SAILING YACHT SIT-OUT DEVICE Russian patent published in 2010 - IPC B63B41/00 

FIELD: transport.

SUBSTANCE: invention relates to ship building. Proposed sit-out device comprises wing jointed to yacht hull via spherical joint with center in midplane. Joint moving part represents spherical boss with axle to accommodate worm reduction gear wheel. Worm reduction gear housing is rigidly jointed with "П"-like rocker that moves in midplane. Rocker ends are fitted on the joint stationary part, perpendicular to yacht hull midplane. Cross section of aforesaid wing represents a segment with its convexity directed downward. Wing generatrix passing through lower point of cross section is connected with the surface of spherical boss along tangent. Wing upper part features shape mating that of yacht hull bottom in midplane.

EFFECT: reduced water drag and sit-out device weight.

7 dwg