Abstract: Because of the expansion of oceanic transportation volume step by step it is important to outline a ship’ frame having an extensive conveying limit with low resistance. If there should arise an occurrence of moderate moving boats, normally wave softening happens up front of a bow. A significant bit of resistance happens because of the vitality dispersal of, for example, wave softening up instance of Ultra Large Block coefficient Ship (ULBS) recommended by the creators. The key target of this examination work is to explore the connection between bow wave breaking and free surface unsettling influence work that might be utilized as a parameter for numerical forecast of bow wave breaking. In such manner, the analyses and numerical counts have been done for six models of ULBS. From the outcomes, it can be inferred that the wave softening territory up front of bow increments with the expansion of the surface fundamental of the square of free surface unsettling influence work, Froude number and piece coefficient.