Friday, 28 May 2010

X-51A Races To Hypersonic Record

The Boeing X-51 is an unmanned scramjet demonstration aircraft for hypersonic (Mach 6, approx. 4,000 mph or 6,400 km/h at altitude) flight testing. The X-51 WaveRider program is run as a cooperative effort of the United States Air Force, DARPA, NASA, Boeing and Pratt & Whitney Rocketdyne. The program is managed by the Propulsion Directorate within the United States Air Force Research Laboratory (AFRL).[2] The X-51 had its first captive flight attached to a B-52 in December 2009. The test vehicle successfully completed its first free-flight on Wednesday.

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