Section 1 Arrangement of Watertight Bulkheads

101. Collision Bulkheads

FRP ships are to be provided with a collision bulkhead at a position between 0.05 Ã (m ) and 0.13

à (m ) from the fore side of the stem on the load line.

102. Aft Peak Bulkheads

1. All FRP ships are to be provided with aft peak bulkheads at a suitable position.

2. Stern tubes are to be provided in a watertight compartment by means of an aft peak bulkhead or any other suitable arrangements.

103. Bulkheads of Machinery Space

A watertight bulkhead is to be provided at each end of the machinery space.

104 Height of Watertight Bulkheads

The watertight bulkheads required in 101. to 103. are to extend at least to the upper deck except for those specified in the following (1) to (3) :

(1) The watertight bulkheads in way of the sunken poop or the sunken forecastle is to extend to the sunken poop deck or the sunken forecastle deck.

(2) Where a forecastle having opening without closing appliances led to a space below the free- board deck is provided or where a long forecastle not less than 0.25 Ã in length is provided,

the collision bulkhead is to extend up to the superstructure deck. In this case, the extend part may have steps within the limit of distance specified in 101. and may be made weathertight.

(3) Where a deck below the upper deck but above the load line is extended to the stern from the aft peak bulkheads and made watertight, the aft peak bulkhead may terminate at the afore-men-

tioned deck. In this case, however, the transverse strength and transverse stiffness of the hull

are to be maintained by providing web frames of partial bulkheads extending up to the upper deck, directly above or in the vicinity of the aft peak bulkhead.

105. Chain Lockers

1. Where chain lockers are provided abaft the collision bulkhead or in the fore peak tank, they are to be made watertight and provided with means of drainage by pump.

2. Chain lockers are to be provided with screen walls at centre line.