The present invention provides a non-projecting valve bow ship in which the propulsion performance of a ship is improved by reducing the square factor and increasing the length-width ratio of the ship's vertical line, thereby taking into account horsepower savings. The main dimension of a ship is a ship perpendicular to the bow valve at the tip of the bow valve in a ship having a constant drainage amount consisting of a length LPP between the perpendiculars, a ship width, a full load draft, and a square factor. Set P. A rectangular flat plate 2 is fixed to the upper part of the bow valve, and a bow perpendicular F.F. Set P. The expected reduction in horsepower is that if the current length LPP between the normals can be made as long as possible, the effect is greatly reduced to about 3 to 4%. [Selection] Figure 1
展开▼
