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Portsmouth Yardstick
The Portsmouth Yardstick (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing. The handicap is applied to the time taken to sail any course, and the handicaps can be used with widely differing types of sailboats. Portsmouth Numbers are updated with data from race results, normally annually. The various schemes are not directly linked, and ratings for the same class can and often do vary in the different schemes. The most prominent Portsmouth Yardstick systems are probably those administered in the United States by the Portsmouth Numbers Committee, in the United Kingdom by the Royal Yachting Association ( RYA) and in Australia by Victoria Yachting. History The original UK Portsmouth Yardstick was developed by Stanley Milledge, who was in charge of handicapping racing at the '' Langstone Sailing Club'' in 1947 using the ''Island One'' design as the scratch boat (having a value 100). In 195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empirical
Empirical evidence for a proposition is evidence, i.e. what supports or counters this proposition, that is constituted by or accessible to sense experience or experimental procedure. Empirical evidence is of central importance to the sciences and plays a role in various other fields, like epistemology and law. There is no general agreement on how the terms ''evidence'' and ''empirical'' are to be defined. Often different fields work with quite different conceptions. In epistemology, evidence is what justifies beliefs or what determines whether holding a certain belief is rational. This is only possible if the evidence is possessed by the person, which has prompted various epistemologists to conceive evidence as private mental states like experiences or other beliefs. In philosophy of science, on the other hand, evidence is understood as that which ''Scientific method#Confirmation, confirms'' or ''disconfirms'' Hypothesis#Scientific hypothesis, scientific hypotheses and arbitrates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinghy
A dinghy is a type of small boat, often carried or towed by a larger vessel for use as a tender. Utility dinghies are usually rowboats or have an outboard motor. Some are rigged for sailing but they differ from sailing dinghies, which are designed first and foremost for sailing. A dinghy's main use is for transfers from larger boats, especially when the larger boat cannot dock at a suitably-sized port or marina. The term "dinghy towing" sometimes is used to refer to the practice of towing a car or other smaller vehicle behind a motorhome, by analogy to towing a dinghy behind a yacht. Etymology The term is a loanword from the Bengali ', Urdu ', and Hindi '. Types Dinghies usually range in length from about . Larger auxiliary vessels are generally called tenders, pinnaces or lifeboats. Folding and take-down multi-piece (nesting) dinghies are used where space is limited. Some newer dinghies have much greater buoyancy, giving them more carrying capacity than older ... [...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 boat requir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formula 18
The Formula 18 class, abbreviated F18, is a non-foiling, restricted development, formula-design sport catamaran class. It was started in the early 1990s and quickly grew getting class recognition by World Sailing, with large racing fleets all over the globe. Design goals The overall objective of the class is to offer popular, safe, exciting and fair racing in 18-foot catamarans. The F18 class is a "box rule" class, which means that any boat that adheres to the limited set of general design specifications may participate in all F18 races. This has led to a score of homebuilders and professional builders to design their own F18 boats and race them in this class. However, it is the mainstream production F18 designs that have dominated the top of the class. The presence of multiple boat builders and sailmakers in the class stimulates innovation and helps to limit costs to sailors. The F18 box rule allows limited development, striking a balance between the class remaining close to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formula 16
The Formula 16 (F16) sport catamaran is an ISAF recognised 5 m long beach catamaran with an asymmetric spinnaker setup. It is actively sailed in two modes: doublehanded with a jib (''2-up''), and singlehanded without a jib (''1-up''). Its class rules setup is very similar to those of the Formula 18 The Formula 18 class, abbreviated F18, is a non-foiling, restricted development, formula-design sport catamaran class. It was started in the early 1990s and quickly grew getting class recognition by World Sailing, with large racing fleets all ov ... class of beach catamarans. In effect any boat that adheres to a certain limited set of general design specifications may participate in all the official class races. The two classes, F18 and F16, govern the racing of their own class compliant boats. The F16 class was founded in the spring of 2001, after it had become clear by the overwhelming success of the F18 class that formula classes would be the future in sport/beach catamara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hobie 18
The Hobie 18 is an American catamaran sailboat that was designed by Hobie Alter and Phil Edwards as a one design racer and first built in 1976. Production The design was built by Hobie Cat in the United States, starting in 1976, but it is now out of production. Design The Hobie 18 is a sailing dinghy, built predominantly of fiberglass. It has a fractional sloop rig, The twin hulls have raked stems, near-plumb transoms, twin transom-hung rudders controlled by a single tiller and twin retractable daggerboards. It displaces . The design has a roller furling jib, internally-mounted halyards and adjustable mast spreaders to allow mast adjustments fore-and-aft and abeam while sailing. The boat has a draft of with a daggerboard extended and with both retracted, allowing operation in shallow water, beaching or ground transportation on a trailer. The Hobie 18 Magnum version has hiking wing racks that give a beam of to allow trapezing crew members more leverage in keepin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hobie 16
The ISAF International Class Hobie 16 (H16) is a popular catamaran manufactured by the Hobie Cat Company for racing and day sailing. The craft was the driving force behind the popularization of beachcats and was recently inducted into the Sailing Hall Of Fame. Introduced in 1971, the Hobie 16 is the second largest boat fleet in existence with over 135,000 boats built to date. The boat is distinctly recognized for its asymmetric "banana" shaped hulls, designed to work without the need for daggerboards so the catamaran could be run up the beach without worry. The rudders kick up automatically by lifting up on the tiller crossbar. Design The Hobie 16 is manufactured in France by the Hobie Cat company, and by the Hobie Cat of America company in the United States. The Hobie 16 normally carries two sails, the mainsail and the jib. There is a kit to allow an H16 to fly a spinnaker but this is only class legal for youth racing. Each hull has two pylons (the forward ones are ven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SL 16
The SL 16 (also known as Sirena SL16) is a 4.80 m long fiberglass sailing catamaran. It is designed to be sailed by two people. The SL 16 was selected by ISAF in 2005 for the Youth Sailing World Championships. It has a D-PN of 73.0 History The SL 16 was designed in 2003 by Yves Loday. The boat is based on the KL 15.5 from 1993, but has bigger and more modern rig. * Units build: 800 total, 200 in 2002-2007, 50 in 2007ISAF SL 16 2008 class report See also * List of multihulls Types * catamaran = two symmetric hulls * proa = two asymmetric hulls, reverse-shunting (interchangeable bow/ stern) * trimaran = three hulls * quadrimaran = four hulls * pentamaran = five hulls Pre-modern Austronesian * ʻalia * Amatasi ... References External linkssl16.coSLICA (SL International Class association)ISAF SL16 Microsite {{Sailing dinghies and skiffs Classes of World Sailing Catamarans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISAF Youth Sailing World Championships
The ISAF Youth Sailing World Championships was first held in Sweden in 1971 and it has been held every year since. It is one of the key events of the federation to help promote top-level youth participation. Editions Equipment Gender Guide O (Open) (2) (Open) in two age bands B (Boys) G (Girls) Mx (Mixed) Male and Female Pair BM (Boys/Mixed) Male/Male Pair or a Male/Female Pair Results 29er Open Boys Girls 420 Open Boys Boys & Mixed Girls 470 Byte Europe Fireball Flipper Formula Kite Boys Girls Hobie 16 IQFoil Boys Girls Laser Laser Radial Boys Girls Laser 2 Mistral Nacra 15 RS:X Boys Girls SL 16 Techno 293 Boys Girls References External links * {{World championships in sailing World Sailing Youth Youth is the time of life when one is young. The word, youth, can also mean the time between childhood and adulthood ( maturity), but it can also refer to one's peak, in terms of health or the period of life kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing At The 2012 Summer Paralympics
Sailing at the 2012 Summer Paralympics in London was held from August in Weymouth and Portland. XYZ competitors representing XYZ countries will compete in three keelboat classes - the 2.4mR, the SKUD 18, and the Sonar, took part in sailing in the 2008 Summer Paralympics. Competitors had a wide range of physical disabilities including degenerative nerve disease, blindness, missing limbs and polio. Boats were prepared and launched from the docks of the Weymouth and Portland Sailing Academy. Events Three sailing events were held. All were mixed events, meaning that men and women could compete together. International disability classification in sailing is done by a committee, which gives each competitor a number score with lower numbers corresponding to more severe disability. Sailors were classified under the IFDS Functional Classification System. To take part in Paralympic sailing, an athlete must have a score of 7 or less. The 2-person keelboat (SKUD18) was the only Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing At The 2012 Summer Olympics
Sailing at the 2012 Summer Olympics in London was held 29 July – 11 August 2012 at Weymouth and Portland National Sailing Academy in Weymouth. The 2012 sailing program consisted of a total of ten events (eight classes). Eleven fleet races were scheduled off the coast at Weymouth Bay for each event, except for the 49er and the Elliott 6m classes. For the 49er class, a total of 16 races were scheduled. Of the 11 (16) races, 10 (15) were scheduled as opening races and the last one as medal race. For the Elliott 6m a series of match races was scheduled. The sailing was done on different types of courses. Venue According to the IOC statutes the contests in all sport disciplines must be held either in, or as close as possible to the city which the IOC has chosen. Among others, an exception is made for the Olympic sailing events, which customarily must be staged on the open sea. On account of this principle, Weymouth and Portland was selected for the honor to carry out the Oly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A-Scow
The A Scow is an American scow-hulled sailing dinghy that was designed by John O. Johnson as a racer and first built in 1901. The A Scow design was developed into the V38, by Victory by Design, LLC in 2005. Production The design was initially built by Johnson Boat Works in White Bear Lake, Minnesota United States, but that company closed in 1998 and production passed to Melges Performance Sailboats, who continue to build it. Design The A Scow traces its origins back to a Johnson-designed prototype in 1896. Over time the class has changed and evolved into essentially a one design class today. At length overall, the design is the largest scow raced today and is one of the largest dinghies produced. The A Scow is a racing sailboat, with the early versions built from wood and the more recent ones built predominantly of fiberglass. It has a fractional sloop with a masthead spinnaker. The hull is a scow design with a raised counter, vertical transom; dual spade-type rudders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
