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Clipper Round The World Race
The Clipper Round the World Yacht Race is a biennial sailing race that takes paying amateur crews on one or more legs of a circumnavigation of the globe in 11 specially designed identical yachts owned by Clipper Ventures. Professional skippers and additional qualified persons (AQPs) lead each teams on the 10-month journey. All participants must complete a four-week training course before starting the race. The race was conceived in 1995 by Sir Robin Knox-Johnston and is run by Clipper Ventures plc. The race has been held every two years since 1996, although in 2004 there was not a race and biennial racing resumed in 2005. In contrast to the now-defunct Global Challenge, the Clipper Race route follows the prevailing currents and winds and uses lighter, faster boats. The current fleet of 11 yachts are Clipper 70 yachts that were first used in the 2013–14 race. Previous race fleets were composed of eight Clipper 60s and ten Clipper 68s. Initial races did not feature corporate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackadder (clipper)
''Blackadder'' was a clipper, a sister ship to ''Hallowe'en'', built in 1870 by Maudslay, Sons & Field at Greenwich for Jock Willis & Sons. ''Blackadder'' was dismasted on her maiden voyage due to failures in the mast fittings and rigging. She "was able to reach the Cape under jury rig 63 days out." John Willis took legal action against the builders which dragged on to such an extent that her sister ship, ''Hallowe'en'', was not handed over to Willis until nearly 18 months after her launch. After John Willis died in 1900, ''Blackadder'' was bought by J. Aalborg of Kragerø in Norway. On 5 November 1905 she was wrecked whilst on passage from Barry to Bahia loaded with coal. History Jock Willis & Sons operated a shipping line which specialised in fast sailing cargo ships, including tea clippers trading tea from China. These were 'state of the art' ships designed to take part in what had become a race to be the fastest ship home with the new season tea. The opening of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rigging
Rigging comprises the system of ropes, cables and chains, which support and control a sailing ship or sail boat's masts and sails. ''Standing rigging'' is the fixed rigging that supports masts including shrouds and stays. ''Running rigging'' is rigging which adjusts the position of the vessel's sails and spars including halyards, braces, sheets and vangs. Etymology According to the Encyclopædia Britannica Eleventh Edition "rigging" derives from Anglo-Saxon ''wrigan'' or ''wringing'', "to clothe". The same source points out that "rigging" a sailing vessel refers to putting all the components in place to allow it to function, including the masts, spars, sails and the rigging. History Theophrastus in his '' History of Plants'' ( 300 BCE) states that the rigging on King Antigonus' fleet was made from papyrus reed. Types of rigging Rigging is divided into two classes, ''standing'', which supports the mast (and bowsprit), and ''running'', which controls the orienta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camper And Nicholsons
Camper and Nicholson is a yacht design and manufacturing company based in Gosport, England, for over two hundred years, constructing many significant vessels, such as Gipsy Moth IV and Prince Philip, Duke of Edinburgh, Prince Philip's yacht Bloodhound (yacht), Bloodhound. Its customers included Thomas Sopwith, William Kissam Vanderbilt II and George Spencer-Churchill, 6th Duke of Marlborough. Its yachts competed in America's Cup, The America's Cup, The Fastnet Race, the Olympic Games, Olympics, the Ocean Race (1973–1974 Whitbread Round the World Race, Whitbread Round the World Race) and many other yacht races. It also built a number of small warships (for the British Admiralty as well as overseas buyers), notably during the two World Wars, and some as late as the 1950s. History Origin In 1782 Francis Calense Amos, who had trained as a shipwright in London, founded a shipyard in Gosport, leasing the land from the Royal Naval Dockyard. Initially he built and repaired small boats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IRC (Sailing)
International Rating Certificate (IRC) is a system of handicapping sailboats and yachts for the purpose of racing. It is managed by the Royal Ocean Racing Club (RORC) in the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ... through their dedicated Rating Office, and the Union Nationale pour la Course au Large (UNCL) in France. The IRC rule is not published, meaning the only bodies capable of calculating an IRC rating are the RORC Rating Office and UNCL Centre de Calcul in Paris (they are joint owners of the rule). This prevents designers from attempting to design 'to the rule'. The earlier IOR was published, and often amended, resulting in widespread criticism for several reasons. Firstly, as the rule effectively dictated the nature of boat designs, amendments to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterline Length
A vessel's length at the waterline (abbreviated to L.W.L) 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 is measured from a default load condition. Measurement 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 draft. Greater beam and draft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Overall
Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth (for example, £2.50 per metre LOA). LOA is usually measured on the hull alone. For sailing ships, this may ''exclude'' the bowsprit and other fittings added to the hull. This is how some racing boats and tall ships use the term LOA. However, other sources may include bowsprits in LOA. Confusingly, LOA has different meanings. "Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship. LOD Often used to distinguish between the length of a vessel including projections (e.g. bow sprits, etc.) from the length of the hull itself, the Length on Deck or LOD is often reported. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p. 5. This is accomplished by means of its "draft marks". A merchant vessel has t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monohull
right A monohull is a type of boat having only one hull, unlike multihulled boats which can have two or more individual hulls connected to one another. Fundamental concept Among the earliest hulls were simple logs, but these were generally unstable and tended to roll over easily. Hollowing out the logs into a dugout canoe doesn't help much unless the hollow section penetrates below the log's center of buoyancy, then a load carried low in the cavity actually stabilizes the craft. Adding weight or ballast to the bottom of the hull or as low as possible within the hull adds stability. Naval architects place the center of gravity substantially below the center of buoyancy; in most cases this can only be achieved by adding weight or ballast. The use of stones and other weights as ballast can be traced back to the Romans, Phoenicians and Vikings. Modern ships carry tons of ballast in order to maintain their stability; even heavily laden cargo ships use ballast to optimize the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (watercraft)
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or Mast (sailing), mast. The line where the hull meets the water surface is called the waterline. General features There is a wide variety of hull types that are chosen for suitability for different usages, the hull shape being dependent upon the needs of the design. Shapes range from a nearly perfect box, in the case of scow barges, to a needle-sharp surface of revolution in the case of a racing multihull sailboat. The shape is chosen to strike a balance between cost, hydrostatic considerations (accommodation, load carrying, and stability), hydrodynamics (speed, power requirements, and motion and behavior in a seaway) and special considerations for the ship's role, such as the rounded bow of an icebreaker or the flat bot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
