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North American X-15A-2 Hypersonic Research Aircraft. Maximum speed: 4,520 mph (Mach 6.7). Ceiling: 365,200 feet (67 miles). Pilots who flew this aircraft above 50 miles earned astronaut wings. This example reached Mach 6.7 in October 1967, becoming the fastest X-15.
Copyright 2003-2017 Robert W. Peterson All Rights Reserved. bob@petersonsemail.us
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