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The SR-72 Darkstar is a Mach 6 headache for the US military

The SR-72 “Son of Blackbird” is one of the most nebulous and mysterious projects currently underway by Lockheed Martin’s ...
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Here's why the Lockheed SR-72 has the US Air Force excited

The proposed Lockheed Martin SR-72, often nicknamed "Darkstar", or the “Son of Blackbird”, has captured renewed attention within the United States Air Force because it promises a capability the ...