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                                    FORM T-1

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            STATEMENT OF ELIGIBILITY
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

                      CHECK IF AN APPLICATION TO DETERMINE
                      ELIGIBILITY OF A TRUSTEE PURSUANT TO
                             SECTION 305(b)(2) |__|



                              THE BANK OF NEW YORK
               (Exact name of trustee as specified in its charter)

New York                                                  13-5160382
(State of incorporation                                   (I.R.S. employer
if not a U.S. national bank)                              identification no.)

                     One Wall Street, New York, N.Y. 10286
              (Address of principal executive offices) (Zip code)


                         L-3 COMMUNICATIONS CORPORATION
              (Exact name of obligor as specified in its charter)

Delaware                                                   13-3937436
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                          COLEMAN RESEARCH CORPORATION
              (Exact name of obligor as specified in its charter)

Florida                                                    59-2039476
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                               EER SYSTEMS, INC.
              (Exact name of obligor as specified in its charter)

Virginia                                                   54-1349668
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)






                             ELECTRODYNAMICS, INC.
              (Exact name of obligor as specified in its charter)

Arizona                                                    36-3140903
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                                 HENSCHEL, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2554418
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                    HYGIENETICS ENVIRONMENTAL SERVICES, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   13-3992505
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                       INTERSTATE ELECTRONICS CORPORATION
              (Exact name of obligor as specified in its charter)

California                                                 95-1912832
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                      L-3 COMMUNICATIONS AYDIN CORPORATION
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-1686808
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                     L-3 COMMUNICATIONS DBS MICROWAVE, INC.
              (Exact name of obligor as specified in its charter)

California                                                 68-0281617
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                         L-3 COMMUNICATIONS ESSCO, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   04-2281486
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)



                                      -2-



                     L-3 COMMUNICATIONS ILEX SYSTEMS, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   13-3992952
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                   L-3 COMMUNICATIONS SPD TECHNOLOGIES, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2869511
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                 L-3 COMMUNICATIONS STORM CONTROL SYSTEMS, INC.
              (Exact name of obligor as specified in its charter)

California                                                 77-0268547
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                          KDI PRECISION PRODUCTS, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   31-0740721
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                             MICRODYNE CORPORATION
              (Exact name of obligor as specified in its charter)

Maryland                                                   52-0856493
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                                   MPRI, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   54-1439937
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                                 PAC ORD, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2523436
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)



                                      -3-



                              POWER PARAGON, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   33-0638510
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                      SOUTHERN CALIFORNIA MICROWAVE, INC.
              (Exact name of obligor as specified in its charter)

California                                                 13-0478540
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                               SPD HOLDINGS, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2977238
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                          SPD ELECTRICAL SYSTEMS, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2457758
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                              SPD SWITCHGEAR, INC.
              (Exact name of obligor as specified in its charter)

Delaware                                                   23-2510039
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                             AMI Instruments, Inc.
              (Exact name of obligor as specified in its charter)

Oklahoma                                                   73-1122637
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                                  Apcom, Inc.
              (Exact name of obligor as specified in its charter)

Maryland                                                   52-1291447
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)


                                      -4-


                         Celerity Systems Incorporated
              (Exact name of obligor as specified in its charter)

California                                                 77-0365380
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                     L-3 Communications AIS GP Corporation
              (Exact name of obligor as specified in its charter)

Delaware                                                   13-4137187
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                    L-3 Communications Analytics Corporation
              (Exact name of obligor as specified in its charter)

California                                                 54-1035921
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

         L-3 Communications Atlantic Science and Technology Corporation
              (Exact name of obligor as specified in its charter)

New Jersey                                                 22-2547554
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                      L-3 Communications Investments, Inc.
              (Exact name of obligor as specified in its charter)

Delaware                                                   51-0260723
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                   L-3 Communications Integrated Systems L.P.
              (Exact name of obligor as specified in its charter)

Delaware                                                   03-0391841
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

               Microdyne Communications Technologies Incorporated
              (Exact name of obligor as specified in its charter)

Maryland                                                   59-3500774
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

                                      -5-



                       Microdyne Outsourcing Incorporated
              (Exact name of obligor as specified in its charter)

Maryland                                                   33-0797639
(State or other jurisdiction of                            (I.R.S. employer
incorporation or organization)                             identification no.)

600 Third Avenue
New York,  NY                                              10016
(Address of principal executive offices)                   (Zip code)

                                 Debt Securities
                       (Title of the indenture securities)

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                                      -6-



1.     GENERAL INFORMATION. FURNISH THE FOLLOWING INFORMATION AS TO THE
       TRUSTEE:
       (a)     NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO
               WHICH IT IS SUBJECT.

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                 Name                                        Address
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       Superintendent of Banks of the State  2 Rector Street, New York,
       of New York                           N.Y.  10006, and Albany, N.Y. 12203

       Federal Reserve Bank of New York      33 Liberty Plaza, New York,
                                             N.Y.  10045

       Federal Deposit Insurance Corporation Washington, D.C.  20429

       New York Clearing House Association   New York, New York   10005

       (b)    WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

       Yes.

2.     AFFILIATIONS WITH OBLIGOR.

       IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
       AFFILIATION.

       None.

16.    LIST OF EXHIBITS.

       EXHIBITS IDENTIFIED IN PARENTHESES BELOW, ON FILE WITH THE COMMISSION,
       ARE INCORPORATED HEREIN BY REFERENCE AS AN EXHIBIT HERETO, PURSUANT TO
       RULE 7A-29 UNDER THE TRUST INDENTURE ACT OF 1939 (THE "ACT") AND 17
       C.F.R. 229.10(D).

       1.     A copy of the Organization Certificate of The Bank of New York
              (formerly Irving Trust Company) as now in effect, which contains
              the authority to commence business and a grant of powers to
              exercise corporate trust powers. (Exhibit 1 to Amendment No. 1 to
              Form T-1 filed with Registration Statement No. 33-6215, Exhibits
              1a and 1b to Form T-1 filed with Registration Statement No.
              33-21672 and Exhibit 1 to Form T-1 filed with Registration
              Statement No. 33-29637.)

       4.     A copy of the existing By-laws of the Trustee. (Exhibit 4 to Form
              T-1 filed with Registration Statement No. 33-31019.)

       6.     The consent of the Trustee required by Section 321(b) of the Act.
              (Exhibit 6 to Form T-1 filed with Registration Statement No.
              33-44051.)

       7.     A copy of the latest report of condition of the Trustee published
              pursuant to law or to the requirements of its supervising or
              examining authority.



                                      -7-




                                    SIGNATURE



       Pursuant to the requirements of the Act, the Trustee, The Bank of New
York, a corporation organized and existing under the laws of the State of New
York, has duly caused this statement of eligibility to be signed on its behalf
by the undersigned, thereunto duly authorized, all in The City of New York, and
State of New York, on the 22nd day of March, 2002.


                              THE BANK OF NEW YORK



                              By: /s/ STACEY POINDEXTER
                                -----------------------------------------
                                  Name:  STACEY POINDEXTER
                                  Title: ASSISTANT TREASURER

                                      -8-


                                                                       EXHIBIT 7


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                       Consolidated Report of Condition of

                              THE BANK OF NEW YORK

                    of One Wall Street, New York, N.Y. 10286
                     And Foreign and Domestic Subsidiaries,
a member of the Federal Reserve System, at the close of business September 30,
2001, published in accordance with a call made by the Federal Reserve Bank of
this District pursuant to the provisions of the Federal Reserve Act.


                                                                          Dollar Amounts
ASSETS                                                                      In Thousands
                                                                           
Cash and balances due from depository institutions:
   Noninterest-bearing balances and currency and coin..                       $3,238,092
   Interest-bearing balances...........................                        5,255,952
Securities:
   Held-to-maturity securities.........................                          127,193
   Available-for-sale securities.......................                       12,143,488
Federal funds sold and Securities purchased under
   agreements to resell................................                          281,677
Loans and lease financing receivables:
   Loans and leases held for sale......................                              786
   Loans and leases, net of unearned
     income ...........................................                       46,206,726
   LESS: Allowance for loan and
     lease losses .....................................                          607,115
   Loans and leases, net of unearned
     income and allowance..............................                       45,599,611
Trading Assets.........................................                        9,074,924
Premises and fixed assets (including capitalized
   leases).............................................                          783,165
Other real estate owned................................                              935
Investments in unconsolidated subsidiaries and
   associated companies................................                          200,944
Customers' liability to this bank on acceptances
   outstanding.........................................                          311,521
Intangible assets......................................
   Goodwill............................................                        1,546,125
   Other intangible assets.............................                            8,497
Other assets...........................................                        8,761,129
                                                                             -----------
Total assets...........................................                      $87,334,039
                                                                             ===========



LIABILITIES
Deposits:
   In domestic offices.................................                      $28,254,986
   Noninterest-bearing ................................                       10,843,829
   Interest-bearing ...................................                       17,411,157
   In foreign offices, Edge and Agreement
     subsidiaries, and IBFs............................                       31,999,406
   Noninterest-bearing                                                         1,006,193
   Interest-bearing                                                           30,993,213
Federal funds purchased and securities sold under
   agreements to repurchase............................                        6,004,678
Trading liabilities....................................                        2,286,940
Other borrowed money:
   (includes mortgage indebtedness and obligations
   under capitalized leases)....... ...................                        1,845,865
Bank's liability on acceptances executed and
   outstanding.........................................                          440,362
Subordinated notes and debentures......................                        2,196,000
Other liabilities......................................                        7,606,565
                                                                             -----------
Total liabilities......................................                      $80,634,802
                                                                             ===========

EQUITY CAPITAL
Common stock...........................................                        1,135,284
Surplus................................................                        1,050,729
Retained earnings......................................                        4,436,230
Accumulated other comprehensive income.................                           76,292
Other equity capital components........................                                0
                                                                             -----------
Total equity capital...................................                        6,698,535
                                                                             -----------
Total liabilities and equity capital...................                      $87,334,039
                                                                             ===========


         I, Thomas J. Mastro, Senior Vice President and Comptroller of the
above-named bank do hereby declare that this Report of Condition has been
prepared in conformance with the instructions issued by the Board of Governors
of the Federal Reserve System and is true to the best of my knowledge and
belief.

                                                               Thomas J. Mastro,
                                           Senior Vice President and Comptroller

         We, the undersigned directors, attest to the correctness of this Report
of Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been




prepared in conformance with the instructions issued by the Board of Governors
of the Federal Reserve System and is true and correct.

                    --
Thomas A. Renyi       |
Gerald L. Hassell     |     Directors
Alan R. Griffith      |
                    --

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