NASA released video footage of the SR-71 Blackbird, the high-altitude recon aircraft capable of reaching speeds over Mach 3. More from Military & Defense NASA released video footage of the SR-71 ...
In 2013, Lockheed Martin announced development of the successor to the SR-71 Blackbird spy plane. The SR-71 was capable of reaching speeds over three times the speed of sound, and the SR-72 is ...
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