The rudder may also be curved or warped in similar manner by lever action.

To ensure rigidity the rudder must be stayed with guy wires.

Gliders as a rule have only one rudder, and this is in the rear.

The ship's rudder got loose, and was secured with difficulty.

I used the paddle as a rudder, and to push floating timber away.

A sudden shift of the rudder shook the Vulcan from peak to keelson.

In the case of an ornamental boat the rudder can be fixed as shown in Fig. 115.

If the rudder is to be kept in a certain adjustment a quadrant is necessary.

However, this is just the condition of sailing when a boat can dispense with a rudder.

The rudder is hooked to this by means of two hooks called pintles.