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The Idea for Pegasus - First U.S. Air-Launched Orbital Launch Vehicle

Dr. Antonio Elias (chief engineer for Pegasus) shares how the idea for Pegasus came to be - on a napkin. Pegasus was the U.S.'s first air-launched orbital launch vehicle. The Pegasus is carried by a modified Lockheed L-1011 or other plane up to its launch altitude of 12,000 m. (39,000 ft.). The three-stage, solid-fuel Pegasus is then released, and its rocket engine ignites and accelerates it to orbital velocity. It can place a small 450 kg (1,000 lb)-class satellite into Earth orbit. A Pegasus XL launch vehicle is on display at the Museum's Stevn F. Udvar-Hazy Center in Chantilly , VA More: http://www.nasm.si.edu/collections/artifact.cfm?id=A20040262000
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