The Lockheed SR-71 "Blackbird" is a long-range, Mach 3+ strategic reconnaissance military aircraft that was operated by the United States Air Force. It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division. To me it's the most beautifully designed aircraft ever - where art and industry meet in perfect harmony.
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