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Bunt (sail)
The bunt of a sail is the middle part of it, which is purposely formed into a kind of curved bag, or cavity, so that the sail might receive more wind. It is chiefly used in topsails, for courses are for the most part cut square, or at least with a small allowance, for bunt or compass. Sailors would say, "the bunt holds much leeward wind", meaning that the bunt hangs too much to leeward. The buntlines are small lines fastened to the bottom of the sails, in the middle part of the bolt rope, to the cringle; and so are passed through a small block, seized to the yard. Their use is to trice up the bunt of the sail, to better furl Furl (from File Uniform Resource Locators) was a free social bookmarking website that allowed members to store searchable copies of webpages and share them with others. Every member received 5 gigabytes of storage space. The site was founded by ... it up. {{1728, title=Bunt Sailboat components Sailing rigs and rigging ... [...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] |
Topsail
A topsail ("tops'l") is a sail set above another sail; on square-rigged vessels further sails may be set above topsails. Square rig On a square rigged vessel, a topsail is a typically trapezoidal shaped sail rigged above the course sail and below the topgallant sail where carried ,on any mast (i.e., a fully rigged ship would have a foremast topsail, a mainmast topsail, and a mizzen topsail). A full rigged ship will have either single or double (i.e, "split" upper and lower) topsails on all masts, the single or lower topsail being the second sail above the deck and the upper topsail where so rigged being the third. Although described as a "square" sail, a topsail on a full rigged ship refers not to the sail's shape but to it and its yard being rigged square (i.e., at a right angle) to the vessel's keel rather than in line with it (in which case it would be called a fore-and-aft rig or a fore-and-aft rigged sail) ; a square rigged topsail is nearly always trapezoidal in shape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Course (sail)
In sailing, a course is a type of square sail. It is the sail set on the lowest yard The yard (symbol: yd) is an English unit of length in both the British imperial and US customary systems of measurement equalling 3 feet or 36 inches. Since 1959 it has been by international agreement standardized as exactly 0.914 ... on a mast. The courses are given a name derived from the mast on which they are set, so the course on the foremast may be called the fore-course or the foresail; similarly main-course or mainsail for that carried on the mainmast. On the mizzen, a course is not usually carried. If it is, it is called the crossjack (or cro'jack) or mizzen sail. The lower yard on the mizzen takes the same name (crossjack). When there is no sail set from this yard it is still needed to sheet home the topsail. In that case, a clue to the arrangement is the absence of footropes. References {{Sail Types Sailing rigs and rigging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windward And Leeward
Windward () and leeward () are terms used to describe the direction of the wind. Windward is ''upwind'' from the point of reference, i.e. towards the direction from which the wind is coming; leeward is ''downwind'' from the point of reference, i.e. along the direction towards which the wind is going. The side of a ship that is towards the leeward is its "lee side". If the vessel is heeling under the pressure of crosswind, the lee side will be the "lower side". During the Age of Sail, the term ''weather'' was used as a synonym for ''windward'' in some contexts, as in the ''weather gage''. Because it captures rain, the windward side of a mountain tends to be wet compared to the leeward it blocks. Origin The term "lee" comes from the middle-low German word // meaning "where the sea is not exposed to the wind" or "mild". The terms Luv and Lee (engl. Windward and Leeward) have been in use since the 17th century. Usage Windward and leeward directions (and the points ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clewlines And Buntlines
Clewlines and buntlines are lines used to handle the sails of a square rigged ship. Although the common perception of a traditionally rigged ship is that the sails are handled from "up in the rigging", the majority of the work is actually carried out from the deck. In particular, when sailors go aloft to stow the square sails by bundling them up and tying them to the yard (with gaskets) they don't have to pull the whole weight of the sail up towards them. That work has already been carried out from the deck using the clewlines and the buntlines. As the name suggests, clewlines are attached to the outer corners or clews of the sail. They lift more weight than the buntlines, and also have to pull against the sheets - although these will have been released there is still a certain amount of friction produced by the blocks and fairleads that they run through. For this reason the clewlines are usually fitted with blocks to increase the mechanical advantage. The clewlines are colour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolt Rope
A bolt rope (Variants: "bolt-rope" and "boltrope", French: ''ralingue'', Spanish: ''relinga'', Old Norse: *''rár-línk'', comprising ''rár'' genitive of ''rá'' "rope" and ''línk'' "edge of a sail "), is the rope that is sewn at the edges of the sail to reinforce them, or to fix the sail into a groove in the boom or in the mast. Fore-and-aft sails often have bolt ropes on the leading edge (luff) where they attach to the mast and the bottom edge (foot) where they attach to the boom, which provide the terms, "luff bolt rope" and "foot bolt rope". They also occur on the edges of sails suspended from a spar, such as for gaff, square and lateen rigs. Attachment and characteristics Bolt ropes were described as early as 1847, when Robert Kipping addressed "bolt-rope" attachment for a variety of sails, using sewing techniques appropriate to each, in his book, ''The Elements of Sailmaking''. He addressed the tradeoff between stiffness and flexibility to provide reinforcement without ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cringle
A cringle is an eye through which to pass a rope. In nautical settings, the word refers to a small hole anywhere along the edge or in the corner of a sail, rimmed with stranded cordage and worked into the boltrope. Typically it encloses a metal grommet Curtain grommets, used among others in shower curtains. A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb. Grommets ar ... for reinforcement and to reduce wear. In this context, ''cringle'' and ''grommet'' coincide enough that the two are sometimes used interchangeably. References Sailboat components {{water-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Block (sailing)
In sailing, a block is a single or multiple pulley. One or a number of ''sheaves'' are enclosed in an assembly between ''cheeks'' or ''chocks''. In use, a block is fixed to the end of a line, to a spar (sailing), spar, or to a surface. A line (rope) is ''reeved'' through the sheaves, and maybe through one or more matching blocks at some far end, to make up a Block and tackle, tackle. The ''purchase'' of a tackle refers to its mechanical advantage. In general the more sheaves in the blocks that make up a tackle, the higher its mechanical advantage. The matter is slightly complicated by the fact that every tackle has a ''working end'' where the final run of rope leaves the last sheave. More mechanical advantage can be obtained if this end is attached to the moving load rather than the fixed end of the tackle. There are various types of blocks that are used in sailing. Some blocks are used to increase mechanical advantage and others are used simply to change the direction of a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seizing
Seizings are a class of stopping knots used to semi-permanently bind together two ropes, two parts of the same rope, or rope and another object. Akin to lashings, they use string or small-stuff to produce friction and leverage to immobilize larger ropes. Seizings are not recommended for heavy loads for critical use as strain reduces the diameter of the main rope and can permit slippage even with proper construction. According to ''The Ashley Book of Knots'', "A ''seizing'' holds several objects together."Ashley (1944), p.546. The other type of stopping knots are whipping knots. See also * Ropework Ropework or marlinespike seamanship are traditional umbrella terms for a skillset spanning the use, maintenance, and repair of rope. Included are tying knots, splicing, making lashings, whippings, and proper use and storage of rope. While th ... References Knots {{Knot-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yard (sailing)
A yard is a spar on a mast from which sails are set. It may be constructed of timber or steel or from more modern materials such as aluminium or carbon fibre. Although some types of fore and aft rigs have yards, the term is usually used to describe the horizontal spars used on square rigged sails. In addition, for some decades after square sails were generally dispensed with, some yards were retained for deploying wireless (radio) aerials and signal flags. Parts of the yard ; Bunt : The short section of the yard between the ''slings'' that attach it to the mast. ; Quarters : The port and starboard quarters form the bulk of the yard, extending from the slings to the fittings for the lifts and braces. ; Yardarms : The outermost tips of the yard: outboard from the attachments for the lifts. Note that these terms refer to stretches of the same spar, not to separate component parts. Controlling the yard The yard can rotate around the mast to allow the direction of the vess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furl (sailing)
Furling refers to stowing or dousing a boat's sail by flaking (folding), packing (like stuffing a spinnaker into a bag), or stowing it in part or whole using roller furling. Furling is not synonymous with ''dousing'' (dropping) or reefing Reefing reduces the area of a sail, usually by folding or rolling one edge of the canvas in on itself and attaching the unused portion to a spar or a stay, as the primary measure to preserve a sailing vessel's stability in strong winds. Restoring ... (reducing the exposed area of) a sail, but modern technologies such as roller furling are altering the term's traditional use. Sailing rigs and rigging {{Water-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailboat Components
A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture. Types Although sailboat terminology has varied across history, many terms have specific meanings in the context of modern yachting. A great number of sailboat-types may be distinguished by size, hull configuration, keel type, purpose, number and configuration of masts, and sail plan. Popular monohull designs include: Cutter The cutter is similar to a sloop with a single mast and mainsail, but generally carries the mast further aft to allow for a jib and staysail to be attached to the head stay and inner forestay, respectively. Once a common racing configuration, today it gives versatility to cruising boats, especially in allowing a small staysail to be flown from the inner stay in high winds. Catboat A catboat has a single mast mounted far forward and does not carr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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