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米格-21战斗机是前苏联以及华约各成员国或者许多与前苏联有良好外交关系国家的第二代(美标)主力战斗机。1966年1月中国首架歼七首飞成功,此后,歼七-系列战斗机成为保卫中国蓝天的主要力量之一,并且中国很多现代的三代机都是以米格-21为基础发展而来。为了纪念传奇的米格-21飞机暨中国歼七飞机首飞50周年,西安市阎良区科技文体广电旅游局、航空城青
The MiG-21 fighter plane is the second-generation (American standard) main fighter aircraft of the former Soviet Union and member countries of Warsaw Pact or many countries that have good diplomatic relations with the former Soviet Union. Since January 1966, China’s first J-7 first flight succeeded. Since then, the J-7 fighter has become one of the major forces for defending China’s blue sky. Many of China’s modern third generation machines are based on the MiG-21. In commemoration of the legendary MiG-21 aircraft and the fiftieth anniversary of the first flight of the Chinese F-7 aircraft, Xi’an Yanliang District Science and Technology Culture, Radio, Film and Tourism Bureau, Aviation City Youth