The high-aspect-ratio flying wing eliminates vertical tail and conventional rudder, and uses instead a split dragrudder 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。
3
When all's said and done, the most important factor in choosing a rudder for a powerboat is drag.