本文对船舶操纵性预计中，如何确定作用在倒车舵（侧翼舵）、加速导管、正舵上的主流速度进行了分析。

This paper analysis the problem—how to determine the main stream velocity on the flanking rudder, the accelerating nozzle and the steering rudder in the prediction of maneuverability of a ship.

youdao

由机头朝向操控者的倒飞停悬，将升降舵打降舵使直升机翻滚为机尾朝向操控者的正立停悬姿态，保持静止停悬5秒钟。

From this inverted Nose-In hover, add forward cyclic and flip the helicopter back to an upright Tail-In hover, hold for five (5) seconds.

youdao

由机头朝向操控者的倒飞停悬，将升降舵拉升舵使直升机翻滚为机尾朝向操控者的正立停悬姿态，保持静止停悬5秒钟。

From this inverted Nose-In hover, add backward cyclic and flip the helicopter back to an upright Tail-In hover, hold for five (5) seconds.

youdao