- The X-15 is the only vehicle so far that has been flown by a pilot (rather than a computer) into space and back. It routinely survived re-entry temperatures over 2,000 degrees Farenheit.- The X-15 is the fastest airplane ever built-over twice as fast as the SR-71 Blackbird! It was also the highest-flying aircraft ever built; five Air Force pilots became astronauts flying the X-15 into near-space.- Contains an incredible number of never-before-seen images and new color profile drawings.

Hypersonic: The Story of the North American X-15 2003, Specialty Press (MN)

ISBN-13: 9781580070683