直升机水上迫降适航验证研究

Research on Airworthiness Verification of Helicopter Ditching on Water

在某型直升机适航取证的过程中,需要进行直升机水上迫降适航验证。直升机水上迫降是《中国民用航空规章》第29部的重要条款,通过对某型直升机水上迫降适航验证过程研究,采用在直升机三维模型中建立吃水线,并分析不同重量情况下的吃水线变化情况,从而解释直升机着水后的稳定性,随后利用公式计算得出水上漂浮时间,为今后直升机水上迫降适航验证提供了解决思路,对于直升机水上迫降适航验证具有一定意义。

In the process of helicopter airworthiness certification,it is necessary to verify the airworthiness of helicopter forced landing on water.Helicopter ditching on water is an important clause in Part 29 of China`s civil aviation regulations.Through the research on the airworthiness verification process of a type of helicopter ditching on water,the waterline is established in the three-dimensional model of the helicopter,and the variation of the waterline under different weights is analyzed to explain the stability of the helicopter after landing,and then the floating time on the water is calculated by the formula.It prouides reference for the airworthiness verification of helicopter ditching on water.