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booster rocket on March 27, 2004. It was launched by NASA Dryden's B-52 at about 40,000 feet. The booster accelerated the Hyper-X research vehicle to the test conditions (Mach 7 or 10) at approximately 100,000 feet, where it separated from the booster and flew under its own power. Orbital Science's Launch Vehicles Division in Chandler, Arizona. builds the Hyper-X launch vehicles.