安排副翼、降舵及主旋翼螺距的打舵时机，使得直升机能保持固定的高度、进方向及速度。
Time the input of the cyclic& collective commands such that the helicopter maintains constant altitude, direction& speed.
针对带有舵翼的水下航行器尾部结构模型，研究舵翼对水下航行器尾部的振动及声辐射的影响。
The vibration and sound radiation behaviors of the stern of submarine with rudder and vane are studied.
本文用正交试验法研究了舵展弦比、前缘后掠角、梢根比和翼剖面对舵性能的影响；
Described in this paper are the effects of the aspect ratio, the swept-back, the taper ratio and the profile of the ship rudder on its hydrodynamic performance by a test method of orthogonality.
大展弦比飞翼布局飞机取消了垂尾和常规方向舵，通常采用大偏角的开裂式方向舵作为偏航操纵面。
The high-aspect-ratio flying wing eliminates vertical tail and conventional rudder, and uses instead a split drag rudder with large deflection as its directional control surface.
大展弦比飞翼布局飞机取消了垂尾和常规方向舵，通常采用大偏角的开裂式方向舵作为偏航操纵面。
The high-aspect-ratio flying wing eliminates vertical tail and conventional rudder, and uses instead a split drag rudder with large deflection as its directional control surface.
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