A catamaran is a sailing boat with two parallel hulls that are held in place by a single deck. a sailing boat with two separate hulls (=the part that goes in the water) (kattumaram, from kattu + maram ). Twin-hulled sailing and engine-powered boat. Its design was based on a raft of two logs bridged by planks used by peoples in the Indonesian archipelago, Polynesia, and Micronesia. Up to 70 ft (21 m) long, early catamarans were paddled by many men and used for travel, in war, and in recreation. Especially after the sail was added, voyages as long as 2,000 mi (3,700 km) were made. In the 1870s they sailed so successfully against monohulled boats that they were barred from racing. The modern catamaran, which averages about 40 ft (12 m) in length, has been produced since 1950. They are very fast craft, achieving speeds of 20 mph (32 kph)
A kind of raft or float, consisting of two or more logs or pieces of wood lashed together, and moved by paddles or sail; used as a surf boat and for other purposes on the coasts of the East and West Indies and South America
A double or treble-hulled vessel constructed in wood, aluminum or reinforced glass fibre and is also composed of two or three hulls diagonally joined together by various methods Normally no ballast is needed to counteract the center buoyancy since it enjoys good stability at sea