Method for calculating runway length of military airplanes of new models

The invention discloses a method for calculating a runway length of military airplanes of new models, and relates to a military airplane runway length calculation method. The method comprises the following steps: firstly, analyzing the relationship of speed and distance changing along with time in a taxiing process, solving coefficients A1, B1 and C1 of an airplane in a three-point taxiing stage and coefficients A2, B2 and C2 of the airplane in a two-point taxiing stage, carrying out outputting through output modules Out1, Out2 and Out3, and respectively finishing simulink models of a takeoffprocess and a landing process of the airplane, wherein the lower part is a two-wheel skating process; and calculating the ground taxiing distance of the aircraft during normal takeoff or landing according to the second-order differential equation set, the initial condition and the termination condition of the normal takeoff or landing taxiing process of the aircraft. The calculation result is accurate, and the movement ru