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根据在确定 Ｙ７２００ Ａ 飞机失速速度中所遇到的困难， 提出了确定 Ｙ７２００ Ａ 飞机失速速度的新方法。在对该机双发空中慢车功率状态推力为负进行了验证的基础上， 对所有构形的失速速度试飞均以双发空中慢车状态来完成。最后， 给出了失速速度试飞结果。结果表明， 该方法在试飞中是切实可行的， 可用于同类型飞机的试飞验证。
Based on the difficulties encountered in determining the stalling speed of Y7200 A aircraft, a new method to determine the stalling speed of Y7200 A aircraft was proposed. On the basis of verifying that the thrust of the aircraft slow-moving power state is negative, the flight test for all the configurations of stall speed is done in the double-bucking slow-speed state. Finally, the stalling speed test results are given. The results show that this method is feasible in test flight and can be used for flight test of the same type of aircraft.