At the end of the lesson the student should be able to do the following:
1. Understand the forces acting on a rudder and size the rudder stock and steering gear power requirements.
2. Describe how the formula for the force on a rudder is derived.
3. Calculate the torque acting on the rudder.
4. Calculate the shear stress on the rudder stock by applying the Torsion
Equation
5. Calculate the required minimum diameter of a rudder stock for a given
material.
6. Calculate the work done on the rudder for a given rotation.
7. Understand the effect of rudder action on ship stability.
8. Describe the various form acting on a ship with respect to transverse
stability when the ship is turning.
9. Calculate the ships angle of heel due to form acting on the rudder.
10. Calculate the ship’s angle of heel due to centrifugal and centripetal force
11 Calculate the ship’s final angle of heel due to all heeling forces.
Subject: RUDDERS
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