Saucering
For the purpose of reducing the heeling moment a saucer may be used in place of a longitudinal division in way of a hatch opening only in a Filled, Trimmed, Compartment. The depth of the Saucer , measured from the bottom of the Saucer to the deck line, shall be as follows:
1. Ship with moulded breadth of up to 9.1 m, Saucer will not be less than 1.2 m.
2. Ship with moulded breadth of 18.3 m or more, Saucer will not be less than 1.8 m.
3. Moulded breadth between 9.1 m and 18.3 m , the minimum depth of saucer shall be calculated by Interpolation.
The top of the Saucer shall be formed by the underdeck structure in way of the hatchway, i.e. hatch side girder or coaming and hatch end beams. The Saucer and hatchway above shall be completely filled with bagged grain or other suitable cargo laid down on a separation cloth or its equivalent and stowed tightly against adjacent structure.
Ref: Seaman Guide Website
