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49er (dinghy)
The 49er and 49er FX is a two-handed skiff (sailing), skiff-type high-performance sailing dinghy. The two crew work on different roles with the helmsman, helm making many tactical decisions, as well as steering, and the crew doing most of the sail control. Both of the crew are equipped with their own Trapeze (sailing), trapeze and sailing is done while cantilevered over the water to the fullest extent to balance against the sails. The 49er was designed by Julian Bethwaite (the son of Frank Bethwaite) and developed by a consortium consisting of Bethwaites, Performance Sailcraft Japan, Peter Johnston, and Ovington boats. The boat has been an Olympic class since it was selected by the International Sailing Federation to be the men's high performance double handed dinghy Sailing at the 2000 Summer Olympics, Sydney Summer Games of 2000. Its derivative featuring a re-designed rig, the 49er FX, was selected by World Sailing to be the women's high performance double-hander at the Sailing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trapeze (Dinghy Gear)
In sailing, the trapeze is a wire that comes from a point high on the mast, usually where the shrouds are fixed, to a hook on the crew member's harness at approximately waist level. The position when extended on the trapeze is outside the hull, braced against it (or an extension of it outwards) with the soles of the feet, facing the masthead, and clipped on by a hook on the trapeze harness. This gives the crew member more leverage to keep the boat flat by allowing the crew member's centre of gravity to balance the force of the wind in the sails. An additional benefit is the ability to "walk" along the gunwale to balance the boat's trim fore and aft. This is necessary to prevent racing catamarans such as the Tornado from digging the bow into the water, also called pitchpoling, and causing a nosedive and often a spectacular capsize. Some boats may have only one trapeze, such as the 420 and the 29er, where only the crew uses the trapeze. Dinghies, such as the International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
49er Sail Boats
49er or Forty-niner most often refers to: *A miner or other person that took part in the 1849 California Gold Rush *San Francisco 49ers, an American football team 49er or Forty-niner may also refer to: Sports * Charlotte 49ers, athletic teams of the University of North Carolina at Charlotte * Long Beach State 49ers, former official and oft-used informal nickname for the athletic teams of California State University, Long Beach * Yuba 49ers, athletic teams of Yuba College * 49er (dinghy), an Olympic class of racing dinghy * Forty Niner (horse), American Thoroughbred racehorse * TKS 49ers, German basketball team at the southwest border of Berlin Music * 49ers (band), an Italian Italo house and Eurodance project * ''49ers'' (album) * The 49ers, an American hip-hop duo 49er a song by American heavy metal band Riot (now Riot V) from their 1979 Narita (album) Film * ''The Forty-Niners'' (1932 film), an American Western film directed by John P. McCarthy * ''The Forty-N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
29erXX
The 29er XX is a high performance sailing skiff, it was designed to allow light crews, particularly female crews, to sail twin trapeze boats and as a training boat for the more powerful 49er (dinghy), 49er. The class gained International Sailing Federation Class status in May 2011, but lost it in 2014. History The 29er XX was designed by Julian Bethwaite with help from Jen Glass. The 29er XX is a high-powered rig for the existing 29er hull, indeed the new rig is extremely similar to the 29er (boat), 29er's big brother - the 49er. This new rig is 0.45m longer than the standard 29er mast, and features carbon construction, double trapeze wires and three sets of shrouds. A masthead kite adds considerable speed downwind while the responsive 29er platform requires the sailors to move with precision through manoeuvres. Carbon tubes extend out the back of each rail to allow the crew to keep their weight further aft and the bow out of the water. Although initially many thought that the hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
29er (boat)
The 29er is a two-person high performance sailing skiff designed by Julian Bethwaite and first produced in 1998. Derived from the Olympic class 49er class, it is raced in the ISAF Youth Sailing World Championships. The 29er is able to reach high speeds fairly quickly by having a sleek and hydrodynamic hull and will often exceed the wind speed when planing both up and downwind. Background The 29er class is targeted at youth, especially those training to sail the larger Olympic 49er. The Youth Sailing World Championships has adopted it to replace the Laser 2 - which was designed by Julian Bethwaite's father Frank. The 29er has two sailors, one on trapeze. The rig features a fractional asymmetrical spinnaker; a self-tacking jib decreases the work load of the crew, making maneuvers more efficient and freeing the crew to take the mainsheet upwind and on two-sail reaches. The spinnaker rigging set-up challenges crews to be fit and coordinated, and maneuvers in the bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelcoat
Gelcoat or gel coat is a material used to provide a high-quality finish on the visible surface of a fibre-reinforced composite. The most common gelcoats are thermosetting polymers based on epoxy or unsaturated polyester resin chemistry. Gelcoats are modified resins which are applied to moulds in the liquid state. They are cured to form crosslinked polymers and are subsequently backed with thermoset polymer matrix composites which are often mixtures of polyester resin and fiberglass, or epoxy resin which is most commonly used with carbon fibre for higher specific strength. The manufactured component, when sufficiently cured and removed from the mould, presents the gelcoated surface. This is usually pigmented to provide a coloured, glossy surface which improves the aesthetic appearance of the article, such as the surface of a boat hull. Many marine craft and some aircraft are manufactured using composite materials with an outer layer of gelcoat, typically 0.5 mm to 0.8 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daggerboard
A daggerboard is a retractable centreboard used by various sailing craft. While other types of centreboard may pivot to retract, a daggerboard slides in a casing. The shape of the daggerboard converts the forward motion into a windward lift, countering the leeward push of the sail. The theoretical centre of lateral resistance is on the trailing edge of the daggerboard. General A daggerboard is a removable vertical keel that is inserted through a "trunk" in the center of a vessel's hull, usually amidships. Daggerboards are usually found in small sailing craft such as day sailers, which are easily handled by a single person. Daggerboards are not usually ballasted but are locked in place by a clip or pin. Unlike a centreboard, which can be set at different angles to the hull of the boat, daggerboards are generally limited to a single perpendicular position relative to the hull. If a daggerboard is located off center, it is called a leeboard or a bilgeboard. The characteristic whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudder
A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane. A rudder operates by redirecting the fluid past the hull or fuselage, thus imparting a turning or yawing motion to the craft. In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or afterend. Often rudders are shaped to minimize hydrodynamic or aerodynamic drag. On simple watercraft, a tiller—essentially, a stick or pole acting as a lever arm—may be attached to the top of the rudder to allow it to be turned by a helmsman. In larger vessels, cables, pushrods, or hydraulics may link rudders to steering wheels. In typical aircraft, the rudder is operated by pedals via mechanical linkages or hydraulics. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shroud (sailing)
On a sailing ship, the shrouds are the standing rigging which holds the mast (sailing), mast up from side to side. There is frequently more than one shroud on each side of the boat. Usually a shroud will connect at the top of the mast, and additional shrouds might connect partway down the mast, depending on the design of the boat. Shrouds terminate at their bottom ends at the Chainplate, chain plates, which are tied into the hull. They are sometimes held outboard by Chains (nautical), channels, a ledge that keeps the shrouds clear of the gunwales.''The Lore of Ships,'' ed. by Bengt Kihlberg. Göteborg :Tre tryckare & New York: Holt, Rinehart & Winston, 1963. Shrouds are attached symmetrically on both the port (nautical), port and starboard sides. For those shrouds which attach high up the mast, a structure projecting from the mast must be used to increase the angle of the shroud at the attachment point, providing more support to the mast. On most sailing boats, such structures ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sails
North Sails is an international sailmaker and sailing wear company with operations in 29 countries. The company designs, engineers and manufactures sails for sailboat racing, racing and cruising sailboats from 8 feet (2.5m) to more-than 200 feet (60m) in length. Licensees manufacture clothing and windsurfing sails. North Sails is the world’s largest sailmaker, with annual sales of $150 million in 2011. Sails by North Sails are used by the majority of competitors in the The Ocean Race, Ocean Race and the America’s Cup. History North Sails was founded in 1957 by Lowell North, in San Diego, California, San Diego, California. An engineer by training, North applied a rigorous, methodical approach to designing sails, with the goal of building sails that were faster than the competition’s. North began testing the strength and stretch characteristics of sailcloth he received from his suppliers, to eliminate variability in his raw materials. He introduced computer-driven laser cutting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weymouth Olympics Polish Mens 49er
Weymouth can refer to: Places United Kingdom *Weymouth, Dorset, England United States *Weymouth, Massachusetts, a city * Weymouth, Ohio, an unincorporated community *Weymouth Township, New Jersey, a township * Weymouth, Atlantic County, New Jersey, an unincorporated community * Weymouth Hall, a historic mansion in Natchez, Mississippi Elsewhere *Weymouth, Tasmania, Australia * Weymouth Bay, Queensland, Australia * Weymouth, Nova Scotia, Canada * Weymouth, New Zealand *Weymouth, Saint Michael, Barbados Other uses *Weymouth railway station *Weymouth F.C. *Weymouth College * HMS ''Weymouth'', several ships * 19294 Weymouth *Weymouth New Testament People *Ceawlin Thynn, Viscount Weymouth (born 1974), British peer *George Weymouth (c. 1585–c. 1612), English explorer * George Alexis Weymouth (1936–2016), American artist * George W. Weymouth (1850–1910), American politician *Katharine Weymouth (born 1966), former publisher of ''The Washington Post'' *Lally Weymouth (born 1943), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
