以微分形式 ,推导出了在停车迫降中 ,逆风会使下滑距离缩短、飞机四转弯改出位置后移两种情况下四转弯改出高度的增量公式及计算方法。通过实例进行了定量分析 ,给出了逆风使下滑距离缩短和航线四转弯改出位置后移而使四转弯改出所需高度增加的一般规律 ,为成功实施迫降 ,保证飞行安全 ,提供了准确的理论依据。 In the form of differential, the increment formula and calculation method of four-turn rerouting height in the two scenarios of the parking pressure drop, the upwind distance will be shortened and the aircraft four shifts will be shifted out. The quantitative analysis is carried out by examples. The general rule that the headwind decreases the slippage distance and the position where the four-lane turnaround position is shifted backward to increase the height required for the four-turn turnout is given. This provides an accurate and accurate guideline for successful landing and flight safety The theoretical basis.