飞机航线飞行轨迹稳定性和机动能力分析

Analysis of the Stability en Route and Maneuverability of an Airplane

对一起迅速下降高度的飞行事件进行了分析和讨论：高空小速度飞行使飞机进入轨迹不稳定区域导致飞行速度越来越小；高空小速度飞行机动能力减弱使飞机进入抖振边界导致失速，飞机迅速下降高度。最后给出了安全飞行的建议。

 A dangerous incident en route is analysized and discussed here in the paper． Flying at low speed in a high altitude caused the airplane to enter an unstable area and to fly more and more slowly． In the meantime high altitude and low speed weakened its maneuverability and so the airplane stalled and was going down rapidly． In conclusion suggestions on safe flight are made in the paper．