CASE FOR GLIDING VESSEL Russian patent published in 2008 - IPC B63B1/18 B63B1/38 B63B1/40 

FIELD: transportation.

SUBSTANCE: case has an extra bulge in the form of a projection, in the direction of its centre plane, relative to the lower lying edge of the case. Part of the fore end, located lower than extra bulge, is pushed forward beyond the stem line of the upper lying part of the fore end, with formation of a ram formed projection, with monotonously shrinking water lines and bends in form of drawn out straight lines or low arched curved lines of isosceles triangles with a downward directed vertex, located on a keel line. The upper edge of this projection is in the form of a smooth extension into the sharp end of surfaces widening to the sharp end projections of extra bilges of both boards. The rib of the extra bilges and butt of the upper edge of this projection are inclined into the sharp end relative to the plane of the hovering waterline of the vessel. The surface of the projections of the extra bilges, smoothly running to the surface of the boards, form, in the region between the stem, the extra rib and the inner rib of the basic bilges, cavities with a cone-shaped surface. The surface has its summit at the point of intersection of the rib of the extra bilge and the internal rib of the basic bilge. The bottom has a hollow triangular form, bounded on the sides by the sharp end and boards widening into the sharp end of the sideboards and spreading into a stern right up to the transom. The summit is on the point of intersection of edges of the skegs, located in the sharp end part, as well as in front of the cylindrical insert, which has the form of a horseshoe and bounded by the sides of the sharp end and lining boards, equidistant in the direction along the vessel, with edges of the skegs. The segment of the keel line within the limits of that insert coincides with tangent to the stern end of its downwards deflected head end.

EFFECT: increased navigability and propulsion qualities of the vessel.

7 cl, 7 dwg