National Security Journal on MSN
NASA’s X-43A flew at Mach 9.6 and 110,000 feet: No air-breathing aircraft has gone faster in the 22 years since that flight
NASA’s X-43A scramjet aircraft hit Mach 9.64 at 110,000 feet in November 2004—and that record for an air-breathing aircraft still stands more than two decades later. Despite all the talk about America ...
Key Points and Summary - The secretive SR-72 "Darkstar" is Lockheed Martin's ambitious project to build a Mach 6+ hypersonic ISR and strike aircraft. -Its success hinges on a revolutionary and highly ...
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