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5 Pictures of Lockheed Martin’s SR-72 Blackbird, the SR-71 Successor

Reading Time: < 1 minute Here’s a first look at the SR-71 successor, Lockheed Martin’s SR-72 Blackbird. Unlike its predecessor, this one will use a new hypersonic engine design that combines turbines and ramjets, making the unmanned SR-72 twice as fast as its predecessor with a cruising speed of Mach 6. According to Leland, a Mach 6 platform would not […]