Information about Jackstaff
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First Navy Jack being raised on a jackstaff
A jackstaff is a small vertical spar (pole) in the bow of a ship, on which a particular type of flag, known as a jack, is flown.
Sails, spars and rigging | |
|---|---|
| Sails | Course |
| Sail anatomy and materials | Clew |
| Spars | Boom |
| Rigging components | Backstay |
flag is a piece of woven cloth, often flown from a pole or mast, generally used symbolically for signalling or identification. The term flag is also used to refer to the graphic design employed by a flag, or to its depiction in another medium.
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sail is any type of surface intended to generate thrust by being placed in a wind — in essence a vertically-oriented wing. Sails are used in sailing.
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Use of sails
Sails are primarily used at sea, on sailing ships as a propulsion system...... Click the link for more information.
spar is a round pole of wood or metal used on a sailing ship. In modern usage it almost always refers to the mast, but historically the term was also used for booms, gaffs, yards, etc.
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Rigging (from Anglo-Saxon wrigan or wrihan, "to clothe") is, on sailboats and sailing ships, the collection of apparatuses through which the force of the wind is transferred to the ship in order to propel it forward.
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In sailing, a course sail is the principal sail on a mast.
This term is used predominantly on square rigged vessels, referring to the largest and lowest sail on each mast (mizzen-course, main-course and fore-course).
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This term is used predominantly on square rigged vessels, referring to the largest and lowest sail on each mast (mizzen-course, main-course and fore-course).
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In sailing the parts of a sail have common terminology. Most sails are now triangular; for such sails, there are six separate terms, one for each corner and edge.
In a triangular sail, the upper point is known as the head
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The corners
In a triangular sail, the upper point is known as the head
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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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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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