A recent test flight of the Lockheed Martin HAWC air-breathing hypersonic missile set a record for scramjet propulsion at hypersonic speeds, achieving about 327 seconds of combustion, versus 200 seconds in a 2010 test of the Boeing X-51 Waverider.
Boeing has revealed an updated concept for its Valkyrie reusable, unmanned hypersonic aircraft that indicates new design approaches for inlets and shaping. Shown in an artist’s concept illustration provided to Air Force Magazine—and in the form of a model at the American Institute of Aeronautics ...