To study the impact of plateau environment on helicopter test flight,as well as the test flight subjects and methods that helicopters should complete in order to obtain airworthiness approval to operate envelope.By analyzing the risk points of altitude test flight,taking the twin-engine me-dium civil helicopter AC352 as an example according to the requirements of airworthiness regula-tions,the test flight subjects,test flight methods and data processing and analysis methods were ana-lyzed and determined.The helicopter altitude test included engine ground power check,hover per-formance,speed envelope of limit altitude,Class A take-off and landing performance and near-ground maneuvering characteristics.The flight test results showed that the test flight method pro-posed in this paper was reasonable and feasible,and the test flight results met the requirements of airworthiness regulations.
helicopterhigh altituderisk of test flighttest flight methodsairworthiness
万方数据
维普
