Article Summary - NASA’s Mach 10 Dream: Can the X-43A’s Legacy Go Operational? -In 2004, NASA’s X-43A set the air-breathing speed record at Mach 9.6, validating scramjet combustion but only for 10 ...
Despite claims of Mach 2.54, pilots report that the fastest speeds achieved in practice are Mach 2.25–2.3 in brand-new ...
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