Most of the initial STOVL tests occured over a ten feet deep conrete pit covered with a thick metal grate. The pit reduced the ground effects produced from the engine and lift fan, and it allowed engineers to study vertical flight modes while the aircraft was on the ground. [LMTAS photo]
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on 2011-Dec-06 06:14:43 Check the Oil said nozzle hell
Some comments were made in the F-22 Forum "Windshield tour of Elmendorf" re: intentions to use the rectangular nozzles and some other tricks to eliminate the JSF's rear radar sig issue. I'm "baffled" by this, as the 10-12% loss of thrust would seem to be unacceptable for the F-35. I am commenting on older posts but I think the issue is current.
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News: F-35 STOVL team completes successful gearbox test [2007-05-07]
Pratt & Whitney and Rolls-Royce successfully completed the first phase and initiated phase two of the F135 short-takeoff/vertical-landing engine LiftFan gearbox qualification test.
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