10.14

                          SIXTH AMENDED EMPLOYMENT AGREEMENT

     THIS SIXTH AMENDED EMPLOYMENT AGREEMENT made this 24th day of November, 
1997, by and between QUESTECH, Inc., a Virginia corporation (hereinafter 
referred to as the "Company"), and Vincent L. Salvatori (hereinafter referred 
to as the "Employee").

     W I T N E S S E T H:

     WHEREAS, the Company and the Employee entered into an Employment 
Agreement on the 20th day of December 1979, as amended on December 16, 1983, 
December 23, 1986, June 13, 1991, December 23, 1991 and November 15, 1995 
(collectively the "Agreement");

     WHEREAS, the Company and the Employee have determined that further 
amendments to the Agreement are now required;

     WHEREAS, the current Amendments to the Agreement were approved by the 
Board of Directors of the Company on November 17, 1997;

     WHEREAS, the Company and the Employee are desirous of setting forth in 
writing the Agreement as amended.

     NOW, THEREFORE, for and in consideration of the sum of Ten dollars 
($10.00), paid by Employee to the Corporation and other valuable 
consideration, receipt of which is

                                           




hereby acknowledged and the convenants, conditions and promises herein 
contained, it is hereby agreed as follows:

     1.   Employment. By Resolution duly adopted by its Board of Directors
          (hereinafter referred to as ("the Board"), a copy of the Board's
          resolution attached hereto as Exhibit A, the Vice Chairman of the
          Board or the President and Chief operating Officer, was authorized to
          enter into this amended Agreement by executing this Agreement.

          Accordingly, the Company hereby agrees to employ the Employee and the
          Employee hereby accepts said employment upon the terms and conditions
          hereinafter set forth.

     2.   Positions and Titles. During the period of the Employee's full-time
          employment by the Company, as hereinafter defined in this Agreement,
          the Employee shall have the titles and hold the offices of Chairman of
          the Board and Chief Executive Officer, and shall have the usual
          authority associated with said positions as more fully described in
          the By-laws of the Company in effect as of the date of this Agreement,
          In addition, the Company and the Employee further agree as follows:

                                          2


          (a)  The Employee may hold other offices and have other titles from
               time to time as determined by the Board, but shall have no less
               authority, positions and titles granted the Employee by the
               Company pursuant to this paragraph.

          (b)  If the Employee elects part-time employment in accordance with
               this Agreement, during the period of the Employeets part-time
               employment by the Company, as hereinafter defined in this
               Agreement:

               (i)  The Employee acknowledges the Board's right to request that
               the Employee resign from the position of Chief Executive Officer;
               and

               (ii)   The Employee shall continue to have the title of Chairman
               of the Board and shall have the usual authority associated with
               that position and perform such other duties as may be mutually
               agreed upon from time to time between the Employee and the
               Company.

          (c)  The Employee's Agreement to resign the office of Chief Executive
               Officer upon his being employed by the Company having located a


                                          3


               satisfactory replacement or the position of Chief Executive
               Officer, and absent same, the Employee shall retain the office
               and title until such replacement is located by the Company, but
               in no event longer than nine (9) months from the date the
               Employee elects part-time employment.

      3.  Term.  The term of this Agreement shall be for a period of three (3)
          years from the date of this Agreement.  This Agreement, so long as it
          governs Employee's full-time employment by the Company, shall be
          renewed annually by appropriate resolutions duly adopted by the Board
          for successive three (3) year periods.  The Employee agrees to remain
          in the employ of the Company, whether it be on a full-time or
          part-time basis, as more fully defined in this Agreement, during the
          period of time of this Agreement unless terminated or canceled
          pursuant to paragraph 15 or 18 herein.  The period of time of this
          Agreement shall be the sum of the period of full-time employment
          hereunder and of part-time employment unless there is an event of (i)
          termination pursuant to paragraph 15 herein, (ii) cancellation


                                          4




          pursuant to paragraph 18 hereof, or (iii) death of the Employee, and
          shall be referred to as "the effectiveness of this Agreement".  The
          annual renewal of this Agreement by the Board shall be governed by the
          following:

          (a)  The subject of the annual renewal of this Agreement by the Board
               shall be an Agenda item for the Board at its regularly scheduled
               quarterly meeting immediately preceding or following the
               anniversary date of this Agreement, whichever may be closer to
               the anniversary date.

          (b)  The annual renewal of this Agreement shall be by the majority
               vote of the members of the Board, excluding the Employee's vote.

     4.   Full-Time Employment Status.  During the period of the Employee's
          full-time employment by the Company, the Employee shall devote such of
          his business hours to the affairs of the Company as may be necessary
          in order to perform his duties and responsibilities.

     5.   Part-Time Employment Status.  During the effectiveness of this
          Agreement, and upon the Employee having completed at least twelve (12)



                                          5



          years of service for the Company and being at least fifty-two (52)
          years of age, the Employee shall have the right to elect part-time
          employment status and to be so employed by the Company for a period of
          up to ten (10) years.  Such right shall also be granted the Employee
          in the event this Agreement and/or extension thereof are not renewed
          at any time.  Part-time employment, for purposes of this Agreement,
          shall be defined as the Employee devoting, at his option, a minimum of
          thirty-three percent (33%) and a maximum of fifty percent (50%) of his
          business hours to the affairs of the Company based on two thousand and
          eighty (2,080) hours annually.  The employee's right to part-time
          employment status and to be so employed by the Company shall be
          governed by the following:

          (a) The Employee shall provide the Company at least ninety (90) days
          written notice of the intention to convert his employment status from
          full-time to part-time.  The notice may be Provided by the Employee at
          any time after he has met the conditions precedent to part-time
          employment or at least ninety (90) days prior to the date the Employee
          fulfills the


                                          6



          latest condition precedent to part-time employment status.

          (b)  The time at which such election is to be effective may be
               shortened or waived in its entirety or extended up to an
               additional six (6) months after the ninety (90) day period by a
               vote of two-thirds (2/3) of the Board, excluding the Employee's
               vote.

     6.   Compensation.  The Company shall pay to the Employee as compensation
          for his services hereunder the amount set forth in this paragraph,
          subject to the further provisions of this paragraph:

          (a)  During Full-Time Employment.  During the period of the Employee's
               full-time employment by the Company, he shall be paid a salary
               for the office of Chief Executive Officer in the sum of at least
               One Hundred Forty-five Thousand Dollars ($145,000.00), to be
               reviewed and increased at least annually by appropriate action of
               the Board, in such a manner as to insure that the compensation
               rate is commensurate with the industry scale for similar
               positions.  In addition to the


                                          7



               salary to be paid the Employee, the Company by appropriate action
               of the Board may provide the Employee bonus payments based on the
               performance of the Employee and the financial condition of the
               Company and such other benefits consistent with the Employee's
               position.  In addition, the Employee shall be entitled to receive
               an annual fee as Chairman of the Board of not less than $40,000
               as well as a fee as a director of the Company of not less than
               $20,000.

               In the event the Employee is not an officer or director of the
               Company, he shall no longer be paid fees as Chairman or as a
               director, but his base salary for all purposes in the Agreement
               shall be no less than $205,000 or his total compensation,
               including such fees, immediately prior to this time he no longer
               is an officer and/or director of the Company, if higher.

          (b)  During Part-Time Employment. During the period of the Employee's
               part-time employment by the Company, the Employee's salary shall
               be governed by the parameters of hours set 



                                          8


               forth in paragraph 5 of this Agreement.  The compensation shall
               be further premised on the actual hours worked as stated on the
               Employee's time card and submitted to the President of the
               Company for his counter-signature.  Said part-time compensation
               shall be determined as follows:

               (i)  If the Employee is age fifty-five (55) or older at the time
               of his conversion to part-time employment, he shall receive
               compensation based on his hourly rate of pay which shall equal
               the annual rate of compensation (including the fees referred to
               above) received by the Employee at the date of Employee's
               conversion to part-time employment, divided by two-thousand and
               eighty (2,080) without further deduction.

               (ii)  If the Employee is between the ages of fifty-two (52) and
               fifty-five (55) (but has not reached his fifty-fifth (55th)
               birthday) at the time of his conversion to part-time employment,
               he shall receive compensation based on his hourly rate of pay as
               first determined in subparagraph (i)


                                          9


               above (hereinafter referred to as the "Normal Hourly Rate") and
               then adjusted downward as follows:

                    (aa)       The normal hourly rate shall be reduced by
                    fifteen percent (15%) if the Employeers conversion to
                    part-time employment occurs at the age of fifty-two (52) but
                    before his fifty-third (53rd) birthday.

                    (bb)       The normal hourly rate shall be reduced by ten
                    percent (10%) if Employee's conversion to part-time
                    employment occurs at the age of fifty-three (53) but before
                    the fifty-fourth(54th) birthday.

                    (cc)       The normal hourly rate shall be reduced by five
                    percent (5%) if Employee's conversion to part-time
                    employment occur at the age of fifty-four (54) but before
                    his fifty-fifth (55th) birthday.

               (iii)  The Employee's hourly rate as determined by paragraph
               6(b)(i) and (ii) shall be increased on each anniversary date


                                          10


               of this agreement by the increase in the Consumer Price Index of
               the prior twelve-month period.

               (iv)   The Employee shall receive such other compensation and
               benefits which are granted pursuant to subparagraph (a) of this
               paragraph or associated with other positions he holds in the
               Company.

     7.   Vacation and Sick Leave.  The Employee shall be entitled to vacations
          and sick leave as set forth in the Company's Handbook for Employees in
          effect as of the date of this Agreement, with such improvements and
          additional benefits as may be incorporated therein from time to time. 
          Vacation time may be accrued on a pro-rata basis for part-time work
          equal to one-third (1/3) to one-half (1/2) of the normal full-time
          accrual, depending on the extent of part-time employment status.

     S.   Expenses. The Company agrees to reimburse the Employee in full for all
          reasonable expenses incurred by the Employee in the pursuit of the
          Company's business, whether the Employee is employed on a full-time or
          part-time basis.  The Employee shall submit to the President of the


                                          11



          Company for his counter-signature appropriate expense reports and
          vouchers in support of-the expenses incurred on behalf of the Company.

     9.   Insurance (Hospital, Medical, Dental and Vision).  The Company
          acknowledges that the Employee and his dependents, including his
          current spouse (as of the date of this Agreement or any amendment
          thereto), have been and are currently participants in the Company's
          medical plan and that in addition the Company has maintained and
          currently maintains dental and vision insurance policies for the
          Employee, his current spouse, and his dependents.
          With regard to such plans and insurance, the Company agrees with the
          Employee as follows:

          (a)  To the extent possible under the terms of the plan, and if
               necessary, through other insurance, the Company shall continue to
               maintain the plan and shall be responsible for the respective
               premium payments throughout the effectiveness of this Agreement,

          (b)  Or, if the Company shall not continue its plan, it shall purchase
               insurance comparable thereto, to reimburse the Employee for all


                                          12




               hospital, medical, dental and vision expenses not otherwise
               covered.

          (c)  In the event the Employee has been employed by the Company for at
               least twelve (12) years and terminates this Agreement pursuant to
               paragraph 15(a), or this Agreement has not been terminated but
               the term hereof has expired, the employee, his current spouse as
               of the date of this Agreement or any amendment thereto, and to
               the extent allowed by the plans and insurance, their dependents,
               shall be provided life-time coverage identical with the coverage
               set forth in subparagraphs (a) and (b).  Such reimbursement of
               the Employee shall be determined after deductions for Medicare,
               Medicare supplements, and any other health insurance benefit
               payments.

     10.  Insurance (Life).  The Company shall continue to maintain permanent
          life insurance (Policy #lA2248622-0 or its substitute) on the Employee
          in the face amount of not less than $300,000 and agrees to pay full
          premiums due on said policies during the effectiveness of this
          Agreement.  The


                                          13



          Employee shall have the sole right to designate the beneficiaries
          under such policies of insurance.  The Company agrees that it shall:

          (a)  Pay all premiums on such policies and otherwise maintain them in
               full force and effect.

          (b)  Not borrow on the policies or otherwise encumber them.

          (c)  Make no attempt or request on the Employee to change the names of
               any beneficiaries or the method of the payment of the proceeds to
               them.

          (d)  Regularly exhibit to the Employee, if requested, receipts for
               premium payments as well as to furnish the Employee with proof
               that the policies are in full force and effect with the
               appropriate beneficiary designations.

     11. Insurances.

          (a)  Executive Benefit Plan.  The Company and Employee acknowledge
               that they have entered into an Agreement setting forth an
               Executive Benefit Plan dated March 9, 1984, as amended ("the
               Executive Benefit Plan").  In


                                          14




               connection therewith, the parties agree that this Agreement shall
               not in any manner modify, alter or change the terms and
               conditions of the Executive Benefit Plan.
               It is further agreed that:

               (i)       The Employee's benefits shall not be reduced on account
                         of paragraph seven (7) of the Executive Benefit Plan.

               (ii)      All other provisions of the Executive Benefit Plan as
                         amended, shall remain in full force and effect.

               (iii)     The Employee shall be provided an annual report on the
                         status of the Executive Benefit Plan and his account
                         therein.

               (iv)      The Company will fully fund the financing of the
                         Executive Benefit Plan by January 30, 1990, and
                         transfer ownership of such funding vehicles to a trust
                         to be established by mutual consent between the Company
                         and the Employee.


                                          15




          (b)  Group Term.  The Employee shall have the right to continue to
               receive the group term benefit for the $100,000 group life
               insurance and continue to purchase the optional $100,000
               additional policy, currently costing $12.00 per pay period during
               the effectiveness of this Agreement.

     12.  QuesTech Officers and Managers Deferred Compensation Trust (DEF COM
          I).  The Company agrees that the Employee shall have the right to
          participate in DEFCOM I during the period he is receiving any payments
          under this Agreement, and thereafter the Company agrees to allow the
          Employee to make annual contributions of the eligible amounts which
          can be contributed by the Founders until age 65.  The Company further
          agrees that the Employee shall receive from DEF COMI upon retirement
          at least the highest annual payment per year of any other participant
          in the Plan.  The Company agrees that the Employee may continue to
          serve as a Trustee of the DEF COM I Compensation Trust.  The Employee
          shall be provided all reports and documents available to any other
          trustee or person.

                                          16


     13.  QuesTech Variable Deferral Plan ("the Deferral Plan").  The Company
          agrees that the Employee shall continue to have the right to
          participate in the Deferral Plan until the age of 65.  The Company
          further agrees that the Employee may continue to serve as a trustee of
          the Deferral Plan Trust.  The Company further agrees that:

          (a)  The Employee shall participate at the level chosen by him until
               age 65.

          (b)  At termination of the Plan the Employee shall participate in any
               surplus distribution in accordance with his pro-rata share of the
               total pool amount.

          (c)  The Employee shall be provided all reports and documents
               available to any other trustee.

     14.  Disability.  The Company acknowledges that it currently maintains
          disability insurance policies to compensate the Employee in the event
          of his disability.  Notwithstanding any obligations on the Company to
          maintain disability insurance policies or the availability of same to
          the Company, the Company and Employee agrees as follows:



                                          17




          (a)  In the event of the Employee's disability, the Employee shall be
               entitled to the compensation specified in this Agreement, less
               any payments made under the Company's disability insurance
               policies, for the remainder of the Employeers employment term, be
               it full-time or part-time, and for so long as the Employee
               remains under the disability.

          (b)  "Disability" as used in this paragraph shall be defined by the
               definition set forth in the then existing disability insurance
               policies of the Company.

          (c)  In the event the Company does not have in full force and effect
               any disability insurance policies at the time of the Employee's
               disability, "disability" shall be defined as sickness, physical
               or mental, or other incapacity, or other reason causing the
               Employee to be unable to reasonably perform his services with
               respect to the company's business as those performed immediately
               prior to such disability.


                                          18





     15.  Termination.  This Agreement may be terminated by the Company and the
          Employee pursuant to the following:

          (a)  Employee's Voluntary Termination.  The Employee may voluntarily
               terminate this Agreement by providing the Company one hundred
               twenty (120) days written notice if such termination is requested
               during the Employee's full-time employment and sixty (60) days
               written notice if during part-time employment.  Any compensation
               to be paid to the Employee by the Company resulting from
               termination shall be governed by paragraph 16 of this Agreement.

          (b)  Involuntary Termination. The Company shall have the right to
               involuntarily terminate the Employee with or without cause at any
               time.  If such termination is without cause, the Company shall
               pay to the Employee the compensation as set forth in paragraph
               16(b) herein.  In the event the Employee is terminated by the
               Company for cause, he shall be entitled to no further
               compensation under this Agreement as of the effective date of



                                          19




               the termination.  For purposes of this Agreement, "cause" shall
               be defined as any action taken by the Employee or any action
               which the Employee fails to take which is determined by a court
               of competent jurisdiction to be criminal, fraudulent or to
               involve gross negligence on the part of the Employee, other than
               an act or failure to act which the Employee in good faith
               believed was for the benefit of the Company.  The Company agrees
               to provide the Employee at least sixty (60) days written notice
               of termination pursuant to this subparagraph.

     16.  Payment on Termination.

          (a)  Voluntary Termination.  In the event the Employee voluntarily
               terminates this Agreement pursuant to paragraph (15)(a) hereof or
               exercises his right to elect part-time employment status pursuant
               to paragraph 5 hereof during the period of his full-time
               employment, he shall be paid the maximum total compensation he
               would receive under this Agreement for a period of five (5) years
               from the effective date of termination or

                                          20



               change of employment status, unless upon the Employee's request,
               a waiver of the non-compete provision set forth in paragraph 17
               is approved by a vote of two-thirds (2/3) of the Board excluding
               the Employee.  Any payments required to be made to the Employee
               due to voluntary termination shall be payable to the Employee, or
               upon his death, to his spouse or to his estate, at the Employee's
               sole option.

          (b)  Involuntary Termination. In the event the Employee is
               involuntarily terminated without cause by the Company, pursuant
               to paragraph 15 (b), he shall receive his full maximum total
               compensation pursuant to this Agreement, including part-time
               employment, for a period of five (5) years from the effective
               date of termination.  Any payments required to be made to the
               Employee due to involuntary termination shall be payable to the
               Employee, or upon his death, to his spouse or to his estate, at
               the Employee's sole option.



                                          21



          (c)  In the event that the Company is taken over by a hostile board or
               the Employee is involuntarily terminated without cause by the
               Company, the Company shall post a letter of credit or a note
               subordinated only to the prime lender, in the amount of the total
               compensation to be paid the Employee under paragraphs 10,11,12
               and 16(b), such note or letter of credit to be reduced dollar for
               dollar as compensation is paid out to the Employee under
               paragraph 16(b), or as premiums are paid to insurers on his
               behalf.  In the event this paragraph is invoked, and the Employee
               receives a subordinated note, sales of assets by the Company
               greater than One-Hundred Thousand ($100,000) dollars will require
               the approval of the Employee.  A hostile board is one, which
               involuntarily removes the employee from his position as Chairman
               of the Board, and/or CEO or which changes the duties of either
               position without the concurrence of the Employee.

     17.  Covenant Against Competition.  The Employee acknowledges that he has
          been involved in the

                                          22


          operation of the Company and its subsidiaries and has familiarity
          with.the operation of the business of the Company and its
          subsidiaries.  The Employee further acknowledges that the Company and
          its subsidiaries do business throughout the United States.     The
          Employee agrees that during the effectiveness of this Agreement and
          for a period of three (3) years from the effective date of the
          Employee's voluntary or involuntary termination of employment, he will
          not acquire interest in, other than an interest in a publicly traded
          corporation which is insufficient to influence such corporation's
          business or work, or perform any services  for any person, firm,
          company, corporation, or other entity anywhere in the United States,
          which has been, is, or is then potentially a competitor the Company or
          its subsidiaries, or which is engaged primarily in activities similar
          to the type of business conducted by the Company or its subsidiaries
          at the time of termination, unless the Board approves same by
          two-thirds (2/3) vote excluding the vote of the Employee.


                                          23




     18.  Death of Employee.  In the event of the Employee's death during the
          effectiveness of this Agreement, this Agreement shall stand terminated
          as of the date of death, except as to the following:

          (a)  All compensation then being paid to the Employee by the Company
               as of the date of death shall continue to be paid to the
               Employee's surviving spouse or if not survived by his spouse,
               then his dependents, for a period of five (5) years after the
               date of death.  In the event the Employee is not survived by his
               spouse or leaves no dependents, no compensation shall be payable
               by the Company after the date of death.

          (b)  The provisions of paragraph 9(c) shall survive the termination of
               this Agreement and shall bind the Company as to their
               requirements.

          (c)  The Company shall cooperate and take all necessary steps to
               effectuate the payment of the insurance proceeds established in
               paragraph 10 of this Agreement.




                                          24




          (d)  All accrued and unpaid benefits under this Agreement, whatsoever
               in nature, shall be payable to the Employee's estate.

     19.  Assignment of Agreement.  In the event that the Company is merged,
          reorganized, sold or otherwise comes under new ownership or control,
          if allowable under the law, all provisions of this Agreement shall
          bind the Company's successor in interest.  The Company's successor in
          interest shall be required to retain the employee in the same capacity
          as employed by the Company.

     20.  Amendments.   This Agreement cannot be changed or terminated orally
          and no waiver of compliance with any provision or condition hereof
          shall be effective unless evidenced by an instrument in writing duly
          executed by the parties hereto sought to be charged by such waiver.

     21.  Writing. This Agreement sets forth the entire understanding of the
          parties with respect to the employment of the Employee by the Company
          and supersedes any and all prior agreements, arrangements and
          understandings relating to the subject matter hereof.  This-Agreement
          shall be binding upon and inure to the benefit of the

                                          25




          parties and their respective successors and assigns.

     22.  Waiver. The waiver by the Company or the Employee of any breach of any
          provision of this Agreement shall not be construed as a waiver of any
          subsequent breach of this Agreement.

     23.  General Provisions.

          (a)  Should the parties disagree as to the meaning of the provisions
               of this Agreement, they shall attempt to negotiate a settlement
               of their differences.  If, however, the negotiations are
               unsuccessful, either party may seek aid of a court competent
               jurisdiction in the Commonwealth of Virginia, to either settle
               disputes arising as to the meaning or intent of this Agreement or
               to declare the parties' rights or to enforce this Agreement.  In
               that event, the court shall deny attorney's fees and costs to the
               party not substantially prevailing and award the same to the
               party who substantially prevails.

          (b)  In the event that any term, provision, or paragraph of this
               Agreement is declared


                                          26


               illegal, void or unenforceable, the same shall not affect or
               impair the other terms, provisions, or paragraphs of this
               Agreement.  Convenants contained in this Agreement shall be
               independent.  The doctrine of severability shall be applied.  The
               parties do not intend by this statement to imply the illegality,
               voidness or unenforceability of any of the terms, provisions or
               paragraphs of this Agreement.

     24.  Captions.  The captions for each paragraph are not part of this
          Agreement, but are for identification purposes only.

     25.  Governing Law. This Agreement is made under and shall be construed
          pursuant to the laws of the Commonwealth of Virginia.

     26.  Notices. Any notice, writing, report or other document required or
          permitted hereunder shall be in writing and shall be given by pre-paid
          registered or certified mail, return receipt requested, addressed as
          follows:




                                          27



     27.

          IF TO THE COMPANY:

          QuesTech, Inc.
          7600W Leesburg Pike
          Falls Church, VA    22043

          Attention: President and Chief Operating Officer

          COPY TO:

          Michael Rivera, Esq.
          Vice President and General Counsel
          7600-W Leesburg Pike
          Falls Church, VA   22043

          IF TO THE EMPLOYEE:

          Vincent L. Salvatori
          2652 Green Briar Lane
          Annapolis, MD 21401


     The date of any such notice and of service thereof
shall be deemed to be the date of dispatch.  Either party
may change his address or purpose of notice by giving in
accordance with the provisions of this paragraph.









                                          28




     IN WITNESS WHEREOF, the parties hereto have hereunto
set their hands the date and year first above written.


                         THE COMPANY:

Witnessed by:            QUESTECH, INC.



  M. P. Rivera           By:  Gerald F. Mayefskie          
- ---------------------        ------------------------------
                              GERALD F. MAYEFSKIE
                              President and Chief Operating
                              Officer

                              THE EMPLOYEE:

Witnessed by:                 VINCENT L. SALVATORI



  M. P. Rivera                 Vincent L. Salvatori        
- ---------------------        ------------------------------







                                          29