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Laser Vortex
The Laser Vortex is a high performance sailing dinghy designed by Jo Richards and awarded the "Sailboat of the Year" title on its introduction in 2000. It is a tunnel hulled single hander that has a trapeze and an optional asymmetrical spinnaker. It is manufactured by White Formula UK Ltd under licence from a consortium headed up by Jonathan Carter. Jo Richard remains the owner of the design. Laser Performance are no longer involved with the Vortex. In 2013 the decision was made to drop 'Laser' from the name, the boat is now known only as the Vortex. The development of the Asymmetric 'kit' by Association Chairman and keen Vortex enthusiast Keith Escritt has brought new life to the class, with over 100 boats now flying the asymmetric option. In handicap racing the Vortex sails off a 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 ... [...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] |
Tunnel Hull
A tunnel hull is a type of boat hull that uses two typically planing hulls with a solid centre that traps air. This entrapment then creates aerodynamic lift in addition to the planing (hydrodynamic) lift from the hulls. Many times this is attributed to ground effect. Theoretical research and full-scale testing of tunnel hulls has demonstrated the dramatic contributions of 'close-proximity ground effect' on enhanced aerodynamic lift/drag in operation of performance tunnel hull designs."Secrets of Tunnel Boat Design", JDRussell,P.Eng. () Tunnel hulls are distinguishable from other catamarans by the typical close hull spacing and solid deck in between the hulls. Formula 1 powerboats have a tunnel hull catamaran design allowing them to go faster. Tunnel hulls are a common design in offshore powerboat racing. References See also * Cathedral hull * Hickman sea sled * Boston Whaler * Supercavitation propeller * Offshore Powerboat Racing Offshore powerboat racing is a type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single Handed Sailing
The sport and practice of single-handed sailing or solo sailing is sailing with only one crewmember (i.e., only one person on board the vessel). The term usually refers to ocean The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the wo ... and long-distance sailing and is used in yacht racing, competitive sailing and among Cruising (maritime), Cruisers. Terminology In sailing, a hand is a member of a ship's crew. "Single-handed" therefore means with a crew of one, i.e., only one person on the vessel. The term "single-handed" is also used more generally in English to mean "done without help from others" or, literally, "with one hand". In the sailing community, the term "crewed" (or sometimes "fully-crewed") is used to mean sailing with a crew of more than one, in order to distinguish even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trapeze
A trapeze is a short horizontal bar hung by ropes or metal straps from a ceiling support. It is an aerial apparatus commonly found in circus performances. Trapeze acts may be static, spinning (rigged from a single point), swinging or flying, and may be performed solo, double, triple or as a group act. The name of the apparatus reflects the trapezoid shape made by the horizontal bar, ropes and ceiling support. History The art of trapeze performance is reported to have been developed by Jules Léotard, a young French acrobat and aerialist, in Toulouse in the mid-1800s. He is said to have used his father's swimming pool to practice. However, the name "trapeze" can be found in books dating as far back as twenty years earlier, before Léotard was born. One such example is George Roland’s “An Introductory Course of Modern Gymnastic Exercises”, published in 1832. Roland proposes the idea that the trapeze might owe its origin to Colonel Amoros, but ultimately deems the question o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asymmetrical Spinnaker
An asymmetrical spinnaker is a sail used when sailing downwind. Also known as an "asym", "aspin", or "A-sail" it can be described as a cross between a genoa jib and a spinnaker. It is asymmetric like a genoa, but, the asymmetrical spinnaker is not attached to the forestay over the full length of its luff, being rigged like a spinnaker. The asymmetrical spinnaker has a larger camber than a genoa, making it optimal for generating lift at larger angles of attack, but the camber is significantly less than that of a spinnaker. The asymmetrical spinnaker is a specialty sail used on racing boats, bridging the performance gap between a genoa, which develops maximum driving force when the apparent wind angle is between 35 and 60 degrees, and a spinnaker, which has maximum power when the apparent wind is between 100 and 140 degrees. Due to its geometry, the sail is less prone to collapsing than a spinnaker and does not require the use of spinnaker pole. The sail can benefit greatly and be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Formula UK Ltd
White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on television and computer screens is created by a mixture of red, blue, and green light. The color white can be given with white pigments, especially titanium dioxide. In ancient Egypt and ancient Rome, priestesses wore white as a symbol of purity, and Romans wore white togas as symbols of citizenship. In the Middle Ages and Renaissance a white unicorn symbolized chastity, and a white lamb sacrifice and purity. It was the royal color of the kings of France, and of the monarchist movement that opposed the Bolsheviks during the Russian Civil War (1917–1922). Greek and Roman temples were faced with white marble, and beginning in the 18th century, with the advent of neoclassical architecture, white became the most common color of n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing (sport)
The sport of sailing involves a variety of competitive sailing formats that are sanctioned through various sailing federations and yacht clubs. Racing disciplines include matches within a fleet of sailing craft, between a pair thereof or among teams. Additionally, there are specialized competitions that include setting speed records. Racing formats include both closed courses and point-to-point contests; they may be in sheltered waters, coast-wise or on the open ocean. Most competitions are held within defined classes or ratings that either entail one type of sailing craft to ensure a contest primarily of skill or rating the sailing craft to create classifications or handicaps. On water, a sailing competition among multiple vessels is a regatta, which usually consists of multiple individual races, where the boat crew that performs best in over the series of races is the overall winner. There is a broad variety of kinds of races and sailboats used for racing from large yacht to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Dinghies
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 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000s Sailboat Type Designs
S, or s, is the nineteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''ess'' (pronounced ), plural ''esses''. History Origin Northwest Semitic šîn represented a voiceless postalveolar fricative (as in 'ip'). It originated most likely as a pictogram of a tooth () and represented the phoneme via the acrophonic principle. Ancient Greek did not have a phoneme, so the derived Greek letter sigma () came to represent the voiceless alveolar sibilant . While the letter shape Σ continues Phoenician ''šîn'', its name ''sigma'' is taken from the letter ''samekh'', while the shape and position of ''samekh'' but name of ''šîn'' is continued in the '' xi''. Within Greek, the name of ''sigma'' was influenced by its association with the Greek word (earlier ) "to hiss". The original name of the letter "sigma" may have been ''san'', but due to the complica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
