Engineering Behind SR-71 Blackbird Explaining
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The Lockheed SR-71 “Blackbird” is a long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. source/image(PrtSc): Real Engineering The planes could reach speeds of up to 2,200 mph or Mach 3. Not only would they reach those speeds, the planes could sustain them for over an hour at a time.
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