catamarã

A catamarã is a type of multihull boat consisting of two parallel hulls of equal size. This distinct design provides several advantages over monohull vessels, including increased stability and a larger deck area. The two hulls are typically joined by a deck or frame.

The origin of the catamarã can be traced back to ancient Polynesian outrigger canoes, which used a similar concept to enhance stability and cargo capacity. In modern times, catamarãs are widely used for various purposes. They are popular for recreational sailing due to their speed and stability, often outperforming monohulls in certain conditions. They are also employed as ferries, offering a smooth ride and efficient passenger transport.

The stability of a catamarã comes from its wide beam, which resists heeling (tilting). This makes them well-suited for rough seas and reduces the risk of capsizing. The design also allows for shallower draft compared to monohulls of similar displacement, enabling access to areas that might be inaccessible to deeper-keeled boats. However, catamarãs can be more susceptible to pitchpoling (flipping end-over-end) in extreme conditions.

Catamarãs can be powered by sails or engines. Sailing catamarãs are known for their speed and agility. Motorized catamarãs are often used for commercial purposes, such as passenger ferries and tour boats, benefiting from their spaciousness and stable platform. The construction can range from lightweight composites for racing yachts to robust steel or aluminum for larger vessels.