POLYMARAN Russian patent published in 1996 - IPC

FIELD: shipbuilding. SUBSTANCE: inner floats of polymaran are connected to transverse split beams by means of uprights; in vicinity of these uprights, beams have break and their free end sections are slightly raised relative to center horizontal portion of each of these beams which is connected with central hull. Lateral portions of transverse beams are provided with protective fairings with oval surfaces; end parts of superstructure are provided with fore and aft fairings which extend beyond transverse beams. Fore and aft fairings which extend beyond transverse beams. Fore and aft fairings have taper surfaces convergent to sides and to deck of central hull. All sectional floats exceed those of inner floats. EFFECT: enhanced reliability. 5 cl, 3 dwg