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. ...
It confirmed that scramjets can operate where rockets once had the field to themselves,” said Harry J. Kazianis, citing the technological hubris of NASA’s X-43A Hyper-X program. In 2004, the ...
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