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.
Trimaran hull". The outrigger hulls are "floats". The structures between the main hull and the floats are called the "wings" and the structural portions thereof are "beams"). In cruising trimarans the wings are solid and cabin accommodation extends over them, while in racing trimarans accommodation is limited to the main hull and the wings are open sheets of netting. In comparison to outrigger canoes, trimarans typically feature a sail (or engine) and are not primarily designed to be paddled. Trimarans are typically significantly wider. In addition, trimaran floats are much more buoyant than those of outrigger canoes to support a large