Based on Noblesse\'s New Slender Ship Theory and Michell Thin Ship Theory,this paper cal-culates the wave-making resistance of Wigley form in the Froude number between 0.

In this paper, the concept of added mass and additional apparent area are applied, the method of normal force engineering calculation based on slender body theory of missile body having non-circular shape cross sections (rectangle, square, triangle etc) is presented.

This paper reviews the mathematical problems in the numerical method of the slender body theory and points out a questionable formula used in the other papers.

Based on the slender body theory and combining with the model tests of a Mariner Ship,added masses and viscous derivatives were calculated and compared with that results from captive model test respectively.

A numerical method based on the slender-body theory is applied to calculate the linear hydrodynamic derivatives of KSC ship,a benchmark ship for the international comparative research on ship manoeuvrability,in manoeuvring motion at a finite speed in shallow water.

On the basis of previous work by modifying Noblesse s new slender ship theory, extending which to the application to twin-hull ship, this paper proposes a method for calculation of the wave resistance generated by twin-hull ships.