SAILING CATAMARAN Russian patent published in 1995 - IPC

FIELD: building of sailing vessels. SUBSTANCE: each pontoon hull is provided with retainers one of which is located on deck and other on side; cross connection of upper parts is made in form of ropes rove to free rollers and double-drum winch located on one of hulls which is provided with ballast tank for deepening it; each hull is provided with recess which is open on side of deck and on one of its sides; mast of each pontoon hull is swivel in vertical plane and it oriented perpendicularly to its longitudinal axis; mast is located in respective recess and is connected with respective pontoon hull by means of horizontal axle for engagement with above-mentioned retainers. The bridge is made of hollow cross-members which are brought in communication with interior of pontoon hulls; masts are provided with yards. EFFECT: enhanced reliability. 3 cl, 5 dwg