Div 2Peak and Machinery Space Bulkheads, &c.

Division 2.—Peak and Machinery Space Bulkheads, &c.

Collision bulkhead.

8.—(1.) A ship shall be provided with a collision bulkhead.

(2.) The collision bulkhead shall be watertight up to the bulkhead deck.

(3.) The distance between the collision bulkhead and the ship’s forward perpendicular shall be not less than five per centum of the length of the ship and not more than ten feet plus five per centum of the length of the ship.

(4.) If the ship has a forward superstructure, the collision bulkhead shall be extended to the deck next above the bulkhead deck.

(5.) Where an extension of the collision bulkhead is required by the last preceding sub-regulation—

(a) the extension shall be weathertight; and

(b) if the extension is not fitted directly over the bulkhead below—

(i) the distance between the extension and the ship’s forward perpendicular shall be not less than five per centum of the length of the ship; and

(ii) the part of the bulkhead deck which forms the step shall be made weathertight.

(6.) The plating and stiffeners of the extension required by sub-regulation (4.) of this regulation shall be constructed in accordance with the provisions of the Third Schedule as if the extension formed part of a bulkhead immediately below the bulkhead deck.

Afterpeak and machinery space bulkheads.

9.—(1.) A ship shall be provided with a watertight afterpeak bulkhead and with watertight bulkheads dividing the space appropriated to the main and auxiliary propelling machinery, the boilers, if any, and the permanent coal bunkers, if any, from other spaces.

(2.) Subject to the next succeeding sub-regulation, the bulkheads referred to in the last preceding sub-regulation shall be watertight up to the bulkhead deck.

(3.) The afterpeak bulkhead may be stopped below the bulkhead deck if the safety of the ship is not thereby impaired.

Stern gland and stern tube compartments.

10.—(1.) The stern gland of a ship shall be situated in a watertight shaft tunnel or other watertight space separate from the stern tube compartment and of such a volume that, if the tunnel or space is flooded, the margin line will not be submerged.

(2.) The stern tube of a ship shall be enclosed in a watertight compartment the volume of which shall be the smallest compatible with the proper design of the ship.