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影响飞机尾旋特性的因素是多方面的,诸如气动特性、惯量特性等对尾旋特性都有很大的影响。本文主要通过模型自由飞试验的一些结果分析了重心位置的变化及操纵面的偏转对尾旋特性的影响。通过对试验结果的综合分析得到的结论是:重心位置的弦向(纵向)变化对飞机尾旋特性的影响是不够显著的,而重心的横向变化对尾旋特性的影响则是十分显著的。方向舵、升降舵等操纵面对尾旋特性的影响也是十分明显的。特别值得指出的是升降舵在尾旋中的影响是与操纵时机有关的,在改出尾旋时若不掌握推杆的时机则可能导致相反的结果。
Factors that affect the tail rotation characteristics of the aircraft are many, such as the aerodynamic characteristics, the inertia characteristics of the tail rotation characteristics have a great impact. In this paper, we mainly analyze the changes of the center of gravity and the influence of the deflection of the control surface on the characteristics of the spin-tail through some results of the model free-flight test. Through the comprehensive analysis of the test results, it is concluded that the chordwise (longitudinal) variation of the center of gravity has no significant effect on the wake characteristics of the aircraft, while the lateral variation of the center of gravity has significant effects on the wake characteristics. Rudder, elevator and other control surfaces on the spin characteristics of the impact is also very obvious. In particular, it is worth noting that the effect of the elevator in the wake is related to the timing of the maneuver. If the timing of the maneuver is not grasped when the mast is changed, the opposite result may result.