本文介绍了确定飞机失速和临近失速的飞行试验三种方法:(1)FAR 法;(2)水平直线减速法;(3)等爬升率(或等下降率)法。这次确定运七最小飞行速度的飞行试验中采用了上述三种方法,并获得了满意的结果,所测的数据基本上达到了设计要求。 This paper presents three methods of flight testing to determine the aircraft stall and near stall stalls: (1) FAR; (2) horizontal linear deceleration; (3) rate of climb (or rate of descent). The three methods above were used in the flight test to determine the minimum flying speed of Yun-7, and satisfactory results were obtained. The measured data basically met the design requirements.