POLYMARAN Russian patent published in 1995 - IPC

FIELD: shipbuilding. SUBSTANCE: polymaran is provided with central hydro-ski which has fore and aft superstructures and is located above lateral hydro-skis. Lateral hydro-skis are provided with fore and aft superstructures between which skis are located. Displacement hulls and hydro-skis are of different length in plan and are located at different levels in such position that bottoms of displacement hulls are located below bottoms of hydro-skis. Displacement hulls are provided with centerboards mounted between adjacent edges of lateral hydro- skis and displacement hulls. Opening in fore portion of polymaran is used for technological operations. Polymaran is provided with Bermudian rig which consists of two fore-and- aft sails. Rig is articulated on central hydro-ski at inclination from vertical to stern and is connected with hull by means of standing rigging. EFFECT: enhanced reliability. 2 cl, 3 dwg