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The Air Force test facility at Groom Lake, Nevada—better known as Area 51—has harbored a wide variety of experimental aircraft the Pentagon would rather keep away from the prying eyes of the public.
No manned aircraft in operational service has matched the remarkable long-distance Mach 3 cruises of the Blackbird, until now?
On October 30, 1967, a CIA spy-plane soared eighty-four thousand feet over Hanoi in northern Vietnam, traveling faster than a rifle bullet at over three times the speed of sound.
The SR-72 depicted in Lockheed’s concept art was described as capable of cruising at six times the speed of sound.
The CIA’s twelve ultra-fast A-12 jets were doomed to a brief operational career after the first flight in 1962.