An unmanned NASA jet screamed into the record books high over the Pacific Ocean by reaching speeds of almost 7,000 mph, brightening hopes that humans might one day be able to fly across a continent in ...
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. -Its success hinges on a revolutionary and highly classified Turbine-Based ...
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