Class 4 (4th Engineer) SC&S 📅 Mar 2023

Exam Question

Sketch a semi-balanced rudder of your choice showing:

(a) A detail of the hinges or pintles about which rudder turns (4)

(b) Details of the rudder carrier ring, which supports the weight of the rudderstock and rudder (4)

(d) What acts as 'rudder stops'? What is their purpose and at what angle from mid position would you expect the rudder stop to be set. (4)

Reference Answer

### (a) Hinges or Pintles of a Semi-Balanced Rudder
The hinges of a rudder are comprised of pintles and gudgeons. This arrangement allows the rudder to pivot smoothly while being securely attached to the stern frame or rudder horn.
* **Construction:**
* **Pintles:** These are tapered, heavy-duty pins, typically forged from high-tensile steel, which are integral to or fitted onto the rudder blade. The taper facilitates fitting and removal.

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