Section 2 Plate Keels

201. Breadth and thickness

1. The breadth of plate keel over whole length of the barge is not to be less than obtained from the following formula:

à ≥ 90 m : ᾎ Ņ ĪÃ Ñ ÌLLL (mm), à P 90 m : ᾎ Ņ ĨǾJÃ Ñ KKJ (mm)

2. The thickness of plate keel over whole length of thickness obtained from the requirement in 304.

the barge is not to be less than the bottom shell increased by 1.5 mm. This thickness, however, is

not to be less than that of the adjacent bottom shell plating.

3. As for pontoon barges, the thickness of plate keel may be equal to that of bottom shell plating, notwithstanding the Par 2.