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Q15. The following results in Table Q5 were obtained from resistance tests on a ship model 6 m in length having a wetted surface area of 7 m² in fresh water of 1000 kg/m³ at a Temperature of 12°C.

Ship correlation factor 1.18

Temperature correction ±0.43% per °C

Calculate the effective power of a similar ship 140 in long travelling at a speed of 18 knots in sea water of density 1025 kg/rn³ at a temperature of l5 °C

Note: The frictional coefficient for the model in water of density 1000 kg/m³ at 15°C is 1.655

The fractional coefficient for the ship in water of density 1025 kg/rn³ at 15 °C is 1.415

Speed in m/c with index (n) for ship and model 1.825