A ship is 150m long, MCT 1cm 400 tonnes m, TPC 15 tonnes. The centre of flotation is 3m aft of amidships. Find the position in which to load a mass of 30 tonnes, with reference to the centre of flotation, so as to main tain a constant draft aft.

A ship is 150m long, MCT 1cm 400 tonnes m, TPC 15 tonnes. The centre of flotation is 3m aft of amidships. Find the position in which to load a mass of 30 tonnes, with reference to the centre of flotation, so as to main tain a constant draft aft.

Reference: Ship Stability for Masters & Mates (6^th edition), Exercise – 16.17

 

Solution:

l = 150/2 – 3 = 72 m

 

d = L*MCTC/l*TPC

=> d = 150*400/72*15

=> d = 55.55 m FOR