North American X-15 Pilot's Flight Operating Instructions

United States Air Force, North American Aviation o

Bog | Engelsk

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North American Aviation's X-15 rocket plane flew at Mach 6.72 and at altitudes above 67 miles -- at the threshold of space. The men who piloted this amazing plane became the USAF's first astronauts. Powered by an XLR-99 engine capable of producing…