Exhibit 3.89

CERTIFICATE OF INCORPORATION
STOCK CORPORATION

                              STATE OF CONNECTICUT
                             SECRETARY OF THE STATE

The undersigned incorporator(s) hereby form(s) a corporation under the Stock
Corporation Act of the State of Connecticut:

1.   The name of the corporation is      Ship Analytics USA, Inc.
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2.   The nature of the business to be transacted, or the purposes to be promoted
     or carried out by the corporation, are as follows:

          To provide management and technological advice and services to the
     government particularly for simulation systems and trainers.

          To carry on and conduct a business to perform analysis, research,
     development, design, engineering for evaluation, development and
     manufacture of marine and ship systems and related products which
     inherently involve scientific and computer based technology in their
     design, manufacture and operation.

          To acquire, and pay for in cash, stock or bonds of this corporation or
     otherwise, the good will, rights, assets and property, and to undertake or
     assume the whole or any part of the obligations or liabilities of any
     person, firm, association or corporation.

          To acquire, hold, use, sell, assign, lease, grant licenses in respect
     of, mortgage or otherwise dispose of letters patent of the United States or
     any foreign country, patents rights, licenses and privileges, inventions,
     improvements, and processes, copy-rights, trade-marks and trade names,
     relating to or useful in connection with any business of this corporation.

          To acquire by purchase, subscription or otherwise, and to receive,
     hold, own, guarantee, sell, assign, exchange, transfer, mortgage, pledge or
     otherwise dispose of or deal in and with any of the shares of capital
     stock, script, warrants, rights, bonds, debentures, notes, trust receipts,
     and other securities, obligations, chosen in action and evidences of
     indebtedness or interest issued or created by any corporations, joint stock
     companies, syndicates, associations, firms, trusts or persons, public or
     private, or by the government.

          To enter into, make and perform contracts of every kind and
     description with any person, firm, association, corporation, municipality,
     county, state, body politic or government or colony or dependency thereof.

          To borrow or raise moneys for any of the purposes of the corporation
     and, from time to time without limit as to amount, to draw, make, accept,
     endorse, execute and issue promissory notes, drafts, bills of exchange,
     warrants, bonds, debentures and other negotiable or non-negotiable
     instruments and evidence of indebtedness, and to secure the payment of any
     thereof and of the interest thereon by mortgage upon or pledge, conveyance
     or assignment in trust of the whole or any part of the property of the
     corporation, whether at the time owned or thereafter acquired, and to sell,
     pledge


     or otherwise dispose of such bonds or other obligations of the corporation
     for its corporate purposes.

          To purchase, hold, sell, and transfer the shares of its own capital
     stock; provided it shall not use its funds or property for the purchase of
     its own shares of capital stock when such use would cause any impairment of
     its capital except as otherwise permitted by law, and provided further that
     shares of its own capital stock belonging to it shall not be voted upon
     directly or indirectly.

          To have one or more offices, to carry on all or any of its operations
     and business and without restriction or limit as to amount to purchase or
     otherwise acquire, hold, own, mortgage, sell, convey or otherwise dispose
     of, real and personal property of every class, and description in any of
     the states, and districts, territories or colonies of the United States,
     and in any and all foreign countries, subject to the laws of such state,
     district, territory, colony or country.

          In general, to carry on any other business in connection with the
     foregoing, and to have and exercise all the powers conferred by the laws of
     Connecticut upon corporations formed under the General Corporation Laws of
     the State of Connecticut, and to do any or all of the things hereinbefore
     set forth, to the same extent as natural persons might or could do.

          The objects and purposes specified in the foregoing clauses shall
     except where otherwise expressed, be in no way limited or restricted by
     reference to, or inference from the terms of any other clause in this
     certificate of incorporation, but the objects and purposes specified in
     each of the foregoing clauses of this article shall be regarded as
     independent objects and purposes.

3.   The designation of each class of shares, the authorized number of shares of
     each such class, and the par value (if any) of each share thereof are as
     follows:

          The authorized capital stock shall consist of twenty thousand shares
     of common stock without par value.

4.   The terms, limitations and relative rights and preferences of each class of
     shares and series thereof (if any), or an express grant of authority to the
     board of directors pursuant to Section 33-341,1959 Supp. Conn. G.S., are as
     follows:

          a.   All shares are voting common shares without restriction or
               priority except that preemptive rights are denied to all such
               shares.

          b.   The Board of Directors are hereby expressly granted the rights to
               exercise the authority related to the issuance of shares as
               specified by Section 33-341 of the General Statutes of the State
               of Connecticut, as amended to the date of this Certificate.

5.   The minimum amount of stated capital with which the corporation shall
     commence business is

     One Thousand ($1,000.00)      dollars. (Not less than one thousand dollars)
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6.   (7) - Other provisions

     6.   The Corporation shall fully indemnify its directors, officers and
          employees against all judgements, fines and penalties and expenses as
          permitted and authorized by the State of Connecticut statutes as
          amended.

         Dated this       24th          day of         March        , 19   93
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         I/We hereby declare, under the penalties of false statement, that the
         statements made in the foregoing certificate are true.

     This certificate of incorporation must be signed by each incorporator.



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NAME OF INCORPORATOR (Print or Type)        NAME OF INCORPORATOR (Print or Type)    NAME OF INCORPORATOR  (Print or Type)
                                                                              
Alan J. Pesch                               2.                                      3.
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                                            SIGNED (Incorporator)                   SIGNED (Incorporator)
1. /s/ Alan J. Pesch                        2.                                      3.
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NAME OF INCORPORATOR (Print or Type)        NAME OF INCORPORATOR (Print or Type)    NAME OF INCORPORATOR (Print or Type)
4.                                          5.                                      6.
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SIGNED (Incorporator)                       SIGNED (Incorporator)                   SIGNED (Incorporator)
4.                                          5.                                      6.
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FOR OFFICE USE ONLY

                                          Rec: CC; GS:
                                          /s/ Francis L. Crowley
                                          ----------------------
                                          Francis L. Crowley
                                          Ship Analytics, Inc.
                                          Routes 184 & 2
                                          North Stonington Professional Center

Filed State of Connecticut March 30, 1993






                             SECRETARY OF THE STATE
                                30 TRINITY STREET
                               HARTFORD, CT 06106



Name of Corporation:                                                                           COMPLETE ALL BLANKS
                                                                                         

                                        Ship Analytics USA, Inc.

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                  The above corporation appoints as its statutory agent for service, one of the following:
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Name of Natural Person Who is Resident of Connecticut        Business Address                               Zip Code

                                                             Residence Address                              Zip Code

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Name of Connecticut Corporation                              Address of Principal Office in Conn.       (If none,
                                                             enter address of appointee's statutory agent for service)
Ship Analytics, Inc.                                           North Stonington Professional Center
                                                               Routes 2 & 184, N. Stonington, CT 06359
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Name of Corporation                                          Address of Principal Office in Conn.
(Not organized under the Laws of Conn.*)                     (If none, enter "Secretary of the State of Conn.")

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        *Which has procured a Certificate of Authority to transact business or conduct affairs in this state.
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                                                   AUTHORIZATION
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      ORIGINAL APPOINTMENT       Name of Incorporator (Print or Type)      Signed (Incorporator)           Date
        (MUST BE SIGNED
        BY A MAJORITY OF         Alan J. Pesch                             /s/ Alan J. Pesch           24 March 1993
        INCORPORATORS)
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                                 Name of Incorporator (Print or Type)      Signed (Incorporator)

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                                 Name of Incorporator (Print or Type)      Signed (Incorporator)

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SUBSEQUENT APPOINTMENT           Name of President, Vice President or Secretary                            Date


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                                 Signed (President, or Vice President or Secretary)

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

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Acceptance:  Name of Statutory Agent for Service (Print or Type)           Signed (Statutory Agent for Service)

Ship Analytics, Inc.                                                       /s/ Francis L. Crowley
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For Official Use Only                           Rec; CC:                   Francis L. Crowley, Secretary
                                                -

                                                                                               -----------------------
                                                -                                              rof. Ctr.


                                                                                               -----------------------
                                                -                                              ss for mailing receipt




                                              SECRETARY OF THE STATE
                                       ORGANIZATION & FIRST BIENNIAL REPORT
                                           (DOMESTIC STOCK CORPORATION)



                                                                                                             
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NOTE:  Filing Fee $125.00.  This report must be filed within 30 days after the date of organization meeting as shown in item 2
below.  After 30 days, the late filing fee is an additional $25.00.  ALL BLANKS MUST BE COMPLETED.
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1.   Name of Corporation

     Ship Analytics USA, Inc.
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2.   Date of Organization Meeting

     April 6, 1993
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3.   Address of Principal Office in Connecticut (if none so state)

     Route 184, North Stonington, CT 06359
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4.   OFFICERS:   (NO POST OFFICE ADDRESSES)
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NAME                                     TITLE               RESIDENCE ADDRESS                  BUSINESS ADDRESS
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Alan James Pesch                         Chairman &          Wyassup Road                       Route 184
                                         President           North Stonington, CT 06359         North Stoningtong, CT 06359
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Alan James Pesch                         Treasurer           Wyassup Road                       Route 184
                                                             North Stonington, CT 06359         North Stoningtong, CT 06359
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Janet Fiore                              Secretary           255 Grindstone Hill Road           Route 184
                                                             North Stonington, CT 06359         North Stoningtong, CT 06359
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5.   DIRECTORS:  (NO POST OFFICE ADDRESSES)
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NAME                                     TITLE               RESIDENCE ADDRESS                  BUSINESS ADDRESS
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Alan James Pesch                         Director            Wyassup Road                       Route 184
                                                             North Stonington, CT 06359         North Stonington, CT 06359
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I HEREBY DECLARE UNDER THE PENALTIES OF FALSE STATEMENT THAT THE STATEMENTS MADE IN THE
FOREGOING CERTIFICATE ARE TRUE:
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     April 12, 1993                                   /s/ Janet Fiore                               Secretary
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6.   Date                                7.  Officer's Signature - Janet Fiore                  8.   Title

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FOR OFFICIAL USE ONLY
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                               FILED                                  REC CC GS Sent to:   Janet Fiore
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                        STATE OF CONNECTICUT                          Ship Analytics, Inc.
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                            APR 21, 1993                              Route 184
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                                                                      North Stonington, CT 06359
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