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Mach 9.6 X-43A ‘Hypersonic Scramjet’ Has a Message for Any Military on Earth

A, an unmanned scramjet testbed, set the world record for an air-breathing aircraft by hitting Mach 9.6 in 2004. -Launched ...
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NASA’s X-43A: The Mach 9.6 Hypersonic Marvel Explained in 1 Word

Key Points - NASA's X-43A hypersonic research vehicle, part of the "Hyper-X" program, still holds the world record for an air-breathing aircraft, achieving a speed of Mach 9.64 (6,363 mph) in its ...