FAR 25 附录 C 结冰气象探测数据处理方法

Icing can change the shape of the airplane, decrease the lift, and increase the drag. The maneuverability and stability of the airplane are crippled, which severely threatens the flight safety. The application of Appendix C is restricted by regional and seasonal limitations. In addition, a more complex icing condition has been discovered recently and thus Appendix C needs to be consistently revised. This report can provide instructions for the compilation and improvements of China's icing airworthiness regulations. This study introduces the methods for data postprocessing, the mechanism of the conventional icing meteorological detection sensors, and the creation of the FAR 25 Appendix C. Appendix C provides a detailed explanation of how the plots were derived from the meteorological detection data. Finally, the current challenges and future development trends are presented from three aspects: the establishment of icing databases, improving the measurement accuracy of instruments, and anti-icing of unmanned aerial vehicles, thus providing scientific guidance for the development and future direction of meteorological detection technology.