(Chinese number: Y-20, Kunpeng, English nickname:: Xian Y-20) is a new generation of jet aircraft military transport aircraft Chinese independent research and development, the design, the first aircraft Institute of AVIC Xi'an aircraft industry group (Xi Fei) are mainly manufacturing, and in January 26, 2013 the successful first flight. [1] -20 and the Chinese air force active IL -76 comparison, the engine and electronic equipment has been greatly improved, carrying capacity is also improved, short runway landing performance is excellent. -20 aircraft R & D reference aerodynamic configuration and structural design of the Russian IL -76, and integrate some of the characteristics of the United States C-17. -20 uses the conventional layout, cantilever monoplane, and leading-edge sweep winglets, maximum takeoff weight of 220 tons, more than 66 tons, a maximum speed of over 800 km, >7800 km range, a service ceiling of 13000 meters. With high scalability, high reliability and security, [2]. As a large multi purpose transport aircraft, -20 can carry out long distance air transportation tasks for various materials and personnel under complicated weather conditions