===============================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                  FORM 10-K/A

       /X/ Annual Report Pursuant to Section 13 or 15(d) of the Securities
                              Exchange Act of 1934
                    For the fiscal year ended September 30, 1997

                                      or

       / / Transition Report Pursuant to Section 13 or 15(d) of the
                        Securities Exchange Act of 1934
                   For the period from __________ to __________

                       Commission file number 0-6890

                        MECHANICAL TECHNOLOGY INCORPORATED
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

           New York                                        14-1462255
- -------------------------------                       -------------------
(State or other jurisdiction of                       (I.R.S. Employer
incorporation or organization)                        Identification No.)

968 Albany-Shaker Rd, Latham, New York                       12110
- ----------------------------------------              -------------------
(Address of principal executive offices)                  (Zip Code)

        Registrant's telephone number, including area code: (518)785-2211
        Securities Registered Pursuant to Section 12(b) of the Act: NONE
           Securities Registered Pursuant to Section 12(g) of the Act

                         $1.00 Par Value Common Stock
                         ----------------------------
                                (Title of Class)

Indicate by check mark if disclosure of delinquent filers pursuant to Item 
405 of Regulation S-K is not contained herein, and will not be contained, 
to the best of registrant's knowledge, in definitive proxy or information 
statements incorporated by reference in Part III of this Form 10-K or any 
amendment to this form 10-K. [  ]

Indicate by check mark whether the registrant (1) has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act 
of 1934 during the preceding 12 months (or for such shorter period that 
the registrant was required to file such reports), and (2) has been 
subject to such filing requirements for the past 90 days.
                                       Yes  X    No     
                                           ---      ---
The aggregate market value of the registrant's Common Stock held by 
nonaffiliates of the registrant on December 12, 1997 (based on the last 
sale price of $5.125 per share for such stock reported by OTC Bulletin 
Board for that date) was approximately $16,154,195.

As of August 7,1998, the registrant had 5,989,896 shares of Common 
Stock outstanding.
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                                 PART IV

ITEM 14:  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
- --------------------------------------------------------------------------

(a)  The financial statements filed herewith are set forth on the Index to
Consolidated Financial Statements on page F-1 of the separate financial 
section that accompanies this Report, which is incorporated herein by 
reference.
 
   The following exhibits are filed as part of this Report:

      Exhibit
       Number           Description
      -------           -----------
        2.1             Purchase Agreement, dated as of November 23,
                        1994, among the Registrant, ProQuip Inc. and     
                        Phase Metrics.(7)

        3.1             Certificate of Incorporation of the registrant,  
                        as amended.(1)

        3.2             By-Laws of the registrant, as amended.
                                                 
        4.1             Certificate of Amendment of the Certificate      
                        of Incorporation of the registrant, filed        
                        on March 6, 1986 (setting forth the provisions  
                        of the Certificate of Incorporation, as amended,  
                        relating to the authorized shares of the         
                        registrant's Common Stock) - included in the copy  
                        of the registrant's Certificate of Incorporation,  
                        as amended, filed as Exhibit 3.1 hereto.

        4.20            Loan Agreement, dated as of June 1, 1987, between  
                        the registrant and Chase Lincoln First Bank, N.A.  
                        ("Chase Lincoln"),relating to a $20,000,000 term  
                        loan to finance the registrant's acquisition of  
                        United Telecontrol Electronics, Inc. (the "UTE Loan 
                        Agreement").(1)

        4.21            First Amendment to Loan Agreement, dated as of  
                        September 30, 1988, amending certain provisions of  
                        the UTE Loan Agreement.(1)

        4.22            Second Amendment to Loan Agreement, dated as of  
                        February 21, 1990, amending certain provisions of  
                        the UTE Loan Agreement.(1)

        4.24            Third Amendment to Loan Agreement, dated as of   
                        January 1, 1991, amending certain provisions of the
                        UTE Loan Agreement.(2)

        4.25            Form of Note, in the amount of $9,181,700, executed
                        by the registrant on January 1, 1991 to evidence  
                        its indebtedness under the UTE Loan Agreement.(2)



        4.26            Form of Note, in the amount of $2,000,000, executed
                        by the registrant on January 1, 1991 to evidence 
                        its indebtedness under the UTE Loan Agreement.(2)

        4.27            Form of Note, in the amount of $1,000,000,       
                        executed by the registrant on January 1, 1991 to 
                        evidence its indebtedness under the UTE Loan     
                        Agreement.(2)

        4.28            Mortgage, dated January 31, 1991, executed by the  
                        registrant in favor of Chase Lincoln and securing  
                        the registrant's obligation to Chase Lincoln,    
                        including those under the UTE and ProQuip Loan  
                        Agreements.(2)

        4.30            Loan Agreement, dated as of September 30, 1988,  
                        between the registrant and Chase Lincoln relating  
                        to an $8,000,000 term loan to finance the        
                        registrant's acquisition of ProQuip, Inc. (the  
                        "ProQuip Loan Agreement").(1)

        4.31            Negative Pledge Agreement, dated as of September  
                        30, 1988, executed by the registrant in favor of  
                        Chase Lincoln in connection with the ProQuip Loan  
                        Agreement.(1) 

        4.32            Security Agreement, dated as of September 30, 1988,
                        executed by the registrant in favor of Chase     
                        Lincoln and securing the registrant's obligation
                        to Chase Lincoln, including those under the UTE and
                        ProQuip Loan Agreements (the "Chase Lincoln
                        Security Agreement").(1)

        4.33            First Amendment to Loan Agreement, dated as of  
                        February 21, 1990, amending certain provisions of  
                        the ProQuip Loan Agreement.(1)

        4.34            Form of Note, in the amount of $3,375,817.80,    
                        executed by the registrant on February 21, 1990 
                        to evidence its indebtedness under the ProQuip 
                        Loan Agreement.(1)

        4.35            Amendment Number One to Security Agreement, executed
                        by the registrant on February 21, 1990, amending
                        the Chase Lincoln Security Agreement.(1)

        4.36            Mortgage, dated February 21, 1990, executed by the  
                        registrant in favor of Chase Lincoln and securing  
                        the registrant's obligations to Chase Lincoln,  
                        including those under the UTE and ProQuip Loan  
                        Agreements.(1)

        4.37            Second Amendment to Loan Agreement, dated as of 
                        January 1, 1991, amending certain provisions of the 
                        ProQuip Loan Agreement.(2)

        4.38            Mortgage Modification and Allocation Agreement,  
                        dated January 1, 1991, executed by the registrant  
                        and Chase Lincoln.(2)

        4.40            Form of Payment Guaranty, dated as of September 1,  
                        1988 [as of September 30, 1988, in the case of  
                        ProQuip, Inc.], executed by the subsidiaries of the 
                        registrant in favor of Chase Lincoln and
                        guaranteeing payment of the registrant's         
                        obligations to Chase Lincoln, including those under 
                        the UTE and ProQuip Loan Agreements.(1)

        4.41            Form of Negative Pledge Agreement, dated as of  
                        September 30, 1988, executed by the subsidiaries of 
                        the registrant in favor of Chase Lincoln in      
                        connection with the ProQuip Loan Agreement.(1)

        4.42            Form of Security Agreement, dated as of September 
                        30, 1988, executed by the subsidiaries of the  
                        registrant in favor of Chase Lincoln and securing 
                        the registrant's obligations to Chase Lincoln,  
                        including those under the UTE and ProQuip Loan  
                        Agreements.(1)

        4.43            Acknowledgment, Confirmation and Further Agreement, 
                        made as of February 21, 1990, executed by the  
                        subsidiaries of the registrant in favor of Chase 
                        Lincoln with respect to the registrants obligations 
                        under the UTE and ProQuip Loan Agreements.(1)

        4.50            Debt Restructure Agreement, made as of           
                        February 21, 1990, between the registrant, Chase  
                        Lincoln, and Manufacturers Hanover Trust Company  
                        ("Manufacturers Hanover"), providing for a       
                        restructuring of the registrant's indebtedness to  
                        Chase Lincoln under the UTE and ProQuip Loan     
                        Agreements and of the registrant's outstanding  
                        indebtedness to Manufacturers Hanover (the "MHTCo.  
                        Existing Debt"), among other things.(1)

        4.55            Second Amendment to Debt Restructure Agreement,  
                        made as of January 1, 1991, between the registrant, 
                        Chase Lincoln, and Manufacturers Hanover, amending  
                        certain provisions of the Debt Restructure       
                        Agreement.(2)

        4.56            Second Debt Restructure Agreement, as of July 22,  
			1992, between the registrant, Chase Lincoln First 	
			Bank, N. A. ("CLFB"), and Chemical Bank 			
			("Chemical"), as successor in interest to 		
			Manufacturers Hanover Trust Company, providing for 	
			a restructuring of the registrant's indebtedness to	
			CLFB under the UTE and ProQuip Loan Agreements and 	
			of the registrant's outstanding indebtedness to 	
			Chemical, among other things.(3)

        4.63            Promissory Note, in the amount of $4,000,000 and  
			dated July 22, 1992, executed by the registrant to 	
			evidence its indebtedness to Chemical from time to 	
			time with respect to a line of credit in such
			amount (The Chemical Line of Credit).(3)



        4.64            Form of Payment Guaranty, dated as of July 24, 1992
                        executed by Masco Corporation in favor of Chemical and
                        guaranteeing payment of the registrant's obligations to
                        Chemical under the Chemical Line of Credit.(3)
                        
        4.65            Promissory Note, in the amount of $4,000,000 and  
			dated October 31, 1994, extending the maturity date	
			of the Promissory note dated July 22, 1992, 		
			executed by the registrant to evidence its 		
			indebtedness to Chemical under the Chemical 		
			Line of Credit.(8)

        4.66            Promissory Note, in the amount of $4,000,000 and
                        dated October 31, 1995, extending the maturity date
                        of the Promissory note dated October 31, 1994,   
                        executed by the registrant to evidence its
                        indebtedness to Chemical under the Chemical Line of 
                        Credit.(9)

        4.67            Form of Payment Guaranty, dated October 31, 1995
                        executed by Masco Corporation in favor of Chemical
                        and guaranteeing payment of the registrant's
                        obligations to Chemical under the Chemical Line of
                        Credit.(9)

        4.80            Amended and Restated Loan Agreement, dated as of
                        July 22, 1992, between the registrant and Chase
                        Lincoln First Bank, N.A., which amends, restates,
                        combines, and supersedes in full the UTE and the
                        ProQuip loan agreements.(3)

        4.81            Form of Note, in the amount of $5,000,000, executed
                        by the registrant on July 24, 1992, the July 22,
                        1992 Loan Agreement.(3)

        4.82            Form of Note, in the amount of $7,984,770,
                        executed by the registrant on July 24, 1992
                        to evidence its indebtedness to CLFB under
                        the July 22, 1992 Loan Agreement.(3)
                        
        4.83            Additional Mortgage Note, dated July 24, 1992,
                        executed by the registrant in favor of CLFB and
                        securing the registrant's obligation to CLFB under
                        the Loan Agreement.(3)

        4.84            Additional Mortgage and Security Agreement, dated
                        as of July 22, 1992, executed by the registrant in
                        favor of CLFB and securing the registrant's
                        obligations to CLFB.(3)
                        
        4.85            Mortgage Consolidation, Spreader, Modification
                        Extension and Security Agreement, dated July
			22, 1992, executed by the registrant and CLFB.(3)
                        
        4.86            Confirmation of Guaranties and Security
                        Agreements, dated July 22, 1992, executed
                        by subsidiaries of the registrant in favor
                        of CLFB with respect to the registrant's
                        obligations to CLFB.(3)

        4.87            Consent and waiver, dated December 21, 1993,
                        from CLFB to the registrant with respect to the
                        Amended and Restated Loan Agreement.(5)
                        
        4.88            Amendment One to Amended and Restated Loan
                        Agreement, dated as of August 1, 1994, between the
                        registrant and Chase Manhattan Bank, N. A. which
                        amends the Amended and Restated Loan Agreement to
                        defer the payment due on June 30, 1994.(6)

        4.89            Amendment Two to Amended and Restated Loan
                        Agreement with waiver, dated as of November
                        22, 1994, between the registrant and Chase Manhattan
                        Bank, N. A. which amends the Amended and Restated
                        Loan Agreement and waives any existing defaults.(8)
                        
        4.90            Additional Mortgage and Security Consolidation
                        Agreement, dated as of October 6, 1995 executed
                        by the registrant in favor of Chase Manhattan
                        Bank, N.A. and securing the registrant's
                        obligations to Chase Manhattan Bank, N.A.(9)

        4.91            Form of Note, in the amount of $340,000, executed by
                        the registrant on October 6, 1995 to evidence its
                        indebtedness to Chase Manhattan Bank, N.A. under
                        the July 22, 1992 Loan Agreement.(9)

        4.92            Amendment Three to Amended and Restated Loan
                        Agreement with waiver, dated as of November 30,
                        1995, between the registrant and Chase Manhattan
                        Bank, N. A. which amends the Amended and Restated
                        Loan Agreement and waives any existing defaults.(9)
                        
       10.1             Mechanical Technology Incorporated Restricted Stock
                        Incentive Plan-filed as Exhibit 28.1 to the
                        registrant's Form S-8 Registration Statement No.
                        33-26326 and incorporated herein by reference.

       10.3             MTI Employee 1982 Stock Option Plan.(1)

       10.4             Agreement, dated December 21, 1993, between UTE,
       			First Commercial Credit Corporation ("FCCC") and
                        the registrant, relating to an advance against
                        certain receivables.(5) 

       10.6             Agreement, dated June 2, 1993, between the
       			registrant and Mr. Harry Apkarian, Director,
                        regarding his employment.(5)

       10.7             Agreement, dated February 22, 1994, between the
                        registrant and Mr. R. Wayne Diesel, President and
                        Chief Executive Officer, regarding his   
                        employment.(8)

       10.8             Agreement, dated December 14, 1994, between FCCC
                        and the registrant, modifying the Agreement dated
                        December 21, 1993 relating to an advance against
                        certain receivables.(8)


       10.9             Agreement, dated May 30, 1995, between FCCC
                        and the registrant, extending the maturity of
                        the Agreement dated December 14, 1994 relating
                        to an advance against certain receivables.(9)

       10.10            Agreement, dated June 28, 1995, between FCCC and
                        the registrant, extending the maturity of the
                        Agreement dated December 14, 1994 relating to an
                        advance against certain receivables.(9)

       10.11            Agreement, dated September 21, 1995, between FCCC
                        and the registrant, extending the maturity of the
                        Agreement dated December 14,1994 relating to an
                        advance against certain receivables.(9)

       10.12            Agreement, dated October 25, 1995, between FCCC
                        and the registrant, extending the maturity of
                        the Agreement dated December 14, 1994 relating
                        to an advance against certain receivables.(9)

       10.13            Agreement, dated December 27, 1995, between FCCC
                        and the registrant, extending the maturity of the
                        Agreement dated December 14, 1994 relating to an
                        advance against certain receivables.(9)

       10.14            Mechanical Technology Incorporated Stock Incentive
                        Plan - included as Appendix A to the registrant's
                        Proxy Statement, filed pursuant to Regulation 14A,
                        for its December 20, 1996 Special Meeting of
                        Shareholders and incorporated herein by reference. (10)

       10.15            Agreement, dated December 6, 1996, between the
			registrant and Mr. Martin J. Mastroianni, President
			and Chief Operating Officer, regarding his
			employment. (10)

       10.16            Settlement Agreement and Release, dated as of  
			December 27, 1996, between First Albany Companies	
			Inc. and the registrant, with respect to the		
			registrant's indebtedness and obligations under the	
			Agreement dated December 14, 1994 between FCCC and	
			the registrant relating to an advance against		
			certain receivables. (10)

       10.17            Agreement, dated March 14, 1997, between the     
                        Registrant and Mr. James Clemens, Vice President
                        and General Manager of Ling Electronic, Inc.,    
                        regarding his employment. (11)

       10.18            Limited Liability Company Agreement of Plug Power,
                        L.L.C., dated June 27, 1997, between Edison      
                        Development Corporation and Mechanical Technology,
                        Incorporated. (12) (13)

       10.19            Contribution Agreement, dated June 27, 1997,
                        between Mechanical Technology, Incorporated and  
                        Plug Power, L.L.C. (12) (13)



       10.20            Asset Purchase Agreement, dated as of September 22,
                        1997, between Mechanical Technology, Incorporated
                        and Noonan Machine Company. (12)

       21               Subsidiaries of the registrant. (12)

       27               Financial Data Schedule (12)
______________________

Certain exhibits were previously filed (as indicated below) and are 
incorporated herein by reference.  All other exhibits for which no other 
filing information is given are filed herewith:

(1) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report, as amended, for its fiscal year ended 
September 30, 1989.

(2) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-Q Report for its fiscal quarter ended December 29, 
1990.

(3) Filed as an Exhibit (bearing the same exhibit number) to the
registrant's Form 10-Q Report for its fiscal quarter ended June 27, 
1992.

(4) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for its fiscal year ended September 30, 
1991.

(5) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for its fiscal year ended September 30, 
1993.

(6) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-Q Report for its fiscal quarter ended July 2, 1994.

(7) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 8-K Report dated November 23, 1994.

(8) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for its fiscal year ended September 30, 
1994.

(9) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for its fiscal year ended September 30, 
1995.

(10) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for its fiscal year ended September 30, 
1996.

(11) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 8-K Report dated May 12, 1997.

(12) Filed as an Exhibit (bearing the same exhibit number) to the 
registrant's Form 10-K Report for the fiscal year ended September 30, 
1997.



(13) Refiled herewith after confidential treatment request with respect to
certain schedules and exhibits was denied by the Commission.  Confidential
treatment with respect to certain schedules and exhibits was granted.

























































                                  SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange 
Act of 1934, the registrant has duly caused this report to be signed on its 
behalf by the undersigned, thereunto duly authorized.

                                  MECHANICAL TECHNOLOGY INCORPORATED   


Date: August 13, 1998       By:  /s/ George C. McNamee                   
     ------------------         ---------------------------------------
                                  George C. McNamee
                                  Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the registrant and 
in the capacities and on the dates indicated.

SIGNATURE                   TITLE                                  DATE  
- ---------                   -----                                  ----
/s/ George C. McNamee       Chairman of the Board of Directors   08/13/98
- -------------------------
George C. McNamee
 
/s/ Cynthia A. Scheuer      Chief Financial Officer
- -------------------------   (Principal Financial and Accounting
Cynthia A. Scheuer          Officer)                                 " 

/s/ Dale W. Church          Director                                 "    
- -------------------------
Dale W. Church

/s/ Edward A. Dohring       Director                                 "    
- -------------------------
Edward A. Dohring

/s/ Alan P. Goldberg        Director                                 "    
- -------------------------
Alan  P. Goldberg

/s/ E. Dennis O'Connor      Director                                 "    
- -------------------------
E. Dennis O'Connor

/s/ Walter L. Robb          Director                                 "    
- -------------------------
Dr. Walter L. Robb

/s/ Beno Sternlicht         Director                                 "    
- -------------------------
Dr. Beno Sternlicht