X-51A Waverider hypersonic aircraft test flight fails
A flight test of the the X-51A Waverider scramjet experimental aircraft, ended abruptly as a faulty control fin caused the craft to be lost over the Pacific. Artists concept of the X-51A Waverider. Credit: US Air Force
The X-51 Waverider, a cooperative effort of the Air Force, DARPA, NASA, Boeing and Pratt & Whitney Rocketdyne, was dropped from a B-52 bomber off the coast of California, at an altitude of 15,240 meters (50,000 ft.), but a faulty control fin prevented it from starting its unique “airbreathing” scramjet engine.
The hypersonic vehicle is capable of hitting a top speed of Mach 6 (4,300mph / 6,900km/h).
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