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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 sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture.
A catamaran is a watercraft with two parallel hulls of equal size. The wide distance between a catamaran's hulls imparts stability through resistance to rolling and overturning; no ballast is required. 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.
The Tornado is a double handed multihull class recognised as an International Class by the International Sailing Federation. It was used for the Catamaran discipline at the Olympic Games from 1976 to 2008.
The Portsmouth Yardstick (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing.
The Formula 18 (F18) class is a non-foiling, restricted development, formula-design sport catamaran class. It was started in the early 1990s and quickly grew getting class recognition by World Sailing, with large racing fleets all over the globe.
Éric Marcel Guy Tabarly was a French naval officer and yachtsman. He developed a passion for offshore racing very early on and won several ocean races such as the Ostar in 1964 and 1976, ending English domination in this specialty. Several of his wins broke long standing records. He owed his successes to his exceptional mastery of sailing and of each one of his boats, to both physical and mental stamina and, in some cases, to technological improvements built into his boats. Through his victories, Tabarly inspired an entire generation of ocean racers and contributed to the development of nautical activities in France.
ORMA 60 is a class of sailing trimarans administered by the Ocean Racing Multihull Association (ORMA) that created in 1996 by the International Sailing Federation (ISAF) within the sport of sailing. The boats were built to a box rule that permitted 60 feet length and beam and a 100-foot mast.
The Transat Jacques Vabre is a yachting race that follows the historic coffee trading route between France and Brazil. It is named after a French brand of coffee.
The Dart 18 is a one-design 18-foot (5.5 m) long glassfibre sailing catamaran. It is designed to be sailed by two people and can achieve speeds of up to 20 knots. This is reflected in its Portsmouth Yardstick of 805 and D-PN of 76.3
The Topcat is a one-design sailing catamaran boat class which is divided into several boat sizes.
The SL 16 is a 4.80 m long fiberglass sailing catamaran. It is designed to be sailed by two people. The SL 16 was selected by ISAF in 2005 for the Youth Sailing World Championships.
The Latvian Basketball League also known as the Pafbet LBL for sponsorship reasons, is the top-level national basketball championship in Latvia composed of 6 teams. Since 2018/19, only the playoff matches are played, as the top Latvian clubs play the regular season in the Latvian–Estonian Basketball League. The LBL is governed by the Latvian Basketball Association, the national governing body of basketball in Latvia.
Lagoon catamaran is a brand of twin-hulled boats that are designed and produced in Bordeaux, France.
James Wharram was a British multihull pioneer and designer of catamarans.
The Nacra 17 is a performance catamaran used for sailing. It was designed in 2011, went into production in 2012 and has been the focus of multihull sailing at the Olympic Games since its conception.
The Viper is a performance catamaran used for racing; it is a one design within the Formula 16 class. It is recognised as a class by the International Sailing Federation.
Catri 25 is a foiled trimaran marketed by Catrigroup of Latvia that underwent initial testing in 2013–2014. It was designed as "an ultimate speed Category C cruising & racing micro-trimaran", with speed advantages provided by the hydrofoils. It follows the previous Catri23 and Catri24 designs.
Aldis Eglājs is a Latvian multihull sailboat designer.
The Nacra 15 is a performance catamaran used for racing. It went into production in 2015. It was designed as a smaller version of the Olympic multihull class, the Nacra 17.
References
- 1 2 3 4 5 6 7 8 9 "Latian Multihull Association: Year 1973". Latvian Multihull Association. Archived from the original on 2004-12-16. Retrieved 2014-11-28.