The J-8 ? (Chinese code: Jmur8 ?, English: Shenyang Jmur8 ?, NATO code: Finback, translation: baleen whale) fighter is an improved J-8 high-altitude high-speed fighter developed by Shenyang aircraft Industry Corporation of China (Shenyang aircraft Industry Corporation). On June 12, 1984, the J-8 II prototype successfully flew for the first time. The design of the aircraft was finalized on March 18, 1988, and on October 15 of the same year, the J-8 II aircraft design was formally approved by the military Industry Product typing Committee. Instead of the aerodynamic shape of the nose intake, the J-8 ? fighter adopts an all-metal semi-hard shell fuselage, air intake on both sides, and the aerodynamic layout of a flat tail and double ventral fins under the triangular wing, which has a good comprehensive combat capability and can carry out a variety of combat missions. it has the ability of air combat, air interception and ground attack under complex weather conditions in daytime and night. [1] the Chinese name J-8 ?, the foreign language name Shenyang Jmur8 ?, the time of development, 1980, the time of finalization, the time of China, 1988.