Editing Outrigger

{{short description|Projecting structure on a boat}}
{{About|a structure fitted onto some boats|boats fitted with this structure, sometimes also called "outriggers"|Outrigger boat|the hotels and resorts company|Outrigger Hotels & Resorts|ski equipment|Outrigger ski|the video game|Outtrigger (video game)|the Swedish metal band|Outtrigger (band)}}

[[File:COLLECTIE TROPENMUSEUM Reliëf op de Borobudur TMnr 20025669.jpg|thumb|Relief of [[Borobudur]] Temple (8th century AD) in [[Central Java]], [[Indonesia]], showing a ship with outrigger]]
[[Image:Outrigger on Hawaiian sailing canoe.png|thumb|Outrigger on a contemporary Hawaiian sailing canoe]]

An '''outrigger''' is a projecting structure on a boat, with specific meaning depending on types of vessel. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a [[crane (machine)|crane]] that lifts heavy loads.
==Powered vessels and sailboats==
{{See also|Outrigger boat}}
An outrigger describes any contraposing float [[rigging]] beyond the side ([[gunwale]]) of a boat to improve the vessel's stability. If a single outrigger is used it is usually but not always [[windward]].<ref>''Early Ships and Seafaring: Water Transport Beyond Europe''; Sean McGrail; Glossary</ref>{{Why|reason=an explanation of the benefit of windward positioning would be useful here|date=March 2024}} The technology was originally developed by the [[Austronesian people]]. There are two main types of boats with outriggers: double outriggers (prevalent in [[maritime Southeast Asia]]) and single outriggers (prevalent in [[Madagascar]], [[Melanesia]], [[Micronesia]] and [[Polynesia]]). [[Multihull]] ships are also derived from outrigger boats.<ref>{{cite journal|last1=Texas|first1=Edwin Doran Jr.|title=Outrigger ages|journal=The Journal of the Polynesian Society|date=1974|volume=83|issue=2|pages=130&ndash;140|url=http://www.jps.auckland.ac.nz/document//Volume_83_1974/Volume_83%2C_No._2/Outrigger_ages%2C_by_Edwin_Doran_Jnr.%2C_p_130-140/p1}}</ref>

In an [[outrigger canoe]] and in [[sailboats]] such as the [[proa]], an outrigger is a thin, long, solid, [[hull (watercraft)|hull]] used to stabilise an inherently unstable main hull. The outrigger is positioned rigidly and parallel to the main hull so that the main hull is less likely to [[capsize]].  If only one outrigger is used on a vessel, its [[weight]] reduces the tendency to capsize in one direction and its [[buoyancy]] reduces the tendency in the other direction.

On a [[keelboat]], "outrigger" refers to a variety of structures by which the [[running rigging]] (such as a [[sheet (sailing)|sheet]]) may be attached outboard (outside the lateral limits) of the boat's hull. The [[Racing Rules of Sailing]] generally prohibit<ref>{{cite web | title=The Racing Rules of Sailing 2017-2020 | url=http://www.sailing.org/tools/documents/WorldSailingRRS20172020-[20946].pdf#page=35 | access-date=2016-11-12 }}</ref> such outriggers, though they are explicitly permitted on specific classes, such as the [[IMOCA 60|IMOCA Open 60]]<ref>{{cite web | url=http://www.sailing.org/tools/documents/IMOCA%20CR_2008-[5871].pdf#page=14 |title=Class Rules - IMOCA 60 (Open 60 Monohull)| access-date=2016-11-12 }}</ref> used in several major offshore races.

==Fishing==
In [[fishing]] from vessels, an outrigger is a pole or series of poles that allow boats to trawl more lines in the water without tangling and simulates a school of fish.

==Rowing==
{{unsourced|section|date=June 2024}}
[[Image:Scullers_with_outriggers_1851.jpg|thumb|Early racing sculls with outriggers in 1851.]]
In a [[Watercraft rowing|rowing]] boat or [[galley]], an outrigger (or rigger) is a triangular frame that holds the [[rowlock]] (into which the [[oar]] is slotted) away from the saxboard (or gunwale in [[Cornish_pilot_gig|gig rowing]]) to optimize leverage. Wooden outriggers appear on the new [[trireme]] around the 7th or 6th centuries BC and later on Italian galleys [[Galley#Middle_Ages_2|around AD 1300]], while [[Harry Clasper]] (1812–1870), a [[United Kingdom|British]] professional rower, popularised the use of the modern tubular-metal version and the top rowing events accepted the physiological and ergonomic advantages so acceded to its use in competitions.  In recent decades, some manufacturers of [[racing shells]] have developed '''wing-riggers''' which are reinforced arcs or flattened tubular projections akin to aircraft wings, instead of conventional triangular structures.

==See also==
{{Wiktionary|outrigger}}
* [[Outrigger canoe]]
* [[Outrigger canoe racing]]
* [[Racing shell]]
* [[Sailing canoe]]
* [[Training wheels]]

==References==
{{Commons category|Outriggers}}
{{Reflist}}
{{Austronesian ships}}
{{Canoeing and kayaking}}

[[Category:Watercraft components]]
[[Category:Canoeing and kayaking equipment]]
[[Category:Rowing equipment]]
[[Category:Structural system]]