Pratt & Whitney's F135 Program Completes 1,000th Test Hour
Earlier this month the Pratt & Whitney led F135 System Development and Demonstration (SDD) team completed the program's 1,000 test hour. This testing milestone represents the cumulative hours of F135 SDD Testing and includes both the Conventional Take-Off and Landing (CTOL/CV) engine tests, as well as the Short Take-Off and Vertical Landing (STOVL) system test runs.
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