Orbital's Hyper-X Launch Vehicle was successfully tested
Saturday, in a flight that originated from NASA's Dryden Flight
Research Center located at Edwards Air Force Base (CA). The Hyper-X
launch vehicle uses a modified first stage rocket motor, originally
designed and flight-proven aboard Orbital's Pegasus space launch
vehicle, to accelerate NASA's X-43A air-breathing scramjet to seven
times the speed of sound.