Page 135 - statbility for masters and mates

List 123
port side of No. 2 Shelter Deck (KG 11 m and centre of gravity 5 m from
the centre line). Find the ®nal list.
11 A ship of 6500 tonnes displacement is ¯oating upright and has
GM 0.15 m. A weight of 50 tonnes, already on board, is moved 1.5 m
vertically downwards and 5 m transversely to starboard. Find the list.
12 A ship of 5600 tonnes displacement is ¯oating upright. A weight of 30 tonnes is lifted from the port side of No. 2 tween deck to the starboard side of No. 2 shelter deck (10 m. horizontally). Find the weight of water to be transferred in No. 3 double-bottom tank from starboard to port to keep the ship upright. The distance between the centres of gravity of the tanks is
6m.
13 A ship is just about to lift a weight from a jetty and place it on board.
Using the data given below, calculate the angle of heel after the weight has just been lifted from this jetty. Weight to be lifted is 140 t with an outreach of 9.14 m. Displacement of ship prior to the lift is 10 060 tonnes. Prior to lift-off, the KB is 3.4 m. KG is 3.66 m, TPCSW is 20, INA is 22 788 m4, draft is 6.7 m in salt water. Height to derrick head is 18.29 m above the keel.