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Q9. At a draught of 1.0 m in sea water of density 1025 kg/M3 the displacement of a ship is 900 tonne and the height of the centre of buoyancy above the keel (KB) is O.6m. Values of tonne per centimetre immersion (TPC) in sea water for a range of draughts are given in Table Q1.

(a) Calculate EACH of the following for a draught of 6. Om in sea water:

(î) the displacement; (ii) the height of the centre of buoyancy above the keel (KB).

(b) At a draught of 6.0 m, the height of the longitudinal metacentre above the keel (KML) is 128m and the second moment of area of the waterplane about a transverse axis through midships is 996 728 m4. The centre of flotation is aft of midships.

Calculate the distance of the centre of flotation (LCF) from midships.