A boat pontoon has a V-shaped keel region and a frame on deck connected to points along the keel region by rods of adjustable effective length. Any limited part of the keel region can be deflected in one direction by increasing the length of the rod connecting the frame to that part of the keel region and in the opposite direction by reducing the length of that rod.
The invention discloses a pontoon boat adapted to be propelled by an outboard motor, the boat having a deck and pair of longitudinally extending parallel spaced apart pontoons depending from the deck and a means for mounting the outboard motor to the boat. The mounting means depends from the deck between the pontoons and comprises a pair of elongated substantially vertical spaced apart side walls having front and aft ends, the side walls becoming deeper and more spaced apart as they extend from their front ends to their aft ends, a substantially vertical and laterally extending transom positioned between the side walls at the aft ends thereof and a bottom portion, the bottom portion depending from the side walls and having a V-configuration in cross section and extending rearwardly of the side walls and the transom.
A preferred planing foil apparatus (10) for use with a pontoon boat (12) includes mounting structure (32) for connecting a planing foil (30) to the boat (12) with the foil (30) positioned between and spaced from the pontoons (12, 14) generally amidships and straddling the transverse centerline of the boat (12). The foil (30) is also positioned between the waterline (62) and the lower surfaces (64) of the pontoons (12, 14) when the boat (12) is at rest so that foil (30) rises toward a planing position on the surface of the water as the boat (12) is propelled therealong in order to lift the boat (12) and reduce drag.
A pontoon-type boat comprising a deck having opposite sides, and a modified tunnel hull supporting the deck and including a first outer sponson located adjacent one of the sides of the deck, a second outer sponson located adjacent the other of the sides of the deck, and a center sponson which is located and spaced between the outer sponsons, which extends substantially the entire length of the boat, and which includes a rearward portion having a maximum depth and a maximum width, and a forward portion having a maximum width greater than the maximum width of the rearward portion and having a maximum depth greater than the maximum depth of the rearward portion, the forward and rearward portions defining therebetween a step.
A pontoon-type boat comprising a deck having opposite sides, and a modified tunnel hull supporting the deck and including a first outer sponson located adjacent one of the sides of the deck, a second outer sponson located adjacent the other of the sides of the deck, and a center sponson which is located and spaced between the outer sponsons, which extends substantially the entire length of the boat, and which includes a rearward portion having a maximum depth and a maximum width, and a forward portion having a maximum width greater than the maximum width of the rearward portion and having a maximum depth greater than the maximum depth of the rearward portion, the forward and rearward portions defining therebetween a step.
A float structure having a mainframe and pontoons is described. The mainframe includes floor support beams transversely attached to pontoon connector beams. The pontoon connector beams are operatively connected to the pontoons such that there are no weak points in the mainframe. A motor mount is removably mounted to the connector beams and is adjustable to accommodate various lengths of motor shafts.
