NationMaster - Encyclopedia: Boom (sailing)

In sailing, a boom is a spar (pole) usually made of aluminum or wood, is connected to the foot of the mainsail and allows the crew to control the angle of the sail to the wind. The boom attaches to the mast at a joint called the gooseneck. The gooseneck pivots allowing the boom to be easily adjusted by the main sheet. Four lines are attached to the boom: Wooden sailing boat Sailing is the skillful art of controlling the motion of a sailing ship or smaller boat, across a body of water using wind as the source of power. ... There are several meanings of the word boom: a sound such as a sonic boom - onomatopoeia the sound of an explosion. ... This article is about the convenience store. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ... A tree trunk as found at the Veluwe, The Netherlands Wood derives from woody plants, notably trees but also shrubs. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... A mainsail is the most important sail raised from the main (or only) mast of a sailing vessel. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... Categories: Move to Wiktionary | Stub ...

1. The outhaul runs along the boom and the back corner of the sail (the clew) aftward. Modern sails are cut so that the outhaul is also able to pull the clew downwards towards the boom. Hauling in on the outhaul increases foot tension in the main sail. This page is a candidate for speedy deletion. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ...

2. The main sheet is attached midway along the boom or at the stern end. In smaller boats such as dinghies it is used to control the angle of the sail to the wind on each point of sail. On larger boats this function is largely assumed by the traveller and the main sheet is used to adjust the twist of the sail to present the luff of the sail to the wind all of the way up the mast. Easing the main sheet increases twist and the twist is usually adjusted so that the aft end of the top baton in the main sail runs parallel to the boom. diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ...

3. The traveller is a track running from one side of the boat to the other upon which sits a car which is attached to the main sheet. Moving the car from side to side alters the angle of the boom to the centreline of the boat while minimising the effect on the twist of the sail. A mechanical traveller is a moving part of a machine, typically a ring that slides between different positions on a supporting rod when the machine goes through its operating cycle. ...

4. The boomvang, kicking strap or kicker is an intricate set of pulleys (and, on yachts, a hydraulic ram) running diagonally between the boom and the lower portion of the mast. The kicker pulls the boom downwards. When the boat is running away from the wind the main sheet will be fully eased and so the kicker becomes the primary means of controlling main sail twist. A boom vang is system of lines on a sailboat used to control the height of the boom and the shape of the sail. ...

The controls on the boom act in conjunction with the halyard and leech line to ensure that the main sail is trimmed most effectively. In sailing, a halyard is a line (rope) that is used to hoist (pull up) a sail or a yard to which a sail has been attached (bent on). ...

Various fairleads and cleats are attached by screws and rivets in wooden and aluminum spars respectively. Aluminum booms are lighter and stronger than their woooden counterpart and are used more often in competitive racing. They are usually associated with fiberglass boats. The wooden boom is found most often on older sailboats and handmade dinghies. Cleats are fittings on ships and boats that ropes are tied to; they are often shaped like horns, although other types exist. ... A rivetted buffer beam on a steam locomotive A rivet is a mechanical fastener consisting of a smooth cylindrical shaft with heads on either end. ...

Categories: ‪Sailboat anatomy‬ | ‪Sailing vessels and rigging‬ A sail is any type of surface intended to generate thrust by being placed in a wind â€”in essence a vertically-oriented wing. ... This article is about the convenience store. ... This article is about the rigging of ships, and is based on the detailed article in the 1911 Encyclopedia Britannica, now in the public domain. ... In sailing, a course sail is the principal sail on a mast. ... A driver is a kind of sail used on some sailboats. ... In sailing, an extra is a sail that is not part of the working sail plan. ... A genoa (pronounced like the city, or as jenny) is a type of large jib-sail used on bermuda rigged craft, commonly the single-masted sloop and twin-masted yawl, less frequently on a ketch. ... A gennaker is a downwind sail that can be described as a cross between a genoa and a spinnaker. ... A jib is a triangular staysail set ahead of the foremost mast of a sailing boat. ... A lateen (from Latin) is a triangular sail set on a long yard mounted at an angle on the mast, and running in a fore-and-aft direction. ... A mainsail is the most important sail raised from the main (or only) mast of a sailing vessel. ... Also known as a skysail or moonraker. ... A spanker is either of two kinds of sail. ... A spinnaker is a special type of sail that is designed specifically for sailing downwind (with the wind behind the boat). ... A staysail is a fore-and-aft rigged sail whose luff is affixed to a stay running forward (and most often but not always downwards) from a mast to the deck, the bowsprit or to another mast. ... USS Monongahela with a full set of studding sails set A studding sail or studsail is a sail used to increase the sail area of a square rigged vessel in light winds. ... A spanker is either of two kinds of sail. ... On a square rigged sailing vessel, a topgallant sail is the square-rigged sail or sails immediately above the topsail or topsails. ... A topsail is a sail set above another sail; on square-rigged vessels further sails may be set above topsails. ... A small fore-and-aft sail hoisted abaft the foremast and mainmast in a storm to keep a ships bow to the wind. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... The term plastics covers a range of synthetic or semi-synthetic organic condensation or polymerization products that can be molded or extruded into objects or films or fibers. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... Kevlar (poly-paraphenylene terephthalamide) is the DuPont Companyâ€™s brand name for a synthetic material constructed of para-aramid fibers that the company claims is five times stronger than the same weight of steel, while being lightweight, flexible and comfortable. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... diagram showing the names of the parts of a sail The lower edge of a triangular sail is called the foot of the sail, while the upper point is known as the head. ... Bowsprit of the Falls of Clyde, showing the dolphin striker, the use of chain for the bobstays, and three furled jibs. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... In sailing, a gaff is the upper spar used to control a fore-and-aft sail set aft of the mast, such as a mainsail. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... On sailing ships, the jury rig is a replacement mast and yards improvised in case of loss of the original mast. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... mizzen mast, mainmast and foremast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... The word truck is used in various different ways in different varieties of English. ... A spinnaker pole is a spar used in sailboats (both dinghys and yachts) to help support and control a variety of headsails, particularly the spinnaker. ... The fore royal yard on the Prince William. ... On a sailing vessel, a backstay is a piece of standing rigging which keeps a mast from falling forewards. ... In sailing, a block is a pulley or a number of pulleys enclosed in sheaves so as to be fixed to the end of a line or to a spar or surface. ... A boom vang is an item of rigging in a sail-powered vessel (usually small ones, but it is sometimes found on larger ones as well). ... The starboard main-brace and main-topsail-braces are clearly visible over the sea in this photo of the Prince Williams bridge and stern deck from her masthead. ... Clewlines and buntlines are lines used to handle the sails of a square rigged ship. ... This page is a candidate to be moved to Wiktionary. ... link titleA clevis pin is a type of fastener that will allow rotation of the connected parts about the axis of the pin. ... Clewlines and buntlines are lines used to handle the sails of a square rigged ship. ... This article is about the sailing term. ... The downhaul is a line (or rope) which is part of the rigging on a sailboat; it applies downward force on a spar or sail. ... On a sailing vessel, a forestay is a piece of standing rigging which keeps a mast from falling backwards. ... A gasket holding the main-royal on a modern square-rigged training ship. ... Categories: Move to Wiktionary | Stub ... A guy is a term for a line (rope) attached to and intended to control the end of a spar on a sailboat. ... In sailing, a halyard is a line (rope) that is used to hoist (pull up) a sail or a yard to which a sail has been attached (bent on). ... This page is a candidate for speedy deletion. ... Anatomy In anatomy, the throat is the part of the neck anterior to the vertebral column. ... One of the most dangerous things that can happen on a sailing boat, apart from falling overboard, is for someone to get caught up in the uncontrolled gybe of a sail. ... Ratlines, pronounced rattlins, are lengths of thin line tied between the shrouds of a sailing ship to form a ladder. ... Running rigging is the term for the rigging of a sailing vessel that is used for raising, lowering and controlling the sails - as opposed to the standing rigging, which supports the mast and other spars. ... A shackle is a U-shaped piece of metal secured with a pin or bolt across the opening, or a hinged metal loop secured with a quick-release locking pin mechanism. ... On a sailing boat, the standing rigging is that collection of lines which are fixed. ... In sailing, a sheet is a line attached to the clew of a sail, and is the main control used in trimming the sail. ... On a sailboat, the shrouds are pieces of standing rigging which hold the mast up from side to side. ... On a sailing ship, stay mouse refers to the bulge in a part of the standing rigging called a stay. ... Stays are the heavy ropes on sailing vessels that run from the masts to the hull. ... Anatomy In anatomy, the throat is the part of the neck anterior to the vertebral column. ... An acrobat below a balloon Trapeze artists, in lithograph by Calvert Litho. ...