The Lockheed Martin F-35 Lightning II has begun hover pit testing powered by Pratt & Whitneys F135 propulsion system. Hover pit testing of the F135 Short Take Off and Vertical Landing (STOVL) variant demonstrates integration of Pratt & Whitneys flight-proven F135 engine with Rolls Royce-designed STOVL lift components.
cool HD! this is really coooolll
ymefilms 2 years ago