Yun-20 (Chinese code: Ymur20, code name : Kunpeng, English: Xian Ymur20), is a new generation of large military transport aircraft researched and manufactured in China, which made its first flight on January 26th, 2013 As a large multi-purpose transport aircraft, the plane can carry out long-distance air transport tasks for all kinds of materials and personnel under complex meteorological conditions. Compared with the Il-76 in active service of the Chinese Air Force, the engine and electronic equipment of the Y-20 have been greatly improved, the deadweight has also been increased, and the take-off and landing performance of the short runway is excellent.The research and development of the Y-20 aircraft refers to the aerodynamic shape and structural design of the Russian Il-76 and integrates some of the characteristics of the American Cmur17. Yun-20 adopts conventional layout, cantilever upper single wing, leading edge swept back, wingless winglet high extensibility, high reliability and safety As a large multi-purpose transport aircraft, Y-20 can carry out long-distance air transport tasks for all kinds of materials and personnel under complex meteorological conditions