NASA's X-43A demonstrator reaches Mach 7 in successful flight

NASA achieved the fastest flight of an air-breathing aircraft March 27 with the second flight attempt of its unmanned X-43A "Hyper-X" demonstrator, which reached speeds above Mach 7, according to the agency. "We can claim an air-breathing powered record today, no doubt about it," NASA Langley Hyper...

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