SR-71 reconnaissance aircraft (English: SR-71, nickname: blackbird, translation: blackbird), is a jet long-range high-speed strategic reconnaissance aircraft used by the U.S. air force.
SR-71 reconnaissance aircraft has used a lot of advanced technology at that time, and titanium structure, turbojet / stamping variable cycle engine is still advanced. SR-71 is the first practical jet aircraft to break through the thermal barrier successfully. No one has been shot down by enemy aircraft or air defense missile in the actual combat record.
The SR-71 reconnaissance aircraft was developed in 1963 by the skunk factory of Lockheed company in the United States. It first flew in 1964 and served in 1966, with a total of 32 production units. Retired in 1990, part of SR-71 was returned to the army in 1995, and the mission was launched in 1997. Retired permanently in 1998, part of SR-71 was displayed in the museum. Only one sr-71a and one sr-71b used by NASA's Dryden Flight Research Center were used for research.
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actually its engines were not turbojet but a ramjet