Boat type of deep V skimming boat

Abstract

The invention relates to a boat type of a deep V skimming boat, which comprises a boat body. The transverse directions of a boat bottom and the boat body are V-shaped. The boat type of the deep V skimming boat is characterized in that an oblique ascending angle beta B of left and right sides of the waist of the boat bottom is 20 to 25 degrees, a transverse oblique ascending angle beta A of the left and right sides of the stern of the boat bottom is 10 to 15 degrees, and the oblique ascending angles of the left and right sides from the waist of the boat bottom to the stern of the boat bottom are in smooth transition and are reduced gradually. Built-in horizontal bilge plates are arranged at the outside break angles of the left and right sides of the boat bottom. The boat type of the deep V skimming boat has the following advantages that: 1, on the premise of volume Fourier coefficient, not only the sailing resistance is reduced, the sailing speed is improved or the host power is reduced, but also the seakeeping property is obviously improved; 2, the longitudinal sailing inclination angle during skimming can be reduced, and the problems of over-large resistance crest, driving sight improvement and the like are solved; and 3, when the conventional propellers are adopted for propelling, the axis included angle is reduced, the problem of larger propeller thrust loss is solved, and the propelling efficiency of the propeller is improved.

Description

technical field [0001] The invention relates to a deep V planing boat type, which can not only make the volume Fourier When the seakeeping and rapidity are comprehensive and excellent, the angle of the propulsion shaft system arranged at the bottom of the boat can also be reduced, and the propulsion efficiency of the propeller can be improved. It belongs to the technical field of boat-shaped body structures. Background technique [0002] When the planing boat sails at high speed, most of the planing surface at the bottom of the boat is supported by hydrodynamic force, and the wave-making resistance of the planing boat is greatly reduced due to the reduction of displacement volume. When the hull is lifted and the water surface is affected by waves, the seakeeping performance is poor and the navigation stall is large. In order to improve seakeeping, the sliding surface of the boat bottom is usually made into a V shape with a large transverse rise angle β, which is called a ...

AI Technical Summary

Problems solved by technology

Although this type of ship has strong wind resistance and low stall speed in waves, it also has the following disadvantages: 1. The resistance is large when sailing in still water, which increases the power of the main engine; Slow; 3. The bottom of the boat at the stern is low, so it is not suitable to install propellers, etc.

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