成都-拉萨高原航线单发飘降程序的优化分析

Optimization analysis of single engine drift down procedure for plateau route between Chengdu and Lhasa

首先就高原运行总则进行介绍分析,提出了高原运行的基本方案和运行控制总纲,接着对成都双流和拉萨贡嘎机场的情况以及特殊地形特性进行介绍和分析,之后分析了成都-拉萨高原航线的运行控制的特殊性。其中详细着重对航路相关问题以及飘降程序进行了综合分析,重点以B757-200机型执行成都—拉萨航线为例,综合考虑了实际运行中的各种限制因素,着重对高原航线航路中发动机失效后飘降问题进行了详细分析,重点研究飞机的单发飘降性能和程序,对其通过性能分析提出优化的方法和程序,以进一步提高飞行安全性。

In this paper, the general rules of plateau operation are introduced and basic plateau operation principles are proposed. Then, a general introduction of Chengdu Shuangliu International Airport and Lhasa Gongga Airport is given and special geographical facts are analyzed. Special properties of operation control over plateau route between Chengdu and Lhasa are analyzed, especially route related factors and drift down procedure. This paper, taking the B757 - 200 flying on Chengdu - Lhasa route as an example, discusses all limiting factors and analyzes the drift down after engine failure en route. The study mainly focuses on air-crafts＂ single engine drift down procedure and performance. The purpose is to put forward an optimized pro-cedure to enhance aircraft operation safety.