民航飞机起飞决断速度的一种计算方法

起飞决断速度是民航飞机起飞过程中一个至关重要的参考速度．其准确与否直接关系到飞机的起飞安全。传统的查表方法确定起飞决断速度有时不够准确，所以提出了一种迭代求解方法．并通过B757—200大型运输机的基本参数计算了其起飞决断速度，将计算结果与查表所得的结果进行了分析比较，证明了该算法是切实有效的．既满足适航要求，又利于工程计算。

A Calculated Method of Takeoff Decision Speed of Civil Aircraft

Takeoff decision speed is very important reference speed in the taking-off course of civil aircraft. Taking-off safety depends on accuracy of the takeoff decision speed. The data gained by traditional table method was not sometime accurate. In this paper,a calculated method of the takeoff decision speed was recommended. Using basic data of B757-200,takeoff decision speed was calculated. Comparing the data gained by the iterative method with the data from a table shows that this method is usable. The conclu sions show that this method is suitable in airworthiness requirements and calculation of engineering.