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 ...

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 ...

So, Blackbird was not hypersonic as its anticipated successor, the SR-72, is set to be. Instead, it was a supersonic plane. But that was fine for the era it was serving in. The Blackbird is ...

The legendary SR-71 Blackbird retains the record for America’s fastest manned aircraft—ever. While almost everyone has heard of the American-made F-22 Raptor and F-35 Lightning II platforms, many are ...