根据在国外试飞的经历,介绍并分析了单旋翼带尾桨直升机旋翼转速包线拓展试飞有关内容。首先根据该试飞科目要求来源,结合相关适航规范确定试验点;其次介绍了科目的试飞基本方法,并分析了无动力时初始试验点的选择和旋翼转速的控制;最终进行了空中演示试验并对试验结果进行了分析,所得结论为该科目的试飞提供了参考。 According to the experience of flight test in foreign countries, the paper introduces and analyzes the related contents of single-rotor helicopter rotor-rotor speed envelope expansion flight test. First of all, based on the requirements of the flight test subjects and the relevant airworthiness standards, the test points are determined. Secondly, the basic flight test methods of the subjects are introduced. The selection of the initial test points and the rotor speed control without power are analyzed. Finally, The test results were analyzed, the conclusions obtained for the subjects of flight test provides a reference.