The rudder is used to change the direction of the ship's movement by deflecting the water flow around the hull.

The rudder is used to change the ship's course, while the propeller is used to propel the ship forward. The rudder is located at the back of the ship, while the propeller is located at the front of the ship. The rudder is smaller than the propeller.

Increasing the rudder angle increases the amount of force that is applied to the water, which causes the ship to turn more quickly.

Decreasing the rudder angle decreases the amount of force that is applied to the water, which causes the ship to turn less quickly.

Increasing the ship's speed increases the amount of water that is flowing past the rudder, which reduces the amount of force that is applied to the water. This causes the ship to turn less quickly.

Decreasing the ship's speed decreases the amount of water that is flowing past the rudder, which increases the amount of force that is applied to the water. This causes the ship to turn more quickly.

Increasing the ship's draft increases the amount of water that is displaced by the ship, which reduces the amount of force that is applied to the water. This causes the ship to turn less quickly.

Decreasing the ship's draft decreases the amount of water that is displaced by the ship, which increases the amount of force that is applied to the water. This causes the ship to turn more quickly.

Increasing the ship's trim increases the amount of water that is flowing past the rudder, which increases the amount of force that is applied to the water. This causes the ship to turn more quickly.

Decreasing the ship's trim decreases the amount of water that is flowing past the rudder, which reduces the amount of force that is applied to the water. This causes the ship to turn less quickly.

Increasing the ship's heel increases the amount of water that is flowing past the rudder, which increases the amount of force that is applied to the water. This causes the ship to turn more quickly.

Decreasing the ship's heel decreases the amount of water that is flowing past the rudder, which reduces the amount of force that is applied to the water. This causes the ship to turn less quickly.

Increasing the ship's speed through the water increases the amount of water that is flowing past the rudder, which reduces the amount of force that is applied to the water. This causes the ship to turn less quickly.

Decreasing the ship's speed through the water decreases the amount of water that is flowing past the rudder, which increases the amount of force that is applied to the water. This causes the ship to turn more quickly.

Increasing the ship's propeller thrust increases the amount of force that is applied to the water, which causes the ship to turn more quickly.