kormányrúd

A kormányrúd, often translated as rudder, is a primary control surface used to steer a vessel or aircraft. On a boat or ship, it is typically a flat, movable piece located at the stern, submerged in the water. It works by deflecting the flow of water, creating a sideways force that turns the vessel. The rudder is usually operated by a tiller or a steering wheel connected through a mechanical linkage.

In aviation, the rudder is a movable control surface attached to the vertical stabilizer (tail fin) of an aircraft. It is used to control yaw, which is the rotation of the aircraft about its vertical axis. By deflecting the rudder, the pilot can change the direction of the aircraft's nose. This is particularly important for coordinated turns, where it works in conjunction with the ailerons to prevent adverse yaw.

The design and size of a rudder vary greatly depending on the size and type of the vessel or aircraft. Larger ships often have very substantial rudders, while small boats may have much simpler ones. Similarly, aircraft rudders are designed to be effective within the range of speeds and altitudes the aircraft operates. The effectiveness of a rudder is influenced by factors such as its surface area, the speed of the water or air flowing over it, and the angle of deflection.