EAST HARTFORD, Conn., Jan. 3, 2012 /PRNewswire/ -- The U.S. Department of Defense has awarded Pratt & Whitney an undefinitized contract award (UCA) not to exceed $1,122,306,649 for F135 production engines to power the F-35 Lightning II. Pratt & Whitney and the DoD have reached a tentative agreement on key terms for the low rate initial production (LRIP) 5 contract which contains fixed-price and cost-plus incentive fee elements. A total of $358,597,078 is being obligated at time of award, in addition to the $138,800,000 obligated in 2011 for advanced acquisition materials. This LRIP contract includes production engines, spare parts, program management, engineering support for production, sustainment and field support for the F135 engines. Pratt & Whitney is a United Technologies Corp. (NYSE: UTX ) company.