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Undoubtedly, A320 single-aisle series aircraft, which consists of A3 18, A3 19, A320 and A32 1, has become the best-selling and most popular aircraft in the world. Airbus A320neo series aircraft is an improved version of A320 series aircraft. It is equipped with a new efficient engine and Airbus's latest shark fin winglet. Compared with the current A320, A320neo can reduce the fuel consumption in France by 15%. On September 25th, 20 14 local time in France, A320neo successfully completed its first flight. 12 o'clock sharp, the first A320neo plane with the number MSN6 10 1 took off from Toulouse Branyak Airport, where Airbus headquarters is located, and returned to the airport smoothly after about two and a half hours' flight. The total length of the aircraft is 37.57m, the cabin length is 27.5 1m, the fuselage width is 3.95m, the maximum cabin width is 3.70m, the wingspan (with shark fins) is 35.80m, the height is1.76m, the tread is 7.59m and the tread is/kloc-. PW 1 100G-JM engine produced by Pratt & Whitney for A320neo has a fan size of 8 1 inch and a bypass ratio of 12.5. The size of the Leap 1A engine fan produced by CF International Company for A320neo is 78 inches, and the bypass ratio is 1 1. Shark fin winglet is a new generation of large winglet used in A320 series aircraft, and it is the standard configuration of A320neo series aircraft. It is made of composite material and 2.4 meters high. Shark fin winglets can significantly reduce aircraft fuel consumption and emissions by 4%.