The hull |
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IPC classes for russian patent The hull (RU 2023623):
 
 Surfer with electric drive / 2325301
Surfer with electric drive includes board with a rudder connected to foot steering pedals and motor attached to a propelling screw from one side and to a battery unit from another side. Motor with propelling screw and rudder are located in rear section of the board. The upper part of surfer board is equipped with panel having battery charge indicator with power on/off indicator installed. Surfer is also provided with pneumatic damping knee-boards and throttle lever of thyristor control system. There is a pull handle on the left gripping handle to block movement. Rudder unit is installed on the projected part of rear section. Keel is placed in the bottom part of surfer to ensure stable sailing.
 Motorised sailboard / 2404082
Invention relates to floating crafts for aquatic sports. Motorised sailboard contains board of 200 kg displacement with raised fore end to be able to climb a wave of up to 0.3 m, and fixed petrol two-stroke engine. The engine is located in the centre of gravity of the board and connected with fully enclosed screw-propeller with adjustable pitch which is installed in bottom tunnel in the aft deck. Adjustment of engine speed and screw pitch is executed by means of twist grips of motorcycle type located on beam-rail. Engine and board stop is automatic from the moment when sportsman takes away his (her) hand from the rail. Turns are made by board listing in direction of turning.
 Device to start and return aerodynamic shaped element and aerodynamic shaped element / 2428349
Invention relates to tethered propulsors for ships. Proposed element has top flexible layer extending in crosswise and lengthwise directions, bottom flexible layer adjoining said top layer and jointed therewith by several webs running along chord of shaped element, and inner air-filled space there between. At least one hole is arranged between two front edges of said top and bottom layers to inject air into said inner space. Several draw strips are secured on shapes element and connected to towing cable for connecting shaped element with ship. Several bow strips are connected to layers or webs to decrease or increase magnitude of shaped element by reefing or unreefing. Besides, there is rod element arranged in lengthwise direction to stabilise aerodynamic profile. Rod element is secured on top or bottom layer or on web. One of reefing strips turns from crosswise direction onto lengthwise direction. Proposed device comprises mast with jointer element. Ship propulsor comprises bow mast and towing cable pivoted to ship bow point located ahead of mast.
 Surf-board with flipper-type propulsor / 2529120
Surf-board comprises body and flipper-type propulsor mounted thereat. Flipper-type propulsor is arranged vertically, its one end being secured to the rod extending through the body in its mirror axis to turn thereabout. Plate is secured to rod end, level with the body, to interact with platform turn limiters. Bearing is arranged between said plate and body while keel fin is made at body bottom front in mirror axis.
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(57) Abstract: Usage: in shipbuilding, in the construction of glycerolic vessels. The inventive hull, mainly windsurfer, side skegs are made with outer and inner vertical walls, the bottom is made on the arc of a circle on the entire length, and the maximum value of the displacement is one-third the length from the stern to the bow of the hull. 3 Il. The invention relates to the field of shipbuilding, specifically to the hull structures of glycerolic vessels. Famous hull-windsurfer containing side sidewall along the length of the bottom with the external vertical sides. But a ship with such a case does not reach the maximum speed, as bruskovshchina veil is dropped to the median plane and is not air grease bottoms. The purpose of the invention is the increase of the maximum speed of the vessel-windsurfer. This is achieved by the fact that the sidewall is made with a monotonically increasing from the stern to the bow height and with the inner vertical sides, the bottom is made on the arc of a circle on the entire length, and the maximum value of the displacement is on the same plane; in Fig. 2 - the hull of the vessel, a top view; Fig. 3 - section a-a in Fig. 1. The hull-windsurfer contains the upper part 1 with a bottom 2, made by the arc of a circle the entire length of the sidewall 3 with internal flanges 4 and the aft fin 5. When reaching speeds above five knots bruskovshchina shroud of the hull nose, nasal limited entering parts of the side sections 3, rises under the inclined nose portion of the body and turns into air lubrication, which is not discarded by the inner sides of the 4 sections to the vertical median plane of the ship, and spreads across the bottom 2 of the body, reduces the resistance of the vessel and increases its speed. While the aft fin 5, creating additional lateral resistance, leaves the center of lateral resistance at the rear center of the sail and prevents the upper part 1 of the housing spontaneously presented to the wind. The application allows you to develop a higher speed, since the outer side sections are made vertical, they do not distort the flow of water, and the energy consumption for the movement of the vessel will be minimal, plus they will not drop bishopstone shroud to the median plane of the ship, and the veil will be lubricated and the specified width of the hull, bruskovshchina shroud into the air grease will wash the entire surface of the bottom when any valid roll, which also increases the speed of the ship. The hull of the VESSEL, mostly windsurfer containing side snow along the entire length of the bottom with the external vertical sides, characterized in that the snow is made with a monotonically increasing from the stern to the bow height and inner vertical walls, the bottom is made on the arc of a circle on the entire length, and the maximum value of the displacement is one-third the length from the stern to the bow of the hull.
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