Wind driven catamaran with submerged propeller - is rotated by vertical shaft supporting variable orientation paddle wheels

摘要

The wind driven vessel has a submerged propeller driven through a bevel gear by a vertical shaft and positioned by a tiller. The shaft is driven through a gear wheel which is attached to the extension above the deck. The top end of the shaft is held in bearings and guided by shrouds. The wind vanes are made from aluminium and supported by the arms with the upper and lower arms adjustable so that the angle of the blade can be changed.