof;  provided,  however,  that the Holder hereof may, if so indicated above,
elect to receive  all  payments  in such  Specified  Currency  by  delivery of a
written request to the Company's  co-paying agent (the "Co-Paying Agent") in The
City of New York,  which must be received by the Co-Paying  Agent on or prior to
the applicable  record date or at least fifteen calendar days prior to Maturity,
as the case may be;  provided,  further,  that,  if the Holder of this  Security
elects to receive all such payments in a Specified  Currency that is replaced by
a single  European  currency  (expected  to be named the  euro),  the  amount of
principal of, premium,  if any, or interest payable on any Security  denominated
in such  currency  shall be determined  in the new single  European  currency in
conformity with legally applicable  measures taken pursuant to, or by virtue of,
the treaty  establishing  the  European  Community,  as amended by the treaty on
European Union.  Such election will remain in effect unless and until changed by
written  notice to the Co-Paying  Agent,  but the  Co-Paying  Agent must receive
written notice of any such change on or prior to the  applicable  record date or
at least fifteen calendar days prior to Maturity,  as the case may be. Until the
Securities are paid or payment therefor is provided for, the Company will at all
times  maintain a Co-Paying  Agent in The City of New York capable of performing
the duties  described herein to be performed by the Co-Paying Agent. The Company
has appointed  State Street Bank and Trust Company,  N.A., New York, New York as
Co-Paying  Agent. If the Company  determines that the Specified  Currency is not
available  for making  payments  in  respect  hereof  due to the  imposition  of
exchange controls or other circumstances  beyond the Company's control, or is no
longer used by the  government  of the country  issuing such currency or for the
settlement of transaction by public  institutions of or within the international
community, then the Holder hereof may not so elect to receive payments in the


                                        4





Specified  Currency and any such  outstanding  election  shall be  automatically
suspended,  until the Company  determines  that the Specified  Currency is again
available for making such payments.

        In the event of an official  redenomination  of the  Specified  Currency
shown  above,  the  obligations  of the Company with respect to payments on this
Security   shall,   in  all  cases,   be  deemed   immediately   following  such
redenomination  to provide for payment of that amount of redenominated  currency
representing   the  amount  of  such   obligations   immediately   before   such
redenomination.  In no event shall any  adjustment be made to any amount payable
hereunder as a result of any change in the value of the Specified Currency shown
above  relative to any other  currency  due solely to  fluctuations  in exchange
rates.

        Unless  otherwise  shown  above,  payment of interest  on this  Security
(other  than at  Maturity)  will be made by  check  (from an  account  at a bank
outside the United States if such check is payable in a currency other than U.S.
dollars)  mailed to the  registered  address  of the  Person  entitled  thereto;
provided that, if the Holder hereof is the Holder of U.S. $10,000,000 or more in
aggregate  principal  amount  of  Securities  of like  tenor  and  term  (or the
equivalent thereof in a Specified Currency other than U.S. dollars determined as
provided  on the  reverse  hereof),  such  interest  payments  will  be  made in
immediately  available  funds,  but only if appropriate  instructions  have been
received in writing by the Co-Paying Agent on or prior to the applicable  record
date.  Simultaneously with any election by the Holder hereof to receive payments
in respect hereof in the Specified Currency (if other than U.S.  dollars),  such
Holder may, if applicable,  provide  appropriate  instructions  to the Co-Paying
Agent,  and all such payments will be made in immediately  available funds to an
account  maintained by the payee with a bank located  outside the United States.
Unless otherwise specified above, the principal hereof (and premium, if any) and
interest  hereon  payable at Maturity  will be paid to the Holder on the date of
Maturity in immediately available funds (payable to an account maintained by the
payee with a bank  located  outside the United  States if payable in a Specified
Currency other than U.S.  dollars) upon surrender of this Security at the office
of the Co-Paying Agent  maintained for that purpose in The City and State of New
York (or at such other location as may be specified  above),  provided that this
Security is presented to the Co-Paying  Agent in time for the Co-Paying Agent to
make such payments in accordance  with its normal  procedures.  The Company will
pay any administrative costs imposed by banks in connection with making payments
in immediately  available funds, but any tax,  assessment or governmental charge
imposed upon payments will be borne by the Holders of the  Securities in respect
of which such payments are made.

        Interest on this  Security,  if any,  will be computed on the basis of a
360-day year of twelve 30-day months.

        If the  registered  owner of this Security (as  indicated  above) is the
Depository or a nominee of the  Depository,  this Security is a Global  Security
and the  following  legend is  applicable  except as  specified  on the  reverse
hereof:  THIS GLOBAL  SECURITY MAY NOT BE  TRANSFERRED  EXCEPT AS A WHOLE BY THE
DEPOSITORY  OR BY A NOMINEE  OF THE  DEPOSITORY  TO THE  DEPOSITORY  OR  ANOTHER
NOMINEE OF THE DEPOSITORY OR BY THE


                                        5





DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR OF THE  DEPOSITORY OR A NOMINEE OF
SUCH SUCCESSOR.

        REFERENCE IS HEREBY MADE TO THE FURTHER  PROVISIONS OF THIS SECURITY SET
FORTH ON THE REVERSE  HEREOF,  WHICH FURTHER  PROVISIONS  SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH AT THIS PLACE.

        Unless the certificate of authentication hereon has been executed by the
Trustee  referred to on the reverse  hereof by manual  signature,  this Security
shall  not be  entitled  to any  benefit  under  the  Indenture  or be  valid or
obligatory for any purpose.

        IN WITNESS  WHEREOF,  the Company has caused this  instrument to be duly
executed under its corporate seal.

Dated:

UNITED TECHNOLOGIES CORPORATION


By:
   ------------------------------------
        Vice President, Treasurer

Attest:
       --------------------------------
       Secretary

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

        This is one of the Securities of the series designated  therein referred
to in the within-mentioned Indenture.


STATE STREET BANK AND TRUST COMPANY
As Trustee



By:
   ------------------------------------
        Authorized Officer


                                        6





                              [Reverse of Security]

                         UNITED TECHNOLOGIES CORPORATION
                           MEDIUM-TERM NOTES, SERIES B

        Section 1. General.  This Security is one of a duly authorized  issue of
securities of the Company  (herein  called the  "Securities"),  issued and to be
issued in one or more series under an  Indenture,  dated as of April 1, 1990, as
it may be  supplemented  from  time to time  (herein  called  the  "Indenture"),
between the Company and State Street Bank and Trust Company (as successor to The
Connecticut National Bank), as Trustee (herein called the "Trustee",  which term
includes any successor trustee under the Indenture with respect to the series of
which  this  Security  is  a  part),  to  which  Indenture  and  all  indentures
supplemental  thereto reference is hereby made for a statement of the respective
rights,  limitations of rights, duties and immunities thereunder of the Company,
the Trustee and the  Holders of the  Securities  and of the terms upon which the
Securities are, and are to be, authenticated and delivered. This Security is one
of the series set forth on the face hereof,  unlimited  in  aggregate  principal
amount.

        Section  2.  Payments.  If the  Specified  Currency  is other  than U.S.
dollars, the amount of any U.S. dollar payment to be made in respect hereof will
be  determined  by the  Exchange  Rate Agent  specified  on the face hereof or a
successor thereto (the "Exchange Rate Agent") based on the indicative  quotation
in The City of New York selected by such  Exchange  Rate Agent at  approximately
11:00  a.m.,  New York City  time,  on the second  Business  Day  preceding  the
applicable  payment  date that yields the largest  number of U.S.  dollars  upon
conversion of the Specified Currency. Such selection shall be made, as specified
on the face hereof,  from among the  quotations  from three  recognized  foreign
exchange dealers in The City of New York selected by the Exchange Rate Agent and
approved by the Company  (one of which may be the  Exchange  Rate Agent) for the
purchase by the quoting  dealer,  for  settlement  on such payment  date, of the
Specified  Currency for U.S.  dollars.  If no such bid quotations are available,
payments will be made in the Specified  Currency unless such Specified  Currency
is unavailable as provided below.

        If the Specified  Currency is other than U.S.  dollars and the Specified
Currency is unavailable  due to the imposition of exchange  controls or to other
circumstances beyond the Company's control, the Company will be entitled to make
payments in U.S. dollars on the basis of the noon buying rate in The City of New
York for cable  transfers in the  Specified  Currency as  certified  for customs
purposes by the Federal  Reserve Bank of New York (the "Market  Exchange  Rate")
for such Specified  Currency on the second  Business Day prior to the applicable
payment date. In the event such Market Exchange Rate is not then available,  the
Company will be entitled to make payments in U.S.  dollars (i) if such Specified
Currency  is not a  composite  currency,  on the  basis  of  the  most  recently
available  Market  Exchange  Rate for such  Specified  Currency  or (ii) if such
Specified  Currency  is a composite  currency,  in an amount  determined  by the
Exchange  Rate Agent to be the sum of the results  obtained by  multiplying  the
number of units of each component currency of such composite currency, as of the
most  recent  date on which  such  composite  currency  was used,  by the Market
Exchange Rate for such  component  currency on the second  Business Day prior to
such


                                        7





payment date (or if such Market Exchange Rate is not then available, by the most
recently available Market Exchange Rate for such component  currency).  From the
start of the third stage of European  Economic and Monetary  Union,  payments on
this Security that are required to be made in ECU will be payable in euro at the
rate of one euro for one ECU, and the  provisions  discussed  in this  paragraph
will not result in payment in U.S.  dollars in such  circumstances  unless euros
are no longer used in the European Monetary System.

        All  currency  exchange  costs will be borne by the  Company  unless the
Holder of this  Security  has made an  election  to receive  all  payments  in a
Specified  Currency  other than U.S.  dollars.  In that case, the Holder of this
Security  shall bear its pro rata portion of currency  exchange  costs,  if any,
with all other electing Holders by deductions from payments otherwise due.

        Each payment of interest hereon shall include  interest  accrued through
the day before the Interest Payment Date or Maturity, as the case may be.

        References  herein  to  "U.S.  dollars"  or  "U.S.$"  or "$"  are to the
currency of the United States of America.

        Section 3. Redemption.  If so specified on the face hereof,  the Company
may at its option  redeem this Security in whole or from time to time in part on
or after the date  designated as the Initial  Redemption Date on the face hereof
at prices  declining  from a specified  premium,  if any, to par  together  with
accrued interest to the Redemption Date. The Company may exercise such option by
causing  the  Trustee to mail,  first class  postage  prepaid,  a notice of such
redemption at least 30 but not more than 60 days prior to the  Redemption  Date,
setting forth the applicable  redemption  price,  Redemption Date, and principal
amount of this  Security  to be  redeemed.  In the event of  redemption  of this
Security in part only, a new Security or Securities for the  unredeemed  portion
hereof  shall be issued in the name of the Holder  hereof upon the  cancellation
hereof.  If less than all of the  Securities  with like  tenor and terms to this
Security are to be redeemed,  the Securities to be redeemed shall be selected by
the Trustee by such method as the Trustee shall deem fair and appropriate.

        Section 4. Optional Repayment.  If so specified on the face hereof, this
Security  will be repayable  prior to the Stated  Maturity Date at the option of
the  Holder on the  Optional  Repayment  Dates  shown on the face  hereof at the
Optional  Repayment  Prices  shown  on the face  hereof  together  with  accrued
interest to the applicable  Optional  Repayment Date. In order for this Security
to be repaid,  the  Company  must  receive at least 30 but not more than 45 days
prior to an Optional  Repayment  Date this Security with the form below entitled
"Option to Elect  Repayment"  duly  completed.  Any tender of this  Security for
repayment shall be irrevocable, except as otherwise provided in Sections 5 and 6
hereof. The repayment option may be exercised by the Holder of this Security for
less  than  the  entire  principal  amount  of the  Security  provided  that the
principal  amount of the Security  remaining  outstanding  after repayment is an
authorized  denomination.  Upon such partial  repayment,  this Security shall be
cancelled and a new Security or Securities  for the remaining  principal  amount
hereof shall be issued in the name of the Holder of this Security.


                                        8





        Section 5. Optional  Interest Reset. If so specified on the face hereof,
the  interest  rate on this  Security may be reset by the Company on the date or
dates specified on the face hereof (each an "Optional Reset Date").  The Company
may exercise  such option with respect to this Security by notifying the Trustee
of such  exercise  at least 50 but not more than 60 days  prior to the  Optional
Reset Date for this  Security.  Not later  than 40 days  prior to each  Optional
Reset Date,  the Trustee will mail to the Holder of this  Security a notice (the
"Reset Notice"),  first class postage prepaid, setting forth (i) the election of
the Company to reset the interest  rate,  (ii) such new interest  rate and (iii)
the  provisions,  if any, for  redemption  during the period from such  Optional
Reset Date to the next Optional  Reset Date or if there is no such next Optional
Reset Date, to the Stated  Maturity  Date of this  Security  (each such period a
"Subsequent  Interest  Period"),  including  the  date or  dates on which or the
period or periods during which and the price or prices at which such  redemption
may occur during the Subsequent Interest Period.

        Notwithstanding  the  foregoing,  not  later  than 20 days  prior to the
Optional  Reset Date,  the Company may, at its option,  revoke the interest rate
provided for in the Reset Notice and  establish a higher  interest  rate for the
Subsequent Interest Period commencing on such Optional Reset Date by causing the
Trustee  to mail  notice  of such  higher  interest  rate to the  Holder of this
Security. Such Notice shall be irrevocable. All Securities with respect to which
the  interest  rate is reset on an  Optional  Reset  Date will bear such  higher
interest rate, whether or not tendered for repayment, as described below.

        If the Company  elects to reset the  interest  rate,  the Holder of this
Security will have the option to elect repayment by the Company of the principal
of this  Security on any Optional  Reset Date at a price equal to the  principal
amount hereof plus any accrued interest to such Optional Reset Date. In order to
obtain  repayment  on an  Optional  Reset  Date,  the  Holder  must  follow  the
procedures  set forth above for  optional  repayment  except that the period for
delivery of this  Security or  notification  to the Trustee shall be at least 25
but not more than 35 days prior to such Optional  Reset Date and except that, if
the Holder has  tendered  this  Security  for  repayment  pursuant  to the Reset
Notice, the Holder may, by written notice to the Trustee, revoke any such tender
for  repayment  until  the  close of  business  on the  tenth  day prior to such
Optional Reset Date.

        Section 6. Optional  Extension of Maturity.  If so specified on the face
hereof,  the Stated Maturity Date of this Security may be extended at the option
of the Company for the period or periods  specified  on the face hereof (each an
"Extension  Period") up to but not beyond the date (the "Final  Maturity  Date")
set forth on the face hereof.  The Company may exercise such option with respect
to this  Security by notifying  the Trustee of such exercise at least 50 but not
more than 60 days prior to the Stated  Maturity  Date of this Security in effect
prior to the exercise of such option (the "Original Stated Maturity  Date").  If
the Company  exercises such option,  the Trustee will mail to the Holder of this
Security not later than 40 days prior to the  Original  Stated  Maturity  Date a
notice (the "Extension Notice"), first class postage prepaid, indicating (i) the
election of the Company to extend the Stated  Maturity Date, (ii) the new Stated
Maturity Date,  (iii) the interest rate  applicable to the Extension  Period and
(iv) the  provisions,  if any,  for  redemption  during such  Extension  Period,
including  the date or dates on which or the period or periods  during which and
the


                                        9





price or prices at which such redemption may occur during the Extension  Period.
Upon the Trustee's mailing of the Extension Notice,  the Stated Maturity Date of
this Security  shall be extended  automatically  and,  except as modified by the
Extension Notice and as described in the next paragraph, this Security will have
the same terms as prior to the mailing of such Notice.

        Notwithstanding  the  foregoing,  not  later  than 20 days  prior to the
Original  Stated  Maturity Date of this Security the Company may, at its option,
revoke the interest rate  provided for in the  Extension  Notice and establish a
higher  interest  rate for the  Extension  Period by causing the Trustee to mail
notice of such higher interest rate, first class postage prepaid,  to the Holder
of this Security. Such notice shall be irrevocable.  All Securities with respect
to which the Stated  Maturity  Date is extended  will bear such higher  interest
rate  for the  Extension  Period,  whether  or not  tendered  for  repayment  as
described below.

        If the  Company  elects  to  extend  the  Stated  Maturity  Date of this
Security, the Holder will have the option to elect repayment of this Security by
the  Company  on the  Original  Stated  Maturity  Date at a price  equal  to the
principal  amount  hereof,  plus any accrued  interest to such date. In order to
obtain  repayment  on the  Original  Stated  Maturity  Date once the Company has
extended the Stated Maturity Date hereof,  the Holder must follow the procedures
set forth above for  optional  repayment  except that the period for delivery of
this Security or  notification  to the Trustee shall be at least 25 but not more
than 35 days prior to the Original  Stated Maturity Date and except that, if the
Holder has tendered this Security for repayment pursuant to an Extension Notice,
the Holder  may by  written  notice to the  Trustee  revoke any such  tender for
repayment  until the close of  business  on the tenth day prior to the  Original
Stated Maturity Date.

        Section 7. Sinking Fund. Unless otherwise  specified on the face hereof,
this Security will not be subject to any sinking fund.

        Section 8. Discount Securities. If this Security is a Discount Security,
the amount  payable in the event of redemption by the Company,  repayment at the
option of the  Holder or  acceleration  of  Maturity,  in lieu of the  principal
amount  due at the  Stated  Maturity  hereof,  shall  be equal to the sum of (i)
unpaid  interest if any, on this Security  accrued from the date of issue to the
date of such redemption,  repayment or acceleration of maturity, as the case may
be, and (ii) the  Amortized  Face Amount of this Security as of the date of such
redemption,  repayment  or  acceleration.  The  "Amortized  Face Amount" of this
Security  shall be the amount  equal to (a) the Issue Price (as set forth on the
face hereof) plus (b) that portion of the difference between the Issue Price and
the  principal  amount  hereof that has accrued at the Yield to Maturity (as set
forth on the face hereof) (computed in accordance with generally accepted United
States bond yield computation  principles) at the date as of which the Amortized
Face Amount is  calculated,  but in no event shall the Amortized  Face Amount of
the Security exceed its stated principal amount.

        Section 9. Modification and Waivers; Obligation of the Company Absolute.
The  Indenture  permits,  with  exceptions  as therein  provided,  the amendment
thereof and the  modification  of the rights and  obligations of the Company and
the rights of the Holders of the Securities of each series


                                       10





to be affected  under the  Indenture  at any time by the Company and the Trustee
with the  consent  of the  Holders  of not less  than a  majority  in  aggregate
principal amount of all Securities at the time  Outstanding to be affected.  The
Indenture  also contains  provisions  permitting  the Holders of not less than a
majority  in  aggregate   principal   amount  of  the  Securities  at  the  time
Outstanding,  on behalf of the Holders of all Outstanding  Securities,  to waive
compliance by the Company with certain provisions of the Indenture, and contains
provisions  permitting  the  Holders  of not less than a majority  in  aggregate
principal  amount,  in  certain  instances  of  the  Outstanding  Securities  of
individual  series  and in  other  instances  of  all  Securities  at  the  time
Outstanding,  to waive on behalf of all of the  Holders  of  Securities  of such
individual  series or of the Holders of all Securities at the time  Outstanding,
as the  case may be,  certain  past  defaults  under  the  Indenture  and  their
consequences. Any such consent or waiver by the Holder of this Security shall be
conclusive  and  binding  upon such  Holder and upon all future  Holders of this
Security and of any Security issued upon the  registration of transfer hereof or
in exchange  herefor or in lieu hereof,  whether or not notation of such consent
or waiver is made upon this Security.

        No reference  herein to the  Indenture and no provision of this Security
or of the Indenture  shall alter or impair the obligation of the Company,  which
is absolute and  unconditional,  to pay or make provision as provided in Article
Fourteen of the  Indenture  for the payment of the amount of  principal  of (and
premium,  if any) and  interest on this  Security  herein  provided,  and at the
times, place and rate, and in the coin or currency, herein prescribed.

        Section 10. Defeasance and Covenant  Defeasance.  The Indenture contains
provisions  for  defeasance  at any time of (a) the entire  indebtedness  of the
Company on this Security and (b) certain  restrictive  covenants and the related
defaults  and Events of Default,  upon  compliance  by the Company  with certain
conditions set forth therein,  which provisions  apply to this Security,  unless
otherwise specified on the face hereof.

        Section 11. Authorized Denominations.  The Securities of this series are
issuable only in global or certificated  registered form, without coupons,  and,
unless  otherwise  specified  above  (and  other  than  Global  Securities),  in
denominations of $100,000 and any integral multiple of $1,000 in excess thereof.
As provided in the  Indenture  and  subject to certain  limitations  therein set
forth and to the limitations described below, if applicable,  Securities of this
series are exchangeable  for a like aggregate  principal amount of Securities of
this  series  and of like  tenor  of a  different  authorized  denomination,  as
requested by the Holder surrendering the same.

        Section 12.  Registration of Transfer.  As provided in the Indenture and
subject to certain  limitations therein set forth, the transfer of this Security
is  registrable  in the Security  Register,  upon surrender of this Security for
registration  of  transfer  at the office or agency of the  Company in any place
where the principal of (and  premium,  if any) and interest on this Security are
payable, duly endorsed by, or accompanied by a written instrument of transfer in
form satisfactory to the Company and the Security Registrar duly executed by the
Holder hereof or his attorney duly  authorized in writing,  and thereupon one or
more new Securities of this series, of authorized denominations and for the same
aggregate  principal  amount,  will be issued to the  designated  transferee  or
transferees.


                                       11





        If this Security is a Global  Security,  this  Security is  exchangeable
only if the  Depository  is at any time  unwilling  or  unable  to  continue  as
depository and a successor  depository is not appointed by the Company within 90
days, or the Depository has ceased to be a clearing agency  registered under the
Securities  Exchange  Act of 1934,  as amended.  In such case,  the Company will
issue Securities in certificated  form in exchange for each Global Security.  In
addition,  the  Company  may at  any  time  determine  not  to  have  Securities
represented by a Global  Security and, in such event,  will issue  Securities in
certificated  form  in  exchange  for  the  Global  Security  representing  such
Security.  In addition,  if there shall have occurred and be continuing an Event
of Default,  the Company will issue Securities in certificated  form in exchange
for each  Global  Security.  In any  such  instance,  an  owner of a  beneficial
interest  in a  Global  Security  will  be  entitled  to  physical  delivery  in
certificated  form of Securities  equal in principal  amount to such  beneficial
interest  and to have such  Securities  registered  in its name.  Securities  so
issued in certificated form will be issued in denominations of $100,000 (or such
other denomination as shall be specified by the Company) or any amount in excess
thereof which is an integral multiple of $1,000 and will be issued in registered
form only, without coupons.

        No service charge shall be made for any such registration of transfer or
exchange,  but the Company may require  payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

        Prior to due presentment of this Security for registration of after, the
Company,  the  Trustee and any agent of the Company or the Trustee may treat the
Person in whose name this  Security is  registered  as the owner  hereof for all
purposes,  whether or not this Security be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

        Section 13.  Events of Default.  If an Event of Default  with respect to
the  Securities  of this  series  shall have  occurred  and be  continuing,  the
principal of all the  Securities  of this series may be declared due and payable
in the manner and with the effect provided in the Indenture.

        Section 14.  Defined  Terms.  All terms used in this Security  which are
defined  in the  Indenture  shall  have  the  meanings  assigned  to them in the
Indenture.

        Section  15.  Governing  Law.  This  Security  shall be  governed by and
construed in accordance with the law of the State of New York.




                                       12





                            OPTION TO ELECT REPAYMENT

        The undersigned owner of this Security hereby irrevocably elects to have
the Company repay the principal  amount of this Security or portion hereof below
designated at (i) the Optional  Repayment Price indicated on the face hereof, if
this  Security is to be repaid  pursuant  to the  Optional  Repayment  provision
hereof,  or (ii) 100% of the principal amount of this Security to be repaid plus
accrued  interest to the Optional  Reset Date,  if this Security is to be repaid
pursuant to the Optional  Interest Reset  provision  hereof,  or to the Original
Maturity  Date,  if this  Security  is to be  repaid  pursuant  to the  Optional
Extension of Maturity provision hereof.

Dated:
      ----------------------------           -----------------------------------
                                                          Signature


SIGNATURE GUARANTEED:                              

                                             Sign exactly as name appears on the
                                             front of this  Security  [SIGNATURE
                                             GUARANTEED   -  required   only  if
                                             Securities  are  to be  issued  and
                                             delivered   to   other   than   the
- ----------------------------------           registered holder]

Principal  amount  to be  repaid,  if        Fill   in   for   registration   of
amount  to  repaid  is less  than the        Securities    if   to   be   issued
principal  amount  of  this  Security        otherwise  than  to the  registered
(principal  amount  remaining must be        holder:                            
an authorized denomination)                                   


          
                                             Name:
                                                  ------------------------------

                                             Address:
                                                     ---------------------------

                                             -----------------------------------
                                               (Please print name and address, 
                                                      including zip code)

                                                    SOCIAL SECURITY OR OTHER
                                                       TAXPAYER ID NUMBER


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





                                       13





                                  ABBREVIATIONS

        The following abbreviations, when used in the inscription on the face of
this  instrument,  shall be  construed  as though they were  written out in full
according to applicable laws or regulations:

TEN COM                      -      as tenants in common

TEN ENT                      -      as tenants by entireties

JT TEN                       -      as joint tenants with right of survivorship
                                    and not as tenants in common

UNIF GIFT MIN ACT            -                    Custodian
                                     -------------         ------------
                                        (Cust)                (Minor)

Under Uniform Gifts to Minors Act
                                 -------------------------
                                                              (State)


     Additional abbreviations may also be used though not in the above list.











                                       14




        FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and 
transfer(s) unto



- --------------------------------------------------------------------------------
      Please print or type name and address, including zip code of assignee



- --------------------------------------------------------------------------------
      PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE



- --------------------------------------------------------------------------------
      the within Security of UNITED TECHNOLOGIES CORPORATION and all rights
         thereunder and does hereby irrevocably constitute and appoint



- --------------------------------------------------------------------------------
         to transfer the said Security on the books of the within-named
           Company, with full power of substitution in the promises.

Date
    -------------------------

SIGNATURE GUARANTEED:
                                            ------------------------------------


                                            ------------------------------------
                                            NOTICE:   The   signature   to  this
                                            assignment  must correspond with the
- -----------------------------               name as it appears  upon the face of
                                            the   within   Security   in   every
                                            particular,  without  alteration  or
                                            enlargement     or    any     change
                                            whatsoever.




                                       15