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A multihull is a boat or ship with more than one hull, whereas a vessel with a single hull is a monohull. The most common multihulls are catamarans, and trimarans. There are other types, with four or more hulls, but such examples are very rare and tend to be specialised for particular functions.
A catamaran is a watercraft with two parallel hulls of equal size. The distance between a catamaran's hulls imparts resistance to rolling and overturning. Catamarans typically have less hull volume, smaller displacement, and shallower draft (draught) than monohulls of comparable length. The two hulls combined also often have a smaller hydrodynamic resistance than comparable monohulls, requiring less propulsive power from either sails or motors. The catamaran's wider stance on the water can reduce both heeling and wave-induced motion, as compared with a monohull, and can give reduced wakes.
A trimaran is a multihull boat that comprises a main hull and two smaller outrigger hulls which are attached to the main hull with lateral beams. Most modern trimarans are sailing yachts designed for recreation or racing; others are ferries or warships. They originated from the traditional double-outrigger hulls of the Austronesian cultures of Maritime Southeast Asia; particularly in the Philippines and Eastern Indonesia, where it remains the dominant hull design of traditional fishing boats. Double-outriggers are derived from the older catamaran and single-outrigger boat designs.
Hobie Cat is a company that manufactures watercraft and other products as the Hobie Cat Company. "Hobie Cat" can also refer to specific products of the company, notably its sailing catamarans. Its fiberglass catamaran models range in nominal length between 14 feet (4.3 m) and 18 feet (5.5 m). Rotomolded catamaran models range in length between 12 feet (3.7 m) and 17 feet (5.2 m). Other sailing vessels in the Hobie Cat lineup include, monocats, dinghies, and trimarans, ranging in length between 9 feet (2.7 m) and 20 feet (6.1 m). Its largest product was the Hobie 33, 33 feet (10 m) in length. The company's non-sailing product line includes surfboards, kayaks, stand-up paddle boards, pedalboards, eyeware, and e-bikes. It was founded in 1961 by Hobart (Hobie) Alter, who originally manufactured surfboards.
A boat is said to be turtling or to turn turtle when it is fully inverted. The name stems from the appearance of the upside-down boat, similar to the carapace of a sea turtle. The term can be applied to any vessel; turning turtle is less frequent but more dangerous on ships than on smaller boats. It is rarer but more hazardous for multihulls than for monohulls, because multihulls are harder to flip in both directions. Measures can be taken to prevent a capsize from becoming a turtle.
A sailing hydrofoil, hydrofoil sailboat, or hydrosail is a sailboat with wing-like foils mounted under the hull. As the craft increases its speed the hydrofoils lift the hull up and out of the water, greatly reducing wetted area, resulting in decreased drag and increased speed. A sailing hydrofoil can achieve speeds exceeding double and in some cases triple the wind speed.
LOMOcean Marine is a naval architecture and yacht design company based in Auckland, New Zealand.
The Düsseldorf International Boat Show, more commonly known as boot Düsseldorf or just boot is one of the world's premier boat shows.
Farrier Marine is a catamaran and trimaran manufacturer based in Christchurch, New Zealand.
The F-27 Sport Cruiser is an American trailerable trimaran sailboat that was designed by New Zealander Ian Farrier in 1984–1985.
The Siren 17 is a Canadian trailerable sailboat, that was designed by Hubert Vandestadt as trailer sailer and first built in 1974.
The F-31 Sport Cruiser is a family of American trailerable trimaran sailboats that was designed by New Zealander Ian Farrier and first built in 1991.
The Dufour 1800 is a French sailboat that was designed by Laurent Cordelle and Michel Dufour as a trailerable cruiser-racer and first built in 1979.
J/Boats is an American boat builder based in Newport, Rhode Island and founded by Rod Johnstone in 1977. The company specializes in the design and manufacture of fiberglass sailboats.
The Bristol Corsair 24, also called the Bristol 24, Bristol 24 Corsair, Sailstar Corsair 24, Sailstar 24 and just the Corsair 24, is an American trailerable sailboat that was designed by Paul Coble as a cruiser and first built in 1964.
The Corsair Cruze 970, also called the Corsair 970, is a Vietnamese trailerable sailboat that was designed by the Corsair Design Team as a cruiser and first built in 2012. The boat is a development of the Corsair 31.
The Corsair 24, also called the Corsair F-24, is an American trailerable sailboat that was designed by Ian Farrier as a racer-cruiser. The boat was produced in two versions, the centerboard-equipped Mark I and the daggerboard Mark II.
The Farrier F-24, also called the Corsair F-24, is an American trailerable trimaran that was designed by Ian Farrier as a racer-cruiser and first built in 1991.
The F-24 Sport Cruiser is an American trailerable trimaran that was designed by Ian Farrier as a cruising version of the Farrier F-24. It was first built in 1991.
References
- ↑ "Børge Ousland". Ousland.no. Retrieved 2010-06-22.
- ↑ "Corsair Sprint 750: 2007 Sportboat of the Year". 5 January 2007.
- ↑ Powlison, Meredith (January–February 2013). "Multiplying on the Bay". Sailing World. Bonnier.