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The aircraft featured so many unusual components ... While not as flashy was the SR-71's mighty engines, the windshields remained unique and instrumental in the SR-71's use as a viable spy ...

The first type jet engine was a turbojet that went into production ... It was the Pratt & Whitney J58 turbojet that gave the SR-71 Blackbird such as fast top speed, after all.

In 2013, Lockheed Martin announced development of the successor to the SR-71 Blackbird spy plane ... Lockheed calls the SR-72 a "game changer." The jet will be an unmanned hypersonic aircraft.

Venus Aerospace is building a hypersonic aircraft that can carry about a dozen passengers, traveling at Mach 9, nine times the speed of sound. The Stargazer, ...