BOOK 87   PAGE 376
                                  PATS, INC.
                             A CLOSE CORPORATION
                          ARTICLES OF INCORPORATION

        THIS IS TO CERTIFY:  That I, the undersigned, Harvey O. Patrick, whose 
post office address is 5229 Windmill Lane, Columbia, Howard County, Maryland 
21044, being at least eighteen (18) years of age do hereby form a corporation 
under the general laws of the State of Maryland.

        FIRST: That the name of the Corporation (which is hereafter called the 
"Corporation") is: PATS, INC.

        SECOND: The Corporation shall be a close corporation as authorized by 
the Annotated Code of Maryland, Corporations and Associations, and shall exist 
as same until such time as the stockholders by unanimous consent shall file 
Articles of Amendment to change such status.

        THIRD: The purposes for which the Corporation is formed are as 
follows:

        (a) To carry on research and development and provide consulting 
services for aircraft and affiliated industries; to develop and hold 
workshops, develop and write guidelines, and provide management services.

        (b) To provide maintenance and construction services for aircraft and 
affiliated industries.

        (c) To do everything necessary, proper, advisable or convenient for 
the accomplishment of the foregoing purposes, and to do all other things 
incidental or connected with them which are not forbidden by governing law or 
by the Annotated Code of Maryland, Corporations and Associations.

        FOURTH: The post office address of the principal office of the 
Corporation in Maryland is P.O. Box 8686 Baltimore/Washington International 
Airport, Anne Arundel County, Maryland 21240. The name and post office 
address of the resident agent of the Corporation in Maryland is Harvey O. 
Patrick, 5229 Windmill Lane, Columbia, Howard County, Maryland 21044. Said 
Resident Agent is an adult citizen of Maryland and actually resides therein.

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        FIFTH: The total number of shares of stock which the Corporation has 
authority to issue is 100,000 shares of the par value of $1.00 per share, all 
of one class and having an aggregate par value of One Hundred Thousand 
Dollars ($100,000.00).

        SIXTH:  The number of directors of the Corporation shall be one (1), 
which number may be increased or decreased pursuant to the by-laws of the 
Corporation, but shall never be less than one. The name of the director who 
shall act until the first annual meeting or until his successor is duly chosen 
and qualified is:

                                 Harvey O. Patrick      

        SEVENTH: The duration of the Corporation shall be perpetual. 

        IN WITNESS WHEREOF, I have signed these Articles of Incorporation 
this 27th day of August, 1976 and acknowledge the same to be my act.

WITNESS:


  /s/ [ILLEGIBLE]                                  /s/ Harvey O. Patrick
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                                                Harvey O. Patrick


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