The North American X-15 - The Rocket Plane That Made Pilots Into Astronauts
The North American X-15 set a crewed aircraft speed record of Mach 6.72 in 1967 that still stands, and flew thirteen missions above the recognized boundary of space.
VectorThe North American X-15 set a crewed aircraft speed record of Mach 6.72 in 1967 that still stands, and flew thirteen missions above the recognized boundary of space.
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