ARTICLES OF INCORPORATION
                                       OF 
                 PATS AIRCRAFT AND ENGINEERING CORPORATION


approved and received for record by the State Department of Assessments and 
Taxation of Maryland February 23, 1977 at 8:30 o'clock A.M. as in conformity 
with law and ordered recorded.


A  58872


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

     Recorded in Liber 2370, folio 174, one of the Charter Records of the 
State Department of Assessments and Taxation of Maryland.

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

Bonus tax paid $150.00 Recording fee paid $15.00

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

To the clerk of the Circuit Court of Howard County

     IT IS HEREBY CERTIFIED, that the within instrument, together with all 
indorsements thereon, has been received, approved and recorded by the State 
Department of Assessments and Taxation of Maryland.

     AS WITNESS my hand and seal of the said Department at Baltimore.




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

[SEAL]



                           ARTICLES OF INCORPORATION
                                       OF
                   PATS AIRCRAFT AND ENGINEERING CORPORATION


     WE, the undersigned HARVEY C. PATRICK, whose post office address is 5229 
Windmill Lane, Columbia, Maryland 21044, RICHARD L. SCOTT, whose post office 
address is 103 Talloway Court, Sykesville, Maryland 21784 and EDWARD G. 
TINDELL, whose post office address is 566 Shipley Road, Linthicum, Maryland 
21090, each being at least twenty-one years of age, do hereby associate 
ourselves as incorporators with the intention of forming a corporation under 
and by virtue of the general laws of the State of Maryland.

                                ARTICLE I - NAME

     The name of the Corporation, hereinafter called the Corporation, is: 
PATS AIRCRAFT AND ENGINEERING CORPORATION.

                              ARTICLE II - PURPOSES

     The general nature of its business, and the purposes for which the 
Corporation is formed, are as follows:

     FIRST: The specific business in which the corporation is primarily to 
engage is the manufacture, purchasing, sale and service of aircraft parts and 
equipment.

     SECOND: To engage in the manufacture, purchase and sale of aircraft 
parts and equipment, and as such to service, manufacture, hold, purchase or 
otherwise acquire, buy and sell both retail and wholesale, produce, secure, 
receive, procure, make or otherwise dispose of, and generally deal in 
aircraft equipment and supplies of all types and to conduct such business 
either for its own account or as agent, factor, broker, middleman, commission 
man or representative of others.

     THIRD: To apply for, obtain purchase, or otherwise acquire any patents, 
copyrights, licenses, trademarks, tradenames, rights, processes, formulae and 
the like which might be used for any of the purposes of the Corporation; and 
to use, exercise, develop, grant licenses in respect of, sell and otherwise 
turn to account the same.




     FOURTH: To purchase, lease or otherwise acquire, all or any part of the 
property, rights, businesses, contracts, goodwill, franchise and assets of 
every kind of any corporation, co-partnership or individual (including the 
estate of a decedent), carrying on or having carried on in whole or in part 
any of the aforesaid business or any other business that the Corporation may 
be authorized to carry on, and to undertake, guarantee, assume and pay the 
indebtedness and liabilities thereof, and to pay for any such property, 
rights, business, contracts, goodwill, franchises or assets by the issue, in 
accordance with the laws of Maryland of stock, bonds or other securities of 
the Corporation or otherwise.

     FIFTH: To acquire by purchase, or lease, or otherwise, lands and 
interests in lands and to own, hold, improve, develop, and manage any real 
estate so acquired and to erect or cause to be erected on any lands owned, 
held or occupied by the Corporation buildings or other structures with their 
appurtenances and to rebuild, enlarge, alter or improve any buildings or 
other structures now or hereafter erected on any lands so owned, held or 
occupied and to mortgage, sell, lease or otherwise dispose of any lands or 
interests in lands and in buildings or other structures and any stores, 
shops, suites, rooms or parts of any buildings or other structures at any 
time owned or held by the Corporation.

     SIXTH: To manage, sell, assign, transfer, lease, mortgage, pledge or 
otherwise dispose of or turn to account or deal with all or any part of the 
property of the Corporation, and from time to time to vary any investment or 
employment of capital of the Corporation.

     SEVENTH: To carry on and transact for itself or for account of others 
the business of general merchants, general agents, manufacturers, buyers and 
sellers of or dealers in natural products, raw materials, manufactured 
products, marketable goods, wares and merchandise of every description.

     EIGHTH: To purchase or otherwise acquire, hold and reissue shares of its 
capital stock of any class; and to purchase, hold, sell, assign, transfer, 
exchange, lease, mortgage, pledge or otherwise dispose of any shares of stock 
or of voting trust certificates for any shares of stock of or any bonds or 
other securities or evidences of indebtedness issued or created by any other 
corporation or association organized under the laws of the State of Maryland 
or of any other state, territory,



district, colony or dependency of the United States of America or of any 
foreign country and while the owner or holder of any such shares of stock, 
voting trust certificates, bonds or other obligations to possess and exercise 
in respect thereof any and all rights, powers and privileges of ownership 
including the right to vote on any shares of stock so held or owned and upon 
a distribution of the assets or a division of the profits of this 
Corporation, to distribute any such shares of stock, voting trust 
certificates, bonds or other obligations or the proceeds thereof among the 
stockholders of this Corporation.

     NINTH: To carry out all or any part of the aforesaid purposes and to 
conduct its business in all or any of its branches in any or all states, 
territories, districts, colonies and dependencies of the United States of 
America and in foreign countries and to maintain offices and agencies in any 
or all states, territories, districts, colonies and dependencies of the 
United States of America and in foreign countries.

     The aforegoing enumeration of the purposes, objects and business of the 
Corporation is made in furtherance and no in limitation of the powers 
conferred upon the Corporation by law and is not intended by the mention of 
any particular purpose, object or business in any manner to limit or restrict 
the generality of any other purpose, object or business mentioned or to limit 
or restrict any of the powers of the Corporation. The Corporation is formed 
upon the articles, conditions and provisions herein expressed and subject 
in all particulars to the limitations relative to corporations which are 
contained in the general laws of this State.


                  ARTICLE III - ADDRESS AND RESIDENT AGENT

     The post office address of the principal office of the Corporation in 
Maryland is 7190 Oakland Hills Road, Columbia, Maryland 21046, and the name 
and post office address of the resident agent of the Corporation in Maryland 
is RICHARD L. SCOTT of 103 Talloway Court, Sykesville, Maryland, County of 
Carroll, 21784. The resident agent is a citizen of Maryland and actually 
resides therein.



                          ARTICLE IV - STOCK

     The total number of shares of stock which the Corporation has authority 
to issue is Five Hundred Thousand Shares at a par value of One Dollar ($1.00) 
each of common voting stock, and Two Hundred Fifty Thousand Shares of One 
Dollar ($1.00) par value Class A preferred non voting stock, non cumulative.

                         ARTICLE V - DIRECTORS

     The number of directors of the Corporation shall be three (3), which 
number may be increased or decreased pursuant to the by-laws of the 
Corporation but shall never be less than three. The names of the directors 
who shall act until the first meeting or until their successors are duly 
chosen and take office are HARVEY O. PATRICK, RICHARD D. SCOTT and EDWARD C. 
TINDELL.

     The Directors of the Corporation shall be elected annually by the 
stockholders at the regular annual meeting, and each stockholder will be 
entitled to cast as many votes as shall equal the number of his shares of 
stock; cumulative voting shall be allowed at all meetings of stockholders. 
Stockholders may vote by proxy. The Board of Directors of the Corporation 
shall have such powers as are necessary and incidental to carrying out the 
purposes of the Corporation, except as otherwise limited by the by-laws of 
the Corporation.

                         ARTICLE VI - OFFICERS

     The executive officers of the Corporation shall be a president, a 
vice-president, a secretary and a treasurer and any two of three offices may 
be held by the same person except that the offices of president and 
vice-president may not be held by the same person. Additional officers may be 
appointed in the discretion of the Board of Directors. Executive officers 
shall be elected by the Board of Directors by majority vote at the annual 
meeting of the stockholders. The Officers of the Corporation shall have only 
such powers as are granted to them by the by-laws of the Corporation or by 
the Board of Directors by action taken at any regular or special meeting 
thereof.

                         ARTICLE VII - BY-LAWS

     The by-laws of the Corporation shall be made and enacted by the 
stockholders at their first annual meeting, and no additions or amendments 
thereto shall thereafter be made except by majority vote of the stockholders 
at any annual or special meeting.


                                  -4-


                         ARTICLE VIII - DURATION

     The duration of the Corporation shall be perpetual.

     IN WITNESS WHEREOF, we have hereunto affixed our hands and seals this 
16th day of February, 1997.

WITNESS:

/s/ Richard L. Scott                    /s/ Harvey O. Patrick (SEAL)
- ----------------------------            ----------------------------
                                        HARVEY O. PATRICK


/s/ Roy P. Abernathy                    /s/ Richard L. Scott  (SEAL)
- ----------------------------            ----------------------------
                                        RICHARD L. SCOTT


/s/ Richard L. Scott                    /s/ Edward C. Tindell (SEAL)
- ----------------------------            ----------------------------
                                        EDWARD C. TINDELL


STATE OF MARYLAND, COUNTY OF HOWARD, TO WIT.

     I HEREBY CERTIFY that on this 16th day of February, 1997, before me, the 
Subscriber, a Notary Public of the State of Maryland, in and for the County 
aforesaid, personally appeared HARVEY O. PATRICK, RICHARD L. SCOTT and EDWARD 
G. TINDELL and they actually acknowledged the aforegoing ARTICLES OF 
INCORPORATION to be their act.

     AS WITNESS my hand and Notarial Seal.


                                        /s/ Edna L. Fulton
                                        ----------------------------
                                        NOTARY PUBLIC

MY COMMISSION EXPIRES:

July 1, 1978