STABILISED HULL OF A SINGLE-HULL KEEL SAILING/MOTOR-SAILING VESSEL WITH A SURFING SURFACE Russian patent published in 2023 - IPC B63B1/04 B63B1/16 B63B1/32 B63H9/04 B63B39/00 

FIELD: shipbuilding.

SUBSTANCE: invention relates to shipbuilding and can be used in building and modernisation of marine high-speed single-hull keel sailing/motor-sailing vessels with large sailing power availability utilising a narrow displacement wave-penetrating hull and a surfing surface. For the stable controlled movement of the vessel with a surfing surface in the wave penetration mode, i.e., in the displacement mode of low wave/hydrodynamic resistance, both in the presence and in the absence of sailing heel, and ensuring the damping of the broken-wave energy and the possibility of returning to an even keel from the “sail-on-water" position, the hull of the vessel, in the lower part thereof, has a vertically oriented narrow low wave/hydrodynamic resistance section (4), longitudinally symmetrical relative to the centreline of the vessel and comparable to the length thereof, with a displacement segment (5) including a keel (8) with a bulb, with a segment displacement corresponding to the full laden weight of the vessel; also includes two narrow sponsons (6 and 7) with a streamlined low wave/hydrodynamic resistance shape, oriented longitudinally symmetrical relative to the centreline of the vessel, located above the waterline at the maximum width of the hull, forming two tunnel cavities above the waterline for dampening the energy of the wave broken by the stem and sponsons, wherein the lower hull surface forming the upper arch of the tunnel cavities is made in the form of unladen surfing surfaces (10), and wherein the joint displacement operation of the lee sponson and the hydrodynamic lifting force of the lee surfing surface allows for the effective counteraction to the sailing heel in medium and strong winds.

EFFECT: creation of a sailing/motor-sailing vessel capable of effective counteraction to sailing heel.

1 cl, 3 dwg