Breaking Mach 9.6 with an air-breathing engine wasn’t just a speed stunt. It confirmed that scramjets can operate where rockets once had the field to themselves,” said Harry J. Kazianis, citing the ...
A’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 seconds before gliding to splashdown. -The demo ended ...