In the mid deck design construction the height of middle deck shall be located at least B/6 or 6m which is less from the bottom, but not more than 0.6D, where āDā is the moulded depth amidships.
The wing tank partition shall extend up to the bottom shell.
Oil tankers < 5000dwt shall be fitted with double bottom tanks of height = B/15 subject to a minimum of 0.76m.
In the turn of the bilge area, the tank top shall extend parallel to the line of mid-ship flat bottom to meet the ship side.
Cargo tanks on these ships must not have a capacity of more than 700m3 or else wing tanks will have to be provided having a width of;