From the given data, compare total resistance ( ) and effective horse power (EHP) of full-scale ship using Froude method, ITTC 1957 for 2D method and Hughes, ITTC 1978 for 3D method. The temperature of sea water is 15°C<중 략>as we see this graph that (1+k) figure is 1.2579 as in the previous method the first given speed of 0.8m/s is added and calculated as follows. Apply Equation (6)and(5) , and Use given data in Table1, Table2<중 략>⓸. ITTC 1978 for 3D methodnoticed the validity of 3D methodITTC 1978 for 3D method is come from this idea that method ITTC propulsion committee reported that Prohaska’s method is very effective to improve the model-ship correlation