On December 22, 1964, the Lockheed SR-71 Blackbird Mach 3+ strategic reconnaissance aircraft started for her maidenflight. Since 1976, it holds the world record for the fastest air-breathing manned aircraft. Predecessors The SR-71’s predecessor was the reconnaissance aircraft Lockheed U-2. But it was known to be very slow and was mostly used by CIA. Shortly after the introduction of the U-2, the CIA began to have serious doubts about its ability to fly over…Read more
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