Flight International online news 15:00GMT: Boeing said today it has successfully demonstrated boost phase performance of its hypersonic strike demonstrator vehicle, HyFly.
Boeing, which is carrying out the project in partnership with the Defense Advanced Research Projects Agency (DARPA) and the Office of Naval Research, launched the vehicle over the US Navy's sea range at the Naval Air Weapons Center at Pt Mugu, California on 26 August.
The company says the solid rocket booster successfully ignited and accelerated the HyFly to a speed of greater than Mach 3. The test was the second of five flight tests scheduled from 2005 to 2007. In the first test, on 26 January this year, an unpowered HyFly vehicle demonstrated safe separation from an F-15E, as well as vehicle guidance and control functions. During the next three flight tests, the HyFly vehicles will be powered by a booster and a dual combustion ramjet (DCR) engine at speeds of up to Mach 6.

Source: Flight International