The YY-20 has excellent flight performance and fuel-carrying capacity, which enhances the Air Force’s sustained combat and long-range strike capabilities. The YY-20 has a takeoff weight of 220 tons and can carry over 100 tons of fuel. Each J-11 aircraft has an internal fuel capacity of 9 tons, requiring around 7 to 8 tons of refueling. The YU-20 can transfer more than 50 tons of fuel to other aircraft, which is equivalent to refueling about six or seven aircraft