It was followed by the X-43, which flew at Mach 9.6 (10,240 km/h), making it the fastest aircraft ever flown. One of NASA’s X-43s is attempting to break new records, reaching speeds of several ...

The jet will be an unmanned hypersonic aircraft. Lockheed claims ... it may not be long before the fastest plane ever hits the skies. More from Military & Defense In 2013, Lockheed Martin ...

INCREDIBLE plans have been revealed for a hypersonic superjet dubbed "Son of Blackbird" that could soon become the world's fastest ... in the way the military uses their aircraft.