Yoke (aeronautics)

A yoke, alternatively known as a control wheel or a control column, is a device used for <a href="/facts/Pilot_(aeronautics)/SJaN1UAJ">piloting</a> some <a href="/facts/Fixed-wing_aircraft/0DQQP2rB">fixed-wing aircraft</a>.
The <a href="/facts/Aviator/SJaN1UAJ">pilot</a> uses the yoke to control the <a href="/facts/Aircraft_attitude/XfrDf3hp">attitude</a> of the plane, usually in both pitch and <a href="/facts/Flight_dynamics/YovEIsxu">roll</a>. Rotating the control wheel controls the <a href="/facts/Ailerons/700JRzbo">ailerons</a> and the roll axis. Fore and aft movement of the control column controls the <a href="/facts/Elevator_(aircraft)/LPMxWDXk">elevator</a> and the pitch axis. When the yoke is pulled back, the nose of the aircraft rises. When the yoke is pushed forward, the nose is lowered. When the yoke is turned left, the plane rolls to the left, and when it is turned to the right, the plane rolls to the right.
Small to medium-size aircraft, usually limited to propeller-driven, feature a mechanical system whereby the yoke is connected directly to the control surfaces with cables and rods. Human muscle power alone is not enough for larger and more powerful aircraft, so hydraulic systems are used, in which yoke movements control hydraulic valves and actuators. In more modern aircraft, inputs may first be sent to a <a href="/facts/Fly-by-wire/nhyXB248">fly-by-wire</a> system, which then sends a corresponding signal to <a href="/facts/Actuators/mF9qVJJR">actuators</a> attached to the aileron booster systems and control surfaces. Yokes may feature a <a href="/facts/Stick_shaker/1QUP70DT">stick shaker</a>, which is designed to help indicate the onset of <a href="/facts/Stall_(flight)/nsB7YRc5">stall</a>, or even a <a href="/facts/Stick_pusher/TKcxHkyy">stick pusher</a>, which physically pushes the yoke to prevent a stall.

Yoke (aeronautics) open-in-new

Yoke (aeronautics)