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SRS (sailing)
Svenskt Respitsystem (SRS), formerly known as Leading Yard Stick and Lidingö Municipality, Lidingö Yard Stick (LYS). SRS is a semi-empirically based handicapping system used in yacht racing in the Nordic countries. The first version of the handicap system was developed in 1970 by the Swedish yacht designer Lars-Olof Norlin. He based the system on regatta results from the Round Lidingö Race. His own design, Allegro 27, was used as the benchmark and was by definition assigned a LYS value of 1.00. Every yacht model has a SRS number that was previously based on results in regattas or, for new models, based on a velocity prediction program (VPP) as in International Measurement System, IMS and some other handicapping systems. The SRS number is multiplied by the measured time in order to get the handicap corrected time. Thus, a yacht with SRS 1.30 needs to sail at least 30% faster than a yacht with SRS 1.00 to win over it. Trimarans of the type open OMRA 60, designed for racing only, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidingö Municipality
Lidingö Municipality (''Lidingö kommun'' semi-officially named as ''Lidingö stad'') is a municipality east of Stockholm in Stockholm County in east central Sweden. Its seat is located on the island of Lidingö. The municipality is a part of Metropolitan Stockholm. It is chiefly located on the island Lidingö, but also incorporates a few smaller islands in the surroundings, most notably the Fjäderholmarna islands within the Stockholm archipelago. Being an island municipality it has not been amalgamated with any other entities. The small island of Tranholmen has, however, been transferred to Danderyd Municipality. The rural municipality was made a market town (''köping'') in 1910, a city in 1926 and a unitary municipality in 1971. The municipality always refers to itself as ''Lidingö stad'' ("''the City of Lidingö''"). This was a decision taken by the municipal assembly (kommunfullmäktige) in 1992. Geography The island Lidingö is connected to the city of Stockholm by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handicapping
Handicapping, in sport and games, is the practice of assigning advantage through scoring compensation or other advantage given to different contestants to equalize the chances of winning. The word also applies to the various methods by which the advantage is calculated. In principle, a more experienced participant is disadvantaged, or a less experienced or capable participant is advantaged, in order to make it possible for the less experienced participant to win whilst maintaining fairness. Handicapping is used in scoring many games and competitive sports, including go, shogi, chess, croquet, golf, bowling, polo, basketball, and track and field events. Handicap races are common in clubs which encourage all levels of participants, such as swimming or in cycling clubs and sailing clubs, or which allow participants with a variety of standards of equipment. Often races, contests or tournaments where this practice is competitively employed are known as ''Handicaps''. Handicappi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yacht Racing
Yacht racing is a Sailing (sport), sailing sport involving sailing yachts and larger sailboats, as distinguished from dinghy racing, which involves open boats. It is composed of multiple yachts, in direct competition, racing around a course marked by buoys or other fixed navigational devices or racing longer distances across open water from point-to-point. It can involve a series of races with buoy racing or multiple legs when point-to-point racing. History Yachting, that is, recreational boating, is very old, as exemplified in the ancient poem Catullus 4: The yacht you see there, friends, says that she's been The fastest piece of timber ever seen; She swears that once she could have overhauled All rival boats, whether the challenge called For racing under canvas or with oars. (trans. James Michie) "Yacht" is referred to as deriving from either Norwegian ("jagt"), Middle Low German ("jaght") or from the Dutch word jacht, which means "a swift light vessel of war, commerce or p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordic Countries
The Nordic countries (also known as the Nordics or ''Norden''; literal translation, lit. 'the North') are a geographical and cultural region in Northern Europe and the Atlantic Ocean, North Atlantic. It includes the sovereign states of Denmark, Finland, Iceland, Norway and Sweden; the autonomous administrative division, autonomous territories of the Faroe Islands and Greenland; and the autonomous region of Åland. The Nordic countries have much in common in their way of life, History of Scandinavia, history, religion and Nordic model, social structure. They have a long history of political unions and other close relations but do not form a singular entity today. The Scandinavism, Scandinavist movement sought to unite Denmark, Norway and Sweden into one country in the 19th century. With the dissolution of the union between Norway and Sweden (Norwegian independence), the independence of Finland in the early 20th century and the 1944 Icelandic constitutional referendum, this move ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yacht Design
Shipbuilding is the construction of ships and other floating vessels. It normally takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history. Shipbuilding and ship repairs, both commercial and military, are referred to as "naval engineering". The construction of boats is a similar activity called boat building. The dismantling of ships is called ship breaking. History Pre-history The earliest known depictions (including paintings and models) of shallow-water sailing boats is from the 6th to 5th millennium BC of the Ubaid period of Mesopotamia. They were made from bundled reeds coated in bitumen and had bipod masts. They sailed in shallow coastal waters of the Persian Gulf. 4th millennium BC Ancient Egypt Evidence from Ancient Egypt shows that the early Egyptians knew how to assemble planks of wood into a ship hull as early as 3100 BC. Egyptian potte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Round Lidingö Race
Round Lidingö Race ( sv, Lidingö runt), is a one course sailboat race, counter clockwise round Lidingö Municipality in the inner part of Stockholm archipelago arranged by Lidingö Segelsällskap, and is held annually the second Saturday in May, the first one being held in 1949. Background The course of the Round Lidingö Race is about 13,5 M. For many sailboats enthusiasts, the race sets the starting point for the sailing season in the Baltic Sea. Usually a couple of extreme racing yachts participate to make the final adjustments for the events to come later on, such as the Round Gotland Race and to increase the general public interest for sailing races, but most of all, a good opportunity to expose the sponsors trademarks. The number of participating boats is about 400–450, most of them with standard family yachts. 2009 event In the 2009 race, two extreme boats participated; one Trimaran, type open OMRA 60 and one Super Maxi 100. Fastest boats without regard to LYS. Winds: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegro 27
Allegro may refer to: Common meanings * Allegro (music), a tempo marking indicate to play fast, quickly and bright * Allegro (ballet), brisk and lively movement Artistic works * L'Allegro (1645), a poem by John Milton * ''Allegro'' (Satie), an 1884 piano piece by Erik Satie * "Allegro", any of several musical works in Nannerl Notenbuch by Wolfgang Amadeus Mozart * "Allegro", a composition by Bear McCreary in Music of ''Battlestar Galactica'' * ''Allegro'' (film), a 2005 Danish film by Christoffer Boe * ''Allegro'' (musical), a 1947 musical by Rodgers and Hammerstein Businesses and brands * Allegro (website), a Polish e-commerce platform * Allegro (restaurant), a luxury restaurant in Prague * Allegro (train), a passenger train service between Helsinki and Saint Petersburg * Allegro Coffee Co., a beverage company acquired by Whole Foods Market * Austin Allegro, a car once manufactured by British Leyland * Mazda Allegro, a car manufactured in South America as a version of Mazda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocity Prediction Program
A velocity prediction program (VPP) is a computer program which solves for the performance of a sailing yacht in various wind conditions by balancing hull and sail forces. VPPs are used by yacht designers, boat builders, model testers, sailors, sailmakers, also America's Cup teams, to predict the performance of a sailboat before it has been built or prior to major modifications. Background The first VPP was developed at the Massachusetts Institute of Technology during the early 1970s when Commodore H. Irving Pratt funded research to predict the performance ''"of a sailing yacht, given knowledge of its hull, rig and sailplan geometry"''. Methodology VPPs are iterative programs which require educated guesses of initial parameters to begin operating. Generally VPPs are composed of two mechanisms, a ''boat model'' and a ''solution algorithm''. Initial guesses of parameters including boat speed (Vs), heel angle (Φ), number of reefs and sail flatness are input into the ''bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Measurement System
The International Measurement System (IMS) is a system of handicapping sailboats for the purpose of racing that replaced the earlier International Offshore Rule (IOR) system in the early 1990s. It is managed by the Offshore Racing Congress (ORC). In the sailing world it is usually referred to simply as 'IMS'. Synopsis IMS was the first yacht racing rule developed around the central idea of a Velocity prediction program (VPP). The VPP was a complex computer program that integrated continuous hullform information in order to predict a given boat's speed potential in a given wind velocity. Details on the VPP were openly available to the yachting community, in contrast to the earlier IOR system. Designers and boat owners much preferred this as they were able to design new yachts to maximise performance under the rule with a degree of certainty they had not enjoyed under the IOR rule. IMS is generally believed to have made significant leaps of progress forward from the IOR rule it di ... [...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] |
Knot (unit)
The knot () is a unit of speed equal to one nautical mile per hour, exactly (approximately or ). The ISO standard symbol for the knot is kn. The same symbol is preferred by the Institute of Electrical and Electronics Engineers (IEEE), while kt is also common, especially in aviation, where it is the form recommended by the International Civil Aviation Organization (ICAO). The knot is a non- SI unit. The knot is used in meteorology, and in maritime and air navigation. A vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour. Definitions ;1 international knot = :1 nautical mile per hour (by definition), : (exactly), : (approximately), : (approximately), : (approximately) : (approximately). The length of the internationally agreed nautical mile is . The US adopted the international definition in 1954, having previously used the US nautical mile (). The UK adopted the international nautical mile definition in 1970, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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