Yaw axis - Vertical axis, passes through the airplane from top to bottom - left and right control is by rudder.

偏航轴—又称垂直轴。由机身上方通向下方。飞机绕此轴转动即造成机首之左右运动，此一运动由方向舵控制。

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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。

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The assembly and installation of the vertical and horizontal stabilizers, cabin door, rudder and elevator assemblies are being concluded.

水平和垂直安定面、驾驶舱门、方向舵以及升降舵组件目前正在组装和安装。

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One reason for the tall, vertical tail on an airliner is to allow the pilot to compensate with the rudder for the yaw created when a wing-mounted engine fails.

ECONOMIST: The aircraft of the future