通过加快推进器的旋转来增加其推力，同时改变叶片的角度来改变推力的方向。
Speeding up the propeller's rotation increases its thrust, while shifting the blades' angles changes the direction of the thrust.
休使用高密度旋转机翼产生的需要起飞电梯，并使用一个标准的推手推力生产装置推到前飞的飞机！
Use a Hugh high density whirling wing to generated the needed take off lift, and use a standard pusher thrust producing device to propel the aircraft into forward flight!
圆柱滚子和推力滚针组合轴承yrt系列具有旋转精度高、可承受较大的径向载荷和双向轴向载荷以及大的倾覆力矩等特点。
YRT series cylindrical roller and thrust needle roller combined bearings, with high rotation accuracy, can support heavier radial loads, double direction axial load and inclined torque, etc.
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