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SR-71 Facts: 29 Details That Might Surprise You

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Liftoff and Touchdown Speeds

SR-71 Facts
NASA

Liftoff speed was roughy 240 mph. Landing speed was roughly 175 mph. Gross takeoff weight is about 140,000 pounds, including a possible fuel weight of 80,280 pounds. The airframes are built almost entirely of titanium and titanium alloys to withstand heat generated by sustained Mach 3 flight. Aerodynamic control surfaces consist of all-moving vertical tail surfaces, ailerons on the outer wings, and elevators on the trailing edges between the engine exhaust nozzles.