Propulsion system, using muscle power, for catamaran - consists of two paddle systems on boat deck, with slide blocks and paddle bars, and is without oars

摘要

The catamaran has two paddle systems (10), with two paddle blades (4), which are fixed, or pivoted in their lower third. The blades move vertically in slide bars (46). Two guide track boards (11) are mounted at right angles to the boat deck (30), and carry the slide bars. A guide bar (12) is mounted to the top of each paddle system, and it carries a guide bar roller bearing (13). The guide bar projects into the guide track, and the guide bar in paddle action automatically determines the path of the paddle blades. Blade movement generates pressures, which act on the paddle blade system via paddle slide blocks (7), bars (2), and blade slide blocks (3). USE/ADVANTAGE - Propulsion system using muscle power can be installed in existing craft, working stroke of paddle blades is larger than that of operator, can be used in narrow waters, moves in direction of vision of user.