🔍 Key Concepts

• Identify what part actually allows the rudder to ROTATE, not just support it structurally. • Know the difference between a rudder stock and fittings like gudgeons and pintles used on transom‑hung rudders. • Look carefully at label A in the illustration – that shows the axis about which the rudder turns.

💭 Think About

• Which component in the choices is a SHAFT that passes up into the ship to connect to the steering gear? • In the illustration, is the rudder hanging off the back of a transom with external hinges, or is it supported and turning on an internal vertical shaft? • Of the options, which one is specifically designed to transmit turning motion from the steering gear to the rudder blade?

✅ Before You Answer

• Verify which item in the drawing is marked as the center of rotation (pivot point). • Check which of the listed parts normally carries the turning moment from the steering engine/tiller into the rudder. • Make sure you are not confusing supporting structure (like a stern post or brackets) with the actual rotating shaft of the rudder.