襟翼舵是指由主舵叶和襟翼组成舵叶的舵。襟翼接于主舵叶的随边并可由单独机构进行独立控制，襟翼转动方向可与主舵叶一致，但角度大于舵叶转角，也有襟翼与主舵叶转动方向相反的。襟翼舵可提高舵效或减小舵杆扭矩。
水动力学表明，襟翼舵的存在大幅度地提高了升力系数值。
Hydrodynamics shows that the flap rudder can increase lift coefficient notably.
设计并制造伺服传动装置，实现了方向舵、襟翼等活动控制构件铰链的机械转动模拟。
Servo-drive instrument was designed and manufactured. It is feasible to simulate the movement of the hinge of movable components such as body flap, rudder, etc.
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