US Patent 10486772 Watercraft lifting fin

A pontoon for providing buoyant force to a floating craft comprises a barrel having front and rear ends and a fin extending outwardly from an outer surface of the barrel. The fin includes a first portion and a second portion positioned rearwardly of the first portion. The first portion extends at least generally parallel with or coincident with a lateral, horizontally extending centerline of the barrel. In order to enhance stability, improve handling, and/or inhibit motor cavitation, the second portion is inclined downwardly and rearwardly relative to the rear end of the first portion. Also disclosed is a pontoon boat fitted with fins on the pontoons and/or on the transom.