What is the working principle of sailing rudder?

Most customers have joined Qingdao Sailing Club and participated in sailing development training of sailing leadership. They have repeatedly said that the journey on board is really unforgettable, but the theoretical training before boarding is also unique, easy to understand and very practical, which is a necessary guarantee for them to successfully complete the sailing development training. In order to thank you for your affirmation, Bian Xiao will gradually present the contents of theoretical training to you. Last time I talked about the prevention of seasickness. This paper expounds the working principle of sailing rudder.

First of all, the rudder is used to control the steering of the ship, usually at the stern. The main structure is shown in the figure. Comprises a rudder (steering wheel/rudder), a transmission mechanism (hydraulic or mechanical structure), a rudder shaft and a rudder blade (rudder plate).

The specific principle is as follows:

As shown in the right view of the sailboat below, the sailing direction of the ship is positive, and the rudder handle turns left to the steering direction, then the rudder plate (rudder blade) will turn right in the sailing direction.

When the ship moves forward, when the rudder blade turns right, it will be impacted by the current because of the included angle between the rudder blade and the driving direction, as shown in Figure F, which can be decomposed into F resistance and F steering opposite to the driving direction. F-turn pulls the stern to the left and drives the bow to the right to complete the steering purpose.

How to apply rudder steering to the development of sailing at sea and how to cooperate with sail control will be explained in detail by the professional coach of Qingdao Sailing Club in the theoretical training before development to ensure the smooth development of high-end sailing at sea.