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Merchant Shipping (Safety and Load Line Conventions) Act 1932

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This is the original version (as it was originally enacted).

Trunk

A trunk or similar structure which does not extend to the sides of the ship is regarded as efficient provided that—

(a)the trunk is at least as strong as a superstructure;

(b)the hatchways are in the trunk deck, and comply with the requirements of Rules VIII to XVI, and the width of the trunk deck stringer provides a satisfactory gangway and sufficient lateral stiffness;

(c)a permanent working platform fore and aft fitted with guard rails is provided by the trunk deck, or by detached trunks connected to other superstructures by efficient permanent gangways;

(d)ventilators are protected by the trunk, by watertight covers or by equivalent means;

(e)open rails are fitted on the weather portions of the free board deck in way of the trunk for at least half their length;

(f)the machinery casings are protected by the trunk, by a superstructure of standard height, or by a deck house of the same height and of equivalent strength. Where access openings in poop and bridge bulkheads are fitted with Class 1 closing appliances, 100 per cent. of the length of an efficient trunk reduced in the ratio of its mean breadth to B is added to the effective length of the superstructures. Where the access openings in these bulkheads are not fitted with Class 1 closing appliances 90 per cent. is added. The standard height of a trunk is the standard height of a bridge. Where the height of the trunk is less than the standard height of a bridge, the addition is reduced in the ratio of the actual to the standard height; where the height of hatchway coamings on the trunk deck is less than the standard height of coamings (see Rule IX), a reduction from the actual height of trunk is to be made which corresponds to the difference between the actual and the standard height of coamings.

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