
The U.S. Air Force has estimated a development cost of nearly $6.7 billion for the Adaptive Engine Transition Program (AETP) to provide more range and improved thermal management/engine performance and increased weapons load for the Lockheed Martin [LMT] F-35A, but the service has not released a breakout of such estimated costs. Pratt & Whitney [RTX] builds the F135 engine for the three versions of the F-35. The House Appropriations Committee, in a report on the committee's version of the fiscal…