Tags: Aircraft.

The Lockheed SR-71 Blackbird was an advanced long-range Mach 3+ strategic reconnaissance aircraft. It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division. Clarence Kelly Johnson was responsible for many of the design’s innovative concepts. During reconnaissance missions the SR-71 operated at high speeds and altitudes to allow it to outrace threats.

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