Stabilizer trim attachment for power boats

Claim 1

In combination with a power boat having a bottom and a transom connected together at a joint at the stern of the boat; a pair of trim-tabs hinged to the boat adjacent said joint and on opposite sides of the centerline thereof; said trim tabs comprising substantially flat body portions which are hinged at their forward edges to the boat and provide planing surfaces extending rearwardly from the boat bottom, said tabs being spaced on each side of the centerline of the boat to provide a space therebetween, said tabs having stabilizing flanges which project from the planing surfaces of the tabs at both the inner and outer edges of the respective tabs, each tab having an upwardly angled extension at its rear edge, and means for positively raising and lowering the hinged tabs, said means for positively raising and lowering the tabs comprising a double-acting hydraulic ram connected between each of said tabs and the transom of the boat, and means for activating both of said rams simultaneously in the same direction, said activating means comprising a single selector switch movable from a normal off position into contact with either of two contacts, said contacts being connected to a reversible electric motor which drives a reversible hydraulic pump that supplies actuating fluid to said rams.