National Security Journal on MSN
The Mach 6 SR-72 Darkstar ‘Scramjet’ Has a Message for the U.S. Air Force
The secretive SR-72 “Darkstar” is Lockheed Martin’s ambitious project to build a Mach 6+ hypersonic ISR and strike aircraft. ...
National Security Journal on MSN
Mach 9.6 X-43A ‘Hypersonic Scramjet’ Has a Message for Any Military on Earth
A, an unmanned scramjet testbed, set the world record for an air-breathing aircraft by hitting Mach 9.6 in 2004. -Launched ...
NASA's X-59 supersonic-but-quiet jet soared over the Southern California desert on Tuesday in the first test flight of an ...
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