Freeing port area: Changes for trunks and side coamings.

If a vessel has a trunk and does not meet the requirements of § 45.61 or has continuous or substantially continuous hatchway side coamings between detached superstructures, the minimum area of the freeing port openings must be obtained from the following table: Breadth of hatchway or trunk in relation to the breadth of ship Area of freeing ports in relation to the total area of the bulwarks (percent) 40 percent or less 20 75 percent or more 10 The area of freeing ports at intermediate breadths must be obtained by linear interpolation.