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Class 4 (4th Engineer) SC&S 📅 Apr 2024

Exam Question

(a) Explain what is meant by 'assigned summer freeboard' (6)

(b) A box-shaped vessel 60m long, 10m beam, and 6m deep, is floating in salt water at drafts 4m Forward and 4.4 m. Aft. Find how far forward of amidships a weight of 30 tonnes must be loaded if the draft aft is to remain at 4.4m. (10)

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Reference Answer

### (a) Assigned Summer Freeboard (6 Marks)
'Assigned Summer Freeboard' is a fundamental term in ship stability and statutory compliance, defined under the International Convention on Load Lines (ICLL), 1966. A comprehensive explanation comprises the following points:
1. **Freeboard**: This is the vertical distance measured from the waterline up to the upper surface of the freeboard deck at the ship's side (amidships). It represents the height of the deck above the water, which is a critical factor for the ship's safety.
2. **Freeboard Deck**: This is normally the uppermost complete deck exposed to weather and sea, which has permanent means of closing all openings in the weather part thereof. It is the primary watertight envelope of the hull and the reference point for all freeboard calculations.

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