UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

FORM 10-Q/A

For the quarterly period ended March 31, 2011

For the transition period from             , 200    , to             , 200    .

Commission File Number 333-109118

Turbine Truck Engines, Inc.

(Exact Name of Registrant as Specified in its Charter)

46600 Deep Woods Road, Paisley Florida 32767

(Address of Principal Executive Offices)

(386) 943-8358

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(g) of the Act:

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act 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  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ¨    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definition of “accelerated filer, large accelerated filer and smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

There were 52,774,743 shares of the Registrant’s $0.001 par value common stock outstanding as of May 13, 2011.

Documents incorporated by reference: none

EXPLANATORY NOTE

Turbine Truck Engines, Inc. [the “Company”] is filing this Amendment No. 1 to its Quarterly Report on Form 10-Q for the quarter ended March 31, 2011, filed with the Securities and Exchange Commission on May 13, 2011, to amend the Company’s shares outstanding . The Company stated 49,113,995 shares outstanding, and it should have been 52,774,743 shares outstanding.

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned, thereto duly authorized: