This paper describes a method for obtaining the optimum ship form of low resistance and high propulsive efficiency including experimental validation. The authors presented two papers before regarding a method for obtaining the optimum ship form of low resistance with consideration of separation prediction. In the present paper a method for considering propulsive efficiency starting from the lowest resistance form is described. The method is applied to the Series 60 model of 0.60 Cb. Resistance and self-propulsive efficiencies of two optimum models produced with different constraints are measured at the circulating water tank. The results of experiments show effectiveness of the present method for obtaining ship form of low resistance and high propulsive efficiency.
