A staysail ("stays'l") is a
fore-and-aft rig
A fore-and-aft rig is a sailing ship rig with sails set mainly in the median plane of the keel, rather than perpendicular to it, as on a square-rigged vessel.
Description
Fore-and-aft rigged sails include staysails, Bermuda rigged sails, g ...
ged
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 b ...
whose
luff can be affixed to a
stay
Stay may refer to:
Places
* Stay, Kentucky, an unincorporated community in the US
Law
* Stay of execution, a ruling to temporarily suspend the enforcement of a court judgment
* Stay of proceedings, a ruling halting further legal process in a tr ...
running forward (and most often but not always downwards) from a
mast
Mast, MAST or MASt may refer to:
Engineering
* Mast (sailing), a vertical spar on a sailing ship
* Flagmast, a pole for flying a flag
* Guyed mast, a structure supported by guy-wires
* Mooring mast, a structure for docking an airship
* Radio mas ...
to the
deck, the
bowsprit
The bowsprit of a sailing vessel is a spar (sailing), spar extending forward from the vessel's prow. The bowsprit is typically held down by a bobstay that counteracts the forces from the forestay, forestays. The bowsprit’s purpose is to create ...
, or to another mast.
Description

Most staysails are triangular; however, some are four-cornered, notably some
fisherman's staysails.
Triangular staysails set forward of the foremost mast are called
jib
A jib is a triangular sail that sets ahead of the foremast of a sailing vessel. Its forward corner (tack) is fixed to the bowsprit, to the bows, or to the deck between the bowsprit and the foremost mast. Jibs and spinnakers are the two main ty ...
s, headsails, or foresails. The innermost such sail on a
cutter,
schooner
A schooner ( ) is a type of sailing ship, sailing vessel defined by its Rig (sailing), rig: fore-and-aft rigged on all of two or more Mast (sailing), masts and, in the case of a two-masted schooner, the foremast generally being shorter than t ...
, and many other rigs having two or more foresails is referred to simply as ''the staysail'', while the others are referred to as jibs, flying jibs, etc.
Types of staysail include the tallboy staysail (a narrow staysail carried between the spinnaker and the mainsail on racing yachts), the
genoa staysail (a larger one carried inside the spinnaker when broad reaching), and the bigboy staysail (another name for the shooter or blooper, carried on the
leeward
In geography and seamanship, windward () and leeward () are directions relative to 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 o ...
side of the spinnaker). Unlike the cutter staysail, none of these sails have their luff affixed to a stay.
On large rigs, staysails other than headsails are named according to the mast and mast section on which they are hoisted. Thus, the staysail hoisted on a stay that runs forward and downwards from the top of the ''
mizzen topgallant mast'' is the ''mizzen topgallant staysail''. If two staysails are hoisted to different points on this mast, they would be the ''mizzen upper topgallant staysail'' and the ''mizzen lower topgallant staysail''.
Uses
In square rigged ships the staysails can help in tacking, overcoming the lumbering square sails' tendency to prevent bearing up to windward, especially in light winds. Where a ship attempts to tack but fails and has to bear away again on the original tack, she is said to have missed her stays. In cutter rigged yachts the genoa will often need to be furled before changing tack due to the difficulty in passing the big sail between the two forestays. Here the staysail can help bring the bow through the wind more effectively.
In addition to providing more overall
sailing force, a staysail can be used to modify a ship's
sail plan
A sail plan is a drawing of a sailing craft, viewed from the side, depicting its sails, the spars that carry them and some of the rigging that supports the rig. By extension, "sail plan" describes the arrangement of sails on a craft. A sailing c ...
to be more efficient in different types of weather. For example, in high winds a captain might reef a headsail, but that impacts the sail shape as well as the center of effort and can result in slower ship speed, greater heel and increased
lee helm. Instead, the headsail could be furled entirely and a staysail used instead, resulting in higher ship speed due to a lower, further aft center of effort creating less heel and a more balanced sail plan.
See also
*
Glossary of nautical terms (A-L) Glossary of nautical terms may refer to:
* Glossary of nautical terms (A–L)
* Glossary of nautical terms (M–Z)
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