An aircraft capable of hitting 4,520 mph (nearly seven times the speed of sound) is ludicrous to even think about, but the North American X-15 achieved this, defying comparison to any other aircraft ...
The X-15 wasn’t just a plane – it was a rocket with wings. Designed at the height of the space race, it became the fastest aircraft ever flown, reaching speeds of Mach 6.7 and altitudes over 350,000 ...
An important part of data collection for the United States space program, the North American X-15 had astonishing performance utilizing the technology of the 1950s and 60s. The North American X-15 was ...
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