(a) Sketch the arrangement of rudder stock, bearings, glands and method of suspension of a pintless rudder, labeling the components parts. (8)
(b) State how the bearing wear down is measured and what prevents the rudder from jumping? (8)
Reference Answer
### (a) Arrangement of a Pintless Rudder A pintless rudder, often of the semi-balanced or balanced type, is supported by bearings within the ship's structure rather than by pintles on a rudder post. The entire weight of the rudder and stock is borne by a carrier bearing located within the hull. The arrangement, as would be shown in a sketch, consists of the following key components: 1. **Rudder Blade & Horn**: The rudder blade is the control surface. On a semi-balanced pintless rudder, it is connected to a substantial horn which extends upwards and is integrally cast or fabricated with the blade. This horn provides the lower bearing housing.
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