Statutory Documents - MCA Publications - PYC - A Code of Practice for Yachts Carrying 13 to 36 Passengers (The Passenger Yacht Code) - Chapter 4 - Construction, Subdivision and Stability - Part III - Subdivision, Watertight and Weathertight Integrity - 4.18 Construction and Initial Testing of Watertight Decks, Trunks, etc.:
4.18 Construction and Initial Testing of Watertight Decks, Trunks, etc.:
(1) Watertight decks, trunks, tunnels, duct keels and ventilators shall-
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(a) be of the same strength as watertight bulkheads at corresponding levels and the means used for making them watertight, and the arrangements adopted for closing openings in them, shall be to the satisfaction of the Administration;
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(b) watertight ventilators and trunks shall be carried at least up to the bulkhead deck;
(2) where a ventilation trunk passing through a structure penetrates the bulkhead deck, the trunk shall be capable of withstanding the water pressure that may be present within the trunk, after having taken into account the maximum heel angle allowable during intermediate stages of flooding, in accordance with section 4.8.
(3) after completion, a hose or flooding test shall be applied to watertight decks and a hose test to watertight trunks, tunnels and ventilators.
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