Lockheed Martin announces plans for SR-72 hypersonic spy drone »

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Aircraft experts and military aficionados have cause to rejoice now that Lockheed Martin has debuted the SR-72 unmanned spy plane, the long-awaited successor to the SR-71 Blackbird and potentially the first hypersonic craft to enter service. Source Main page (current trends)

More about: hypersonic, Lockheed Martin, unmanned spy plane

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