Regulation 10 - Peak and Machinery Space Bulkheads, Shaft Tunnels, etc.
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.265(VIII) – Regulations on Subdivision and Stability of Passenger Ships as an Equivalent to Part B of Chapter II of the International Convention for the Safety of Life at Sea, 1960 – (Adopted on 20 November 1973) - Annex - Regulations on Subdivision and Stability of Passenger Ships as An Equivalent to Part B of Chapter II of the International Convention for the Safety of Life at Sea, 1960 - Regulation 10 - Peak and Machinery Space Bulkheads, Shaft Tunnels, etc.

Regulation 10 - Peak and Machinery Space Bulkheads, Shaft Tunnels, etc.

  (a)

  • (i) A ship shall have a forepeak or collision bulkhead, which shall be watertight up to the relevant bulkhead deck. This bulkhead shall be fitted not less than 0.05Ls and not more than 9.8 feet (or 3.0 metres) + 0.05Ls abaft the forward terminal of the deepest subdivision loadline.

  • (ii) If a ship has a long forward superstructure and the residual freeboard at the forward terminal of Ls after flooding of the foremost compartment is less than the summer freeboard required amidships according to the International Convention on Load Lines, 1966 the collision bulkhead shall be extended weathertight to the deck next above the relevant bulkhead deck. The extension need not be fitted directly over the bulkhead below, provided it is at least 0.05Ls abaft the forward terminal of the deepest subdivision loadline and the part of the relevant bulkhead deck which forms the step is made effectively weathertight.

  (b) An afterpeak bulkhead and bulkheads dividing the machinery space from the cargo and passenger spaces forward and aft shall also be fitted and made watertight up to the relevant bulkhead deck. The afterpeak bulkhead may, however, be stepped below the relevant bulkhead deck, provided the degree of safety of the ship as regards subdivision is not thereby diminished.

  (c) In all cases stern tubes shall be enclosed in watertight spaces of moderate volume. The stern gland shall be situated in a watertight shaft tunnel or other watertight space separate from the stern tube compartment and of such volume that, if flooded by leakage through the stern gland, the relevant bulkhead deck will not be submerged.

Parent topic: Annex - Regulations on Subdivision and Stability of Passenger Ships as An Equivalent to Part B of Chapter II of the International Convention for the Safety of Life at Sea, 1960
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