Sailing employs the wind—acting on sails, wingsails or kites—to propel a craft on the surface of the water, on ice (iceboat) or on land over a chosen course, which is often part of a larger plan of navigation.
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.
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 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.
A wingsail, twin-skin sail or double skin sail is a variable-camber aerodynamic structure that is fitted to a marine vessel in place of conventional sails. Wingsails are analogous to airplane wings, except that they are designed to provide lift on either side to accommodate being on either tack. Whereas wings adjust camber with flaps, wingsails adjust camber with a flexible or jointed structure. Wingsails are typically mounted on an unstayed spar—often made of carbon fiber for lightness and strength. The geometry of wingsails provides more lift, and a better lift-to-drag ratio, than traditional sails. Wingsails are more complex and expensive than conventional sails.
Yellow Pages Endeavour, or YPE, is an Australian sailboat designed for speed sailing, which held the outright 500 meter world record from October, 1993 to November, 2004, when it was taken by windsurfer Finian Maynard; Yellow Pages Endeavour still holds the C class record. Yellow Pages Endeavour has been succeeded in record attempts by the similarly designed Extreme 50, renamed Macquarie Innovation, built and operated by the same team.
The Topcat is a one-design sailing catamaran boat class which is divided into several boat sizes.
USA-17 is a sloop rigged racing trimaran built by the American sailing team BMW Oracle Racing to challenge for the 2010 America's Cup. Designed by VPLP Yacht Design with consultation from Franck Cammas and his Groupama multi-hull sailing team, BOR90 is very light for her size being constructed almost entirely out of carbon fiber and epoxy resin, and exhibits very high performance being able to sail at 2.0 to 2.5 times the true wind speed. From the actual performance of the boat during the 2010 America's Cup races, it can be seen that she could achieve a velocity made good upwind of over twice the wind speed and downwind of over 2.5 times the wind speed. She can apparently sail at 20 degrees off the apparent wind. The boat sails so fast downwind that the apparent wind she generates is only 5-6 degrees different from that when she is racing upwind; that is, the boat is always sailing upwind with respect to the apparent wind. An explanation of this phenomenon can be found in the article on sailing faster than the wind.
High-performance sailing is achieved with low forward surface resistance—encountered by catamarans, sailing hydrofoils, iceboats or land sailing craft—as the sailing craft obtains motive power with its sails or aerofoils at speeds that are often faster than the wind on both upwind and downwind points of sail. Faster-than-the-wind sailing means that the apparent wind angle experienced on the moving craft is always ahead of the sail. This has generated a new concept of sailing, called "apparent wind sailing", which entails a new skill set for its practitioners, including tacking on downwind points of sail.
The AC72 is a class of wingsail catamarans built to a box rule, which governs the construction and operation of yachts competing in the 2013 Louis Vuitton and the America's Cup races. The class was subsequently replaced by the smaller AC50 class.
The 2017 America's Cup was the 35th staging of the America's Cup yacht race. The challenger, Emirates Team New Zealand, won by a score of 7 to 1 over the defender, Oracle Team USA. It was held on the Great Sound in Bermuda from June 17 to June 26. The races were conducted using hydrofoiling AC50 America's Cup Class yachts, which are slightly larger than the AC45F yachts used in the 2015–16 America's Cup World Series.
The AC50 was a wingsail catamaran development rule that governed the construction of the yachts used in the 2017 Louis Vuitton Cup and the 2017 America's Cup. Like the larger AC72s used in the 2013 America's Cup, AC50s used L-shaped daggerboard stabilizers as well as T-shaped rudder elevators that were able to generate enough lift to allow the boats to exit displacement mode in winds in excess of 7kt. Prototype versions of crossbeams, wingsails, appendages, as well as steering and trimming systems had been tested by all syndicates on AC45 platforms as surrogate yachts before building their AC50. The class allowed hydraulic control of the wingsails and appendages. Motors and computer automation was banned in the class. Each challenger team was only allowed to build one AC50 for competition and only six boats were built. The class was replaced with the monohull AC75 after the 2017 America's Cup.
The America's Cup World Series are match races and fleet regattas used as heats for the 2013 America's Cup and the 2017 America's Cup.
The GC32 is a class of hydrofoiling catamaran, 32 feet in length and constructed of carbon fibre, with a top speed of about 40 knots. They are sailed in the GC32 Racing Tour, and have replaced the Extreme 40's in the Extreme Sailing Series.
INEOS Britannia is a British sailing team that is the challenger of record for the 37th America's Cup.
Miss Nylex is a C-Class racing catamaran, designed and built in Australia in the 1970s specifically to compete in the International Catamaran Challenge Trophy (ICCT). It has a single wingsail with two aerodynamic flaps, instead of the conventional mast and sail combination.
SailGP is an international sailing competition that features high-performance F50 foiling catamarans, where teams compete across a season of multiple grands prix around the world. The reigning champion is Diego Botín's Spain SailGP Team, who won the 2023–24 SailGP championship.
The Flying Phantom Essentiel,, is a French hydrofoil catamaran sailing dinghy that was designed by Gonzalo Redondo and Martin Fischer and first built in 2017.
The 2023–24 SailGP Championship is the fourth season of the SailGP championship. It was won by the Spanish team, the first time the Australian team did not win the championship.
The New Zealand SailGP Team is a New Zealand Sailing team led by Peter Burling and Blair Tuke which participates in SailGP.
