飞机在双面横坡跑道上的航向稳定性

Directional stability of aircraft running on runway with two transverse slopes

分析了飞机在双面横坡机场跑道上的受力情况 ,通过建立飞机在双面横坡上的运动方程 ,得出了飞机航向稳定性与机场双面横坡跑道坡度值的关系。结果表明横坡对航向稳定性有一定的影响 ,在现行规范取值时 ,影响非常有限。结论可用于指导机场跑道的横坡设计。

In order to properly decide transverse grads of runway, this paper researches the directional stability of aircraft that runs on the runway with two transverse slopes.On the basis of analyzing the forces acting on the aircraft, this paper sets up the motion equation of the aircraft, also puts forward the calculation method of the sideslip angle,using parameter of a kind of aircraft,gets the relation between the aircraft directional stability and the value of runway grads.Results show that transverse grades make very limited influence on the aircraft,when the value of grads is in the range of current criteria(0.8%~1.2%).Even the value of grads reaches 4%,this kind of aircraft keeps its directional stability well.Conclusions are considered in new criteria. 3 figs, 2 refs.