+A rudder is a primary [control surface](/wiki/control_surface) used to steer a [vessel](/wiki/vessel) or aircraft. Positioned at the stern, it alters the flow of water or air, changing the direction of travel. This simple pivot allows for precise navigation.
+## See also
+- [Ship](/wiki/ship)
+- [Steering](/wiki/steering)
+- [Aerodynamics](/wiki/aerodynamics)
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