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Lockheed Martin announces plans for SR-72 hypersonic spy drone
02.11.2013. | 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.
Plans for the SR-72 drone were first unveiled Friday in an Aviation Week article which revealed that......
