HIGH-SPEED BOAT (GLIDING VESSEL) HULL WITH IMPROVED RUNNING CHARACTERISTICS Russian patent published in 2024 - IPC B63B1/18 B63B1/00 

FIELD: shipbuilding.

SUBSTANCE: invention relates to ship building, particularly, to hull of high-speed boats. High-speed boat hull has hard-chine lines with angles of external deadness of at least 14°. In the aft part, the bottom is made with a break at the keel line, which forms a flat section of the bottom adjacent to the transom, perpendicular to the centre plane (CP) and which is an equilateral triangle with a base on the transom, which is symmetrical relative to the CP, equal to 0.05 to 0.15 of the width of the body along the bow on the transom, and apex on the keel line located at distance of 3−4 theoretical spacings from the transom. Controlled interceptors extending across the incident flow are installed along the aft edge of the bottom from the keel to the bows with possibility to change its extension below surface of bottom from 0 to maximum value equal to 0.01 to 0.03 of width of body along bow on transom, in order to change angle of running trim.

EFFECT: maximum reduction of resistance to movement and increase of hydrodynamic quality at optimal for each speed of movement of interceptor extension.

2 cl, 3 dwg