Key Points and Summary - The SR-71 Blackbird, the world's fastest air-breathing manned aircraft, held its speed record not because of its airframe's limits, but due to a crucial safety restriction on ...
National Security Journal on MSN
The Air Force’s Mach 6 SR-72 ‘Son of Blackbird’ Is Real and Might Already Be Flying
The legendary SR-71 is getting a hypersonic, unmanned successor: the SR-72 “Son of Blackbird,” capable of Mach 6 speeds ...
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