X-15A 3 F-49Spacecraft:X-15A No. 3 Launch Vehicle: NB-52 Launched: 28 Sep 1965 |
Prime Crew |
Description: 8th X-15A manned suborbital |
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J B McKay 
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| Altitude: 55.9 miles (90.0 km)
The International Aeronautical Federation recognizes a flight above 100 kilometers (62.14 statute miles) as being a spaceflight. The United States recognizes a flight above 50 statute miles (80.46 kilometers) as being a spaceflight. The lowest recorded perigee of a satellite orbit is 78 kilometers (48.5 statute miles). References:
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