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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. History Frank Bethwaite offers the following chronology of key advances in sailing technology that provided the essential elements of high-performance sailing: * 1900s: Moveable ballast and planing hulls were emerging. * 1960s: Flexible masts, sail-shaping controls, and knowledge of exploiting wind shifts in racing were developed. * 1970s: Powerful rigs, including wingsails, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extreme 40
The Extreme 40 is a class of sailing catamaran created by TornadoSport and designed by Yves Loday. The boats are 40 feet long and are constructed out of carbon fibre. They have a top speed of about and can sail at about in 20–25 knots of wind The first extreme 40 was launched in 2005. They were sailed in the Extreme Sailing Series, formerly known as the iShares Cup. Extreme 40s are essentially a scaled-up version of the Tornado sailboat used in The Olympics. Extreme 40's are long, have a beam, displace of water, have a mast height of and a claimed top speed of . The mainsail is and the jib is . The gennaker A gennaker is a sail that was developed around 1990. Used when sailing downwind, it is a cross between a genoa and a spinnaker. It is not symmetric like a true spinnaker but is asymmetric like a genoa, but the gennaker is not attached to the f ... used for downwind sailing is . References External links {{commonscat, Extreme 40 *https://web.archive.org/web/ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Sailing
Land sailing, also known as sand yachting, land yachting or dirtboating, is the act of moving across land in a wheeled vehicle powered by wind through the use of a sail. The term comes from analogy with (water) sailing. Historically, land sailing was used as a mode of transportation or recreation. Since the 1950s, it has evolved primarily into a racing sport. Vehicles used in sailing are known as sail wagons, sand yachts, or land yachts. They typically have three (sometimes four) wheels and function much like a sailboat, except that they are operated from a sitting or lying position and steered by pedals or hand levers. Land sailing works best in windy flat areas, and races often happen on beaches, airfields, and dry lake beds in desert regions. Modern land sailors, generally known as "pilots", can go three to four times faster than the wind speed. A gust of wind is considered more beneficial in a land sailing race than a favorable windshift. A similar sport, known as ice yachti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forces On Sails
Forces on sails result from movement of air that interacts with sails and gives them motive power for sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and sail-powered land vehicles. Similar principles in a rotating frame of reference apply to windmill sails and wind turbine blades, which are also wind-driven. They are differentiated from forces on wings, and propeller blades, the actions of which are not adjusted to the wind. Kites also power certain sailing craft, but do not employ a mast to support the airfoil and are beyond the scope of this article. Forces on sails depend on wind speed and direction and the speed and direction of the craft. The direction that the craft is traveling with respect to the "true wind" (the wind direction and speed over the surface) is called the point of sail. The speed of the craft at a given point of sail contributes to the "apparent wind"—the wind speed and direction as measured on the moving craft. The apparen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icicle (yacht)
Icicle is the name of the largest ice yacht ever built. It was built for John Aspinwall Roosevelt for racing on the Hudson River, New York state in 1869. It was long and carried of canvas. The yacht is still, over 140 years later, recognized by the ''Guinness Book of Records'' as a world record. John A. Roosevelt (Franklin Delano Roosevelt's Uncle) was the first Commodore of the Hudson River Ice Yacht Club (1885) at Poughkeepsie, NY. His ice yacht, "Icicle", required a railway flat car to transport. In 1871 "Icicle" beat the "Chicago Express" train on a run between Poughkeepsie and Ossining. Early ice yacht clubs spent most of their time racing trains. As of 2021 a man named David Janzen is building an ice boat that will beat Icicle’s world record by being 22 metres long. References *''Guinness Book of Records ''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vestas Sailrocket
The ''Vestas Sailrocket'' was built to capture the sailing speed record competing in the B-class for 150 to 235 square feet of sail. It is piloted by the project leader Paul Larsen and sponsored by Danish wind turbines manufacturer Vestas. In 2008 the first version reached a reported unofficial speed of , before crashing. After being upgraded to a second version, the ''Vestas Sailrocket 2'' began a campaign to break speed records in November 2012 off Walvis Bay, Namibia. On 12 November, it made a run over a distance, then on the 16th. It attained on a one-mile run on the 18th and simultaneously on 500m. On 24 November, with wind speeds at roughly , it ran the 500m course at with a peak. Both records are ratified by the World Sailing Speed Record Council (WSSRC) for the 500m and the mile. A Swiss team of École Polytechnique Fédérale de Lausanne university students and engineers, including members involved in the development of previous record-holder ''Hydroptère'', form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Sailing Record
Speed sailing records are sanctioned, since 1972, by the World Sailing Speed Record Council (WSSRC). Records are measured either by average speed over a specified distance or by total distance traveled during a specified time interval. The three most sought after records are the: * ''500 metre (or "outright") record'' is held by Paul Larsen. On 24 November 2012 he sailed the Vestas Sailrocket 2 at 65.45 knots in Walvis Bay, Namibia. * ''Nautical mile record'' is held by Paul Larsen. On 18 November 2012 he sailed the Vestas Sailrocket 2 at 55.32 knots in Walvis Bay, Namibia. * ''24 Hour distance record'' is held by Pascal Bidégorry. On 1 August 2009 he sailed the Banque Populaire V 908 nautical miles (at 37.84 knots). This was while he was breaking the northern Atlantic record. 500 metre records Class records Last updated: 19 November 2012. Nautical mile records Day's run A ''Day's run'' is the distance traveled by a vessel in one day, normally measured from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroptère
''Hydroptère'' is a French experimental sailing hydrofoil trimaran imagined by the yachtman Éric Tabarly. The Hydroptère project was managed by Alain Thébault, the design done by naval architects VPLP design and the manufacturing by a group of French high-tech companies. Its multihull hydrofoil design allows the sail-powered vessel to reach high speeds on water. The design is based on experience from a range of hydrofoil sailcraft that Thébault built in cooperation with Éric Tabarly since the 1980s. On 5 October 2008 she reached a record speed of , however this was over a shorter distance than the 500m necessary to qualify for an official world record. On 21 December 2008, the ''Hydroptère'' briefly reached near Fos-sur-Mer, but capsized and turtled shortly thereafter. On 4 September 2009, the ''Hydroptère'' broke the outright world record, sustaining a speed of for in of wind. In November 2009, she broke the barrier for a nautical mile with a speed of in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimaran
A trimaran (or double-outrigger) is a multihull boat that comprises a main hull and two smaller outrigger hulls (or "floats") 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. Terminology The word "trimaran" is a portmanteau of "tri" and "(cata)maran", a term that is thought to have been coined by Victor Tchetchet, a pioneering, Ukrainian-born modern multihull designer. Trimarans consist of a main hull connected to outrigger floats on either side by a crossbeam, wing, or other form of superstructure—the traditional Polynesian terms f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrofoil
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. Description The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats (see illustration). As a hydrofoil-equipped watercraft increases in speed, the hydrofoil elements below the hull(s) develop enough lift to raise the hull out of the water, which greatly reduces hull drag. This provides a corresponding increase in speed and fuel efficiency. Wider adoption of hydrofoils is prevented by the increased complexity of building and maintaining them. Hydrofoils are generally prohibitively more expensive than conventional watercraft above a certain disp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
America's Cup
The America's Cup, informally known as the Auld Mug, is a trophy awarded in the sport of sailing. It is the oldest international competition still operating in any sport. America's Cup match races are held between two sailing yachts: one from the yacht club that currently holds the trophy (known as the defender) and the other from the yacht club that is challenging for the cup (the challenger). Matches are held several years apart on dates agreed between the defender and the challenger. There is no fixed schedule, but the races have generally been held every three to four years. The most recent America's Cup match took place in March 2021. The cup was originally known as the 'R.Y.S. £100 Cup', awarded in 1851 by the British Royal Yacht Squadron for a race around the Isle of Wight in the United Kingdom. The winning yacht was a schooner called '' America'', owned by a syndicate of members from the New York Yacht Club (NYYC). In 1857, the syndicate permanently donated the tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
America's Cup 75 Class
The AC75 (America's Cup 75) is a racing yacht used in the 2021 America's Cup match and planned to be used for the 37th America's Cup and 38th America's Cup matches. The monohulls feature wing-like sailing hydrofoils mounted under the hull, a soft wingsail, and no keel. The rule Following the 2017 America's Cup, winners Royal New Zealand Yacht Squadron accepted a notice of challenge from Circolo della Vela Sicilia stipulating a monohull would be used in 2021. Conceptual graphics of a monohull with soft sails and topside canting hydrofoils were released on 21 November 2017, and the first draft of the class rule was published by the defender and the challenger of record on 29 March 2018. The return to monohulls with soft sails after three America's Cups on multihulls with wingsails is reminiscent of earlier America's Cup classes and seaworthy traditions, but the rule included hydrofoils to attract high performance crews and large TV audiences. Under the protocol, each competi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_and_down_wind_(left).jpg "Click for more on -> Forces On Sails")
