The Defense Department issued a 90-day stop-work order to F-136 engine developers General Electric and Rolls Royce, March 24, 2011. The order will go into effect once the engine program's funding runs out at the end of March 2011. DOD wants to terminate the F-136 program, saying it doesn't need the engine to power the F-35 strike fighter since Pratt and Whitney's F135 engine is maturing well. The F136, however, continues to enjoy support among lawmakers who favor maintaining engine competition for the F-35. Here, AF-1, one of the F-35A test aircraft, during a test sortie in May 2010.
Daily Report: Read the day's top news on the US Air Force, airpower, and national security issues.
Daily Report: Read the top news on the US Air Force, airpower, and national security issues.
An F-35A Lightning II assigned to Hill AFB, Utah,
conducts a training flight with F-16 Fighting Falcons assigned to Kunsan
AB, Republic of Korea, over the city of Gunsan, on Dec. 1, 2017,
in preparation for Vigilant Ace 18.
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