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Q8. A ship 145 m long and 23 m beam displaces 19690 tonne when floating at a draught of 8 m in sea water of density 1025 kg/m³.

The following data are given for the service speed of 16 knots:

Effective power (naked) = 3450 kW

Appendage and weather allowance = 20%

Quasi-propulsive coefficient = 0.71

Thrust deduction fraction = 0.21

Transmission losses = 3%

Specific fuel consumption = 0.205 kg/kW hr

The Taylor wake fraction is obtained from: wt = 0.5 Cb - 0.05

(a) Calculate EACH of the following at the service speed:

(i) The delivered power;

(ii) The thrust power;

(iii) The fuel consumption per day.

(b) Calculate the maximum speed at which the ship must travel to complete a voyage of 3000 nautical miles, with only 200 tonne of fuel on board.