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Lockheed U-2
The Lockheed U-2, nicknamed "Dragon Lady", is a single-jet engine, ultra-high altitude reconnaissance aircraft operated by the United States Air Force (USAF) and previously flown by the Central Intelligence Agency (CIA). It provides day and night, very high-altitude (70,000 feet; 21,000 m), all-weather intelligence gathering.〔Drew, Christopher. ("U-2 Spy Plane Evades the Day of Retirement." ) ''The New York Times'', 21 March 2010. Retrieved 23 March 2010〕 The U-2 has also been used for electronic sensor research, satellite calibration, and communications purposes.
Early versions of the U-2 were involved in several events through the Cold War, being flown over the Soviet Union, China, Vietnam, and Cuba. In 1960, Gary Powers was shot down in a CIA U-2A over the Soviet Union by a surface-to-air missile. Another U-2, piloted by Major Rudolf Anderson, Jr., was lost in a similar fashion in the Cuban Missile Crisis of 1962.
The U-2 is one of a handful of aircraft types to have served the USAF for over 50 years. The newest models (TR-1, U-2R, U-2S) entered service in the 1980s. The current model, the U-2S, received its most recent technical upgrade in 2012. They have taken part in post-Cold War conflicts in Afghanistan and Iraq, and supported several multinational NATO operations.
==Development==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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