Q2. A ship of length 120m and breadth 16 m floats upright at a draught of 6.5 m in sea water of density 1025 kg/m3 and the height of the centre of gravity above the keel (KG) is 4.735 m.
Further hydrostatic data for this condition are as follows:
centre of buoyancy above the keel (KB) = 3.2 m
height of metacentre above the keel (KM) = 6.6 m
waterplane area coefficient (CW) = 0.8
block coefficient (Cb) = 0.7
In the above condition there is an empty rectangular wing tank 12 m long, 4 m wide and 6 m deep, adjacent to the hull and directly above a double bottom tank 1.2 m deep.
Calculate the angle to which the ship will heel when the tank is completely filled with fresh water of density 1000 kg /m3, assuming the ship to be wall sided over the change of draught. (16)
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