A Method of Calculating the Accelerate-Stop Distance for Large Civil Aircraft on Contaminated Runways

The takeoff stage is one of the critical phases of flight. The accurate calculation of takeoff performance is an important guarantee for the safety of the aircraft operation. The calculation of accelerate-stop distance on contaminated runways is of great significance for calculating takeoff performance of civil aircraft. By referring to civil aviation regulations and considering the actual operating conditions and the braking measures that can be taken in accelerate-stop distance, the calculation model of accelerate-stop distance on contaminated runways is established on the basis of the model of the dry runway. The accelerate-stop distance is calculated by numerical integration and numerical averaging over segments of the distance. The simulation calculations are performed by taking a domestic aircraft model for example. The results show that the method is acceptable and can be applied to engineering practices.