North American X-15

The North American X-15 rocket plane was perhaps the most important of the USAF/USN X-series of experimental aircraft. Although not as famous as the Bell X-1, the X-15 set numerous speed and altitude records in the early 1960s, reaching the edge of space and bringing back valuable data that was used in the design of later aircraft and spacecraft.

Related Topics:
North American - Rocket plane - USAF - USN - X-series - Experimental aircraft - Bell X-1 - 1960s - Edge of space - Aircraft - Spacecraft

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During the X-15 program, 13 flights met the US criterion for a spaceflight by passing an altitude of 50 miles (80 km) and the pilots were accordingly awarded astronaut status by the USAF. Out of these, 2 also qualified for the international FAI definition of a spaceflight by passing the 62.1 miles (100 km) mark.

Related Topics:
Spaceflight - Astronaut - FAI

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