Q2). A ship of length 150 m and breadth 20 m floats upright at a draught of 7.5 m in sea water of density of 1025 kg/m3 and the height of centre of gravity above the keel (KG) is 5.388 m.
Further hydrostatic data for this condition are as follows:
centre of buoyancy above the keel (KB) = 3.956 m
height of metacentre above the keel (KM) = 7.014 m
water plane area coefficient ( Cw) = 0.82
block coefficient ( Cb) = 0.72
In the above condition there is an empty rectangular wing tank 16 m long, 5 m wide and 5 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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