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Flying Atop SR-71 Blackbird, Meet US' Top Secret Spy Drone That No One Knew Existed Until It Was Abandoned
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The list of the fastest and the highest known flights ever recorded by the Lockheed Blackbird family - The Aviation Geek Club
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Blackbird's Top Speed was Officially Mach 3.2 but the SR-71 was Much Faster Than That,” former Skunk Works Engineer Says - The Aviation Geek Club
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