Information about Wishbone Boom
The wishbone boom on sailing craft is most commonly seen on windsurfing boards (sailboards).
The wishbone boom on larger sailing craft is a double-sided boom set at an angle to the mast and typically supported by line stays from the leading edge of the mast to each side of the boom. The sail's foot (outhaul) and luff (vang) tension are adjusted simultaneously by the use of one line, called a snotter or a choker.
The wishbone tensions the sail at an angle, pulling the sail both back and down. This trims the sail more efficiently than the forces applied to a sail with a conventional boom, with the outhaul and vang. The wishbone is also more effective at bending the carbon-fibre mast. The only way in which a conventional mast could be similarly bent is with the use of running backstays, which are usually only seen on pure racing boats. The disadvantages of conventional running backstays are numerous. They must be constantly trimmed by an experienced sailor, and if adjusted incorrectly, could cause catastrophic mast failure.
The wishbone boom additionally is an attachment point for lazy jack lines to catch the sail when it is dropped for furling or reefing.
The wishbone boom on larger sailing craft is a double-sided boom set at an angle to the mast and typically supported by line stays from the leading edge of the mast to each side of the boom. The sail's foot (outhaul) and luff (vang) tension are adjusted simultaneously by the use of one line, called a snotter or a choker.
The wishbone tensions the sail at an angle, pulling the sail both back and down. This trims the sail more efficiently than the forces applied to a sail with a conventional boom, with the outhaul and vang. The wishbone is also more effective at bending the carbon-fibre mast. The only way in which a conventional mast could be similarly bent is with the use of running backstays, which are usually only seen on pure racing boats. The disadvantages of conventional running backstays are numerous. They must be constantly trimmed by an experienced sailor, and if adjusted incorrectly, could cause catastrophic mast failure.
The wishbone boom additionally is an attachment point for lazy jack lines to catch the sail when it is dropped for furling or reefing.
Sailing is the art of controlling a sailing vessel. By adjusting the rigging, rudder and dagger or centre board, a sailor manages the force of the wind on the sails (main and/or jib) in order to change the direction and speed of a boat.
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Windsurfing is a surface water sport using a windsurf board, also commonly called a sailboard, usually two to five meters long and powered by a single sail. The rig is connected to the board by a free-rotating flexible joint called the Universal Joint (U-Joint).
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In sailing, a boom is a spar (pole), along the foot (bottom) of a fore and aft rigged sail, that greatly improves control of the angle and shape of the sail. The primary action of the boom is to keep the foot of the sail flatter when the sail angle is away from the centerline of
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mast of a sailing ship is a tall vertical pole which supports the sails. Larger ships have several masts, with the size and configuration depending on the style of ship.
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Stays are the heavy ropes, wires, or rods on sailing vessels that run from the masts to the hull, usually fore-and-aft along the centerline of the vessel. The stay that runs aft is called backstay and the stay that runs forward is called forestay or just stay.
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An outhaul is a line which is part of the running rigging of a sailboat, which is used to extend a sail, and control the shape of the curve of the foot of the sail. It runs from the clew (the back corner of the sail) to the end of the boom.
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boom vang (US) or kicking strap (UK) is a line or piston system on a sailboat used to exert downward force on the boom and thus control the shape of the sail. An older term is "martingale".
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A snotter is a rope or tackle used in sailing to tension the sprit on a spritsail, or a sprit boom on a sprit-boomed sail. It is also used in a junk rig.
There are a great many variations on the snotter arrangement, and some more fastidious authors have referred to it as a
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There are a great many variations on the snotter arrangement, and some more fastidious authors have referred to it as a
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On a sailing vessel, a backstay is a piece of standing rigging which runs from the mast to the transom of the boat, counteracting the forestay and jib. The backstay is an important sail trim control and has a direct effect on the shape of the mainsail and the headsail.
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Lazy jack (or lazyjack) is the name given to part of the rigging on sailing boat (generally a modern Bermuda rigged yacht). The purpose of lazy jacks is to ease sail handling, particularly for short-handed crews.
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Furling may refer to:
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- Furling (Stargate), characters in the series Stargate SG-1
- Furl (sailing), to gather a sail
- Furling (aerodynamics), to manipulating an airfoil
- The Furlings, characters in the 1993 film Once Upon a Forest
See also
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Reefing is a sailing manoeuvre intended to reduce the area of a sail on a sailboat or sailing ship, which can improve the ship's stability and reduce the risk of capsizing, broaching, or damaging sails or boat hardware in a strong wind.
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