Float (nautical) marine salvage, often deployed uninflated then pressurized to raise a sunken object. In popular usage, the term "pontoon" can refer to any of several of the following objects that make use of nautical floats. A pontoon boat is a flattish boat that relies on nautical floats for buoyancy. Common boat designs are a catamaran with two pontoons, or a trimaran with three. In many parts of the world, pontoon boats are used as small vehicle ferries to cross rivers and lakes. In Australia and New Zealand, the term "pontoon" often refers to an anchored raft-like platform used for diving from.
Pontoon effect each pontoon can support the vessel's entire weight (plus any lateral forces that arise like wind), the center of gravity cannot move transversely beyond the center of buoyancy at the most extreme tipping angle, and the pontoon effect cannot occur. Note, however, that this is not the sole effect to be taken into consideration when assessing the likelihood of capsize. The change in hull windage as the vessel heels is also important. In the case of a trimaran designed for cruising, with solid wing decks (as opposed to racing-type designs with mesh or open wings), those with wide-beam floats able