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USA-17
''USA-17'' (formerly known as ''BMW Oracle Racing 90'' or ''BOR90'') 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2010 America's Cup
The 33rd America's Cup between Société Nautique de Genève defending with team Alinghi against Golden Gate Yacht Club, and their racing team BMW Oracle Racing was the subject of extensive court action and litigation, surpassing in acrimony even the controversial 1988 America's Cup. Since the two parties were unable to agree otherwise, the match took place as a one-on-one deed of gift matchThe Deed of Gift language for this eventuality is: ''"In case the parties cannot mutually agree upon the terms of a match, then three races shall be sailed, and the winner of two of such races shall be entitled to the Cup. All such races shall be on ocean courses, free from headlands, as follows: The first race, twenty nautical miles to windward and return; the second race an equilateral triangular race of thirty-nine nautical miles, the first side of which shall be a beat to windward; the third race (if necessary) twenty nautical miles to windward and return; and one week day shall intervene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW Oracle Racing
Oracle Team USA is an American yacht racing syndicate initially formed to compete for the 2003 America's Cup. They competed again in the 2007 event before winning the 33rd America's Cup regatta in 2010 – representing the Golden Gate Yacht Club. The team also won the 2013 America's Cup, 34th America's Cup in 2013. The syndicate was initially named ''Oracle'' for the 2003 campaign and backed primarily by Larry Ellison, the co-founder and CEO of Oracle Corporation, but was renamed in August 2004 to ''Oracle BMW Racing'' to reflect the Germany, German company's role, and subsequently revised again to ''BMW Oracle Racing'' to reflect increased involvement from ''BMW''. At the end of December 2010 it was announced that by mutual agreement of both partners, BMW was bringing to a close its longstanding partnership with Oracle Racing and thereby ending its involvement in the America's Cup. Subsequently, the syndicate was renamed to ''Oracle Team USA'' to compete for the 2013 34th America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingsail
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 (for hard wingsails). 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. Introduction Wingsails are of two basic constructions that create an airfoil, "soft" and "hard", both mounted on an unstayed rotating mast. Whereas hard wingsails are rigid structures that are stowed only upon removal from the boat, soft wingsails can be furled or stowed on board. L. Fra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oracle Team USA
Oracle Team USA is an American yacht racing syndicate initially formed to compete for the 2003 America's Cup. They competed again in the 2007 event before winning the 33rd America's Cup regatta in 2010 – representing the Golden Gate Yacht Club. The team also won the 34th America's Cup in 2013. The syndicate was initially named ''Oracle'' for the 2003 campaign and backed primarily by Larry Ellison, the co-founder and CEO of Oracle Corporation, but was renamed in August 2004 to ''Oracle BMW Racing'' to reflect the German company's role, and subsequently revised again to ''BMW Oracle Racing'' to reflect increased involvement from ''BMW''. At the end of December 2010 it was announced that by mutual agreement of both partners, BMW was bringing to a close its longstanding partnership with Oracle Racing and thereby ending its involvement in the America's Cup. Subsequently, the syndicate was renamed to ''Oracle Team USA'' to compete for the 2013 34th America's Cup. History 31st Ame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sail
A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments—usually in a three- or four-sided shape. A sail provides propulsive force via a combination of lift and drag, depending on its angle of attack—its angle with respect to the apparent wind. Apparent wind is the air velocity experienced on the moving craft and is the combined effect of the true wind velocity with the velocity of the sailing craft. Angle of attack is often constrained by the sailing craft's orientation to the wind or point of sail. On points of sail where it is possible to align the leading edge of the sail with the apparent wind, the sail may act as an airfoil, generating propulsive force as air p ... [...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] |
List Of Large Sailing Yachts ...
This article lists active sailing yachts in excess of in sparred length. This list features vessels with sails which were classed as yachts when they were launched as well as any vessels which were subsequently converted to operate with sails and re-classed as yachts. Comparison of largest yachts Full list See also *Comparison of large sloops *List of large sailing vessels *List of motor yachts by length * List of sailboat designers and manufacturers * List of schooners References * * *{{citation, url=http://www.superyachtintelligence.com/superyachts/?TYPE=SY, title=list of large sailing yachts, publisher=Synfo Lists of individual sailing yachts Sailing yacht A sailing yacht (US ship prefixes SY or S/Y), is a leisure craft that uses sails as its primary means of propulsion. A yacht may be a sail or power vessel used for pleasure, cruising, or racing. There is no standard definition, so the term applie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterline Length
A vessel's length at the waterline (abbreviated to L.W.L)Note: originally Load Waterline Length is the length of a ship or boat at the level where it sits in the water (the ''waterline''). The LWL will be shorter than the length of the boat overall (''length overall'' or LOA) as most boats have bows and stern protrusions that make the LOA greater than the LWL. As a ship becomes more loaded, it will sit lower in the water and its ambient waterline length may change; but the registered L.W.L it is measured from a default load condition. This measure is significant in determining several of a vessel's properties, such as how much water it displaces, where the bow and stern waves occur, hull speed, amount of bottom-paint needed, etc. Traditionally, a stripe called the "boot top" is painted around the hull just above the waterline. In sailing boats, longer waterline length will usually enable a greater maximum speed, because it allows greater sail area, without increasing beam or d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anacortes, WA
Anacortes ( ) is a city in Skagit County, Washington, United States. The name "Anacortes" is an adaptation of the name of Anne Curtis Bowman, who was the wife of early Fidalgo Island settler Amos Bowman.Historical Timeline " Anacortes History Museum '' July 10, 2006. Retrieved on August 14, 2007. Anacortes' population was 17,637 at the time of the 2020 census. It is one of two principal cities of and included in the |
Wind Gradient
In common usage, wind gradient, more specifically wind speed gradient or wind velocity gradient, or alternatively shear wind, is the vertical component of the gradient of the mean horizontal wind speed in the lower atmosphere. It is the rate of increase of wind strength with unit increase in height above ground level. In metric units, it is often measured in units of meters per second of speed, per kilometer of height (m/s/km), which reduces to the standard unit of shear rate, inverse seconds (s−1). Simple explanation Surface friction forces the surface wind to slow and turn near the surface of the Earth, blowing directly towards the low pressure, when compared to the winds in the nearly frictionless flow well above the Earth's surface. This layer, where surface friction slows the wind and changes the wind direction, is known as the planetary boundary layer. Daytime solar heating due to insolation thickens the boundary layer as winds warmed by contact with the ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocity Made Good
Velocity made good, or VMG, is a term used in sailing, especially in yacht racing, indicating the speed of a sailboat towards (or from) the direction of the wind. The concept is useful because a sailboat cannot sail directly upwind, and thus often can not, or should not, sail directly to a mark to reach it as quickly as possible. It is also often less than optimal to sail directly downwind. Concept Instead of sailing directly toward a windward mark, the helmsman chooses a point of sail towards the direction of the wind that maximizes Velocity Made Good (either towards the destination - or towards better winds). To actually reach a mark, the boat needs to alternate between courses (''tacks'') where the wind approaches from alternating sides. The helmsman uses VMG to find exactly what the optimum angle against the wind is. At the optimum boat speed and angle to the wind, VMG is maximized, steering closer to the direction of the wind will reduce boat speed, while steering further away ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racing Rules Of Sailing
The Racing Rules of Sailing (often abbreviated to RRS) govern the conduct of yacht racing, windsurfing, kitesurfing, model boat racing, dinghy racing and virtually any other form of racing around a course with more than one vessel while powered by the wind. A new revision is published every four years (after the Olympic Games) by World Sailing, the sport's world governing body. Full information on the rules can be viewed at World Sailing. Contents of the Rules Racing Rules of Sailing were most dramatically simplified in 1997 since the 1940s. The new document contains four main rules art 2, Section A # Boats on a port tack shall keep clear of boats on starboard tack (Rule 10). # When boats are on the same tack and overlapped, the boat to windward (the boat closest to the wind) shall keep clear of a leeward boat (Rule 11). # When boats are on the same tack and not overlapped, the boat that is astern shall keep clear of the boat ahead. (Rule 12). # When a boat is tacking (chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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