Ships are divided into types ‘A’ and ‘B’.
Type ‘A’ ships are those which are designed to carry only liquid cargoes in bulk, and in which the cargo tanks have only small access openings closed by watertight gasketed covers of steel or equivalent material.
These vessels benefit from the minimum assignable freeboard. All ships which do not come within the provisions regarding Type ‘A’ ships are considered as Type ‘B’ ships.
As a considerable variety of ships will come within the Type ‘B’ category, a reduction or increase from the basic table Type ‘B’ freeboard is made in the following cases:
Container ahip is having which type freeboard
what does “Has a low permeability of loaded cargo compartments.” mean?
Means when the ship is loaded there isn’t enough enough or slack volume between the cargo. Liquids carrying ships have low permeability.
Gas tanker also comes in type A ship??
Tankers carrying Gas in liquid form along with high integrity of exposed deck and only a small entry into cargo space makes it Type A.