Airport obstacle mainly affects the obstacle limiting takeoff weight and takeoff safety, at the same time the airport obstacle assessment is the main daily work for performance engineer of airlines. This paper aims at all obstacles of the airport flight path,in accordance with the rules of CCAR121,this article establishes the information database of civil airport obstacle firstly,then using the programming language obstacle assessment module was designed,this paper recognized whether nearby obstacle is important ob-stacle or not,an important obstacle information is automatically converted to the input interface file corre-sponding to aircraft performance software,it is useful for the subsequent take-off obstacle calculation,and it can quickly improve the computational efficiency of performance engineer.%机场障碍物主要影响起飞越障限制重量和起飞安全,同时机场障碍物评估是航空公司性能工程师日常主要计算工作。针对机场起飞航径区内的所有障碍物,按照CCAR121部的规定,建立民用机场障碍物信息数据库,利用编程语言设计障碍物评估软件,识别附近的障碍物是否为重要障碍物,同时将重要障碍物信息自动转换为飞机性能软件对应的输入接口文件,便于后续的起飞越障计算,可以快速提高性能工程师的计算效率。
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