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Daggerboard - Wikipedia

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<a class="vector-toc-link" href="#Boats_with_daggerboards"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Boats with daggerboards</span> </div> </a> <ul id="toc-Boats_with_daggerboards-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> 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div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">This article is about the sailing vessel component. For the wooden fascia panels in canopy roofs, see <a href="/wiki/Canopy_(building)" class="mw-redirect" title="Canopy (building)">Canopy (building)</a>.</div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:KonaVsIMCO_CB.jpg" class="mw-file-description"><img alt="Exocet Kona daggerboard compared to Mistral One Design daggerboard" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/KonaVsIMCO_CB.jpg/220px-KonaVsIMCO_CB.jpg" decoding="async" width="220" height="98" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/KonaVsIMCO_CB.jpg/330px-KonaVsIMCO_CB.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/23/KonaVsIMCO_CB.jpg/440px-KonaVsIMCO_CB.jpg 2x" data-file-width="800" data-file-height="356" /></a><figcaption>Windsurf daggerboards from Exocet Kona and Mistral One Design</figcaption></figure> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Laser_dinghy.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Laser_dinghy.svg/220px-Laser_dinghy.svg.png" decoding="async" width="220" height="323" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Laser_dinghy.svg/330px-Laser_dinghy.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Laser_dinghy.svg/440px-Laser_dinghy.svg.png 2x" data-file-width="545" data-file-height="800" /></a><figcaption>A <a href="/wiki/Laser_(dinghy)" title="Laser (dinghy)">Laser</a> has a daggerboard, which can be pulled up through the centre of the hull.</figcaption></figure> <p>A <b>daggerboard</b> is a retractable <a href="/wiki/Centreboard" title="Centreboard">centreboard</a> used by various <a href="/wiki/Sailing" title="Sailing">sailing</a> craft. While other types of centreboard may pivot to retract, a daggerboard slides in a casing. The shape of the daggerboard converts the forward motion into a windward lift, countering the leeward push of the <a href="/wiki/Sail" title="Sail">sail</a>. The theoretical centre of lateral resistance is on the trailing edge of the daggerboard.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (August 2020)">citation needed</span></a></i>&#93;</sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="General">General</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=1" title="Edit section: General"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A daggerboard is a removable vertical keel that is inserted through a "trunk" in the center of a vessel's hull, usually amidships. Daggerboards are usually found in small sailing craft such as <a href="/wiki/Day_sailer" title="Day sailer">day sailers</a>, which are easily handled by a single person. Daggerboards are not usually ballasted but are locked in place by a clip or pin. Unlike a centreboard, which can be set at different angles to the hull of the boat, daggerboards are generally limited to a single perpendicular position relative to the hull. If a daggerboard is located off center, it is called a <a href="/wiki/Leeboard" title="Leeboard">leeboard</a> or a <a href="/wiki/Bilgeboard" title="Bilgeboard">bilgeboard</a>. </p><p>The characteristic which differentiates daggerboards from other centerboards and <a href="/wiki/Swing_keels" class="mw-redirect" title="Swing keels">swing keels</a> is that daggerboards are easily removable, even when the boat is underway. <a href="/wiki/Centerboard" class="mw-redirect" title="Centerboard">Centerboards</a> and swing keels, common alternatives to fixed keels, can pivot up and down but are fixed to the hull. The freedom of movement of dagger- and centerboards allows them to swing or slide up into the hull of the boat, which is advantageous when sailing in shallow waters. The pivoting centerboard or swing keel can swing up when it strikes an object which helps prevents the sort of damage to which fixed <a href="/wiki/Keel" title="Keel">keels</a> or daggerboards are subject.<sup id="cite_ref-Hankinson_1-0" class="reference"><a href="#cite_note-Hankinson-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> Daggerboards can be raised and lowered as needed but will generally be damaged if not retracted before impact with the bottom or with floating objects. </p><p>Many small sailboats use a daggerboard instead of a fixed keel. This allows these boats to be more easily moved on trailers, sailed in shallow waters, and easily beached.<sup id="cite_ref-AP2008_2-0" class="reference"><a href="#cite_note-AP2008-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> Daggerboards also afford an opportunity to reduce drag when racing because they can be retracted when not needed (i.e. when sailing downwind or in very light winds). </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Catamaran.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Catamaran.svg/220px-Catamaran.svg.png" decoding="async" width="220" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Catamaran.svg/330px-Catamaran.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Catamaran.svg/440px-Catamaran.svg.png 2x" data-file-width="4094" data-file-height="3220" /></a><figcaption>Catamarans are stable because of their multihull designs which utilize daggerboards</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Parts_of_the_rig.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Parts_of_the_rig.JPG/220px-Parts_of_the_rig.JPG" decoding="async" width="220" height="183" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Parts_of_the_rig.JPG/330px-Parts_of_the_rig.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Parts_of_the_rig.JPG/440px-Parts_of_the_rig.JPG 2x" data-file-width="1600" data-file-height="1330" /></a><figcaption>Keel is vertically removable</figcaption></figure> <p>Daggerboards are often made of wood; the problem with wood is that wood rots over time. Alternate materials for daggerboards are metal (aluminum/steel) and <a href="/wiki/Fiberglass" title="Fiberglass">fiberglass</a>. A daggerboard boat can be costly to manufacture. If not well-made, the daggerboard will transfer vibrations from the trunk through the hull. </p> <div class="mw-heading mw-heading3"><h3 id="Purpose">Purpose</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=2" title="Edit section: Purpose"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The purpose of the daggerboard (or any keel) is to balance the force of the wind on the sails. Without a daggerboard or keel, a sailboat could not sail up-wind and would simply be blown sideways.<sup id="cite_ref-Hankinson_1-1" class="reference"><a href="#cite_note-Hankinson-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p><p>During a storm, daggerboards can help reduce the tendency of a small boat to tip over ("breach") due to waves. A catamaran in a storm would lift the <a href="/wiki/Leeward" class="mw-redirect" title="Leeward">leeward</a> hull daggerboard and fully extend the upwind daggerboard.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="Conventional wisdom, but is there any research on the topic? (January 2020)">citation needed</span></a></i>&#93;</sup> If there is no wind and an outboard motor is being used, lifting the daggerboards will ensure the least drag.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p><p>When a small sailboat flips on its side, the keel can also be used to right the boat. Standing on the keel gives the sailor additional leverage to roll the hull upright. The centerboard, daggerboard, or bilgeboard can be used as a platform upon which to stand, providing increased <a href="/wiki/Mechanical_advantage" title="Mechanical advantage">leverage</a>, in the event the <a href="/wiki/Dinghy_sailing" title="Dinghy sailing">dinghy</a> overturns via a <a href="/wiki/Capsizing" title="Capsizing">capsize</a> or <a href="/wiki/Turtling_(sailing)" title="Turtling (sailing)">turtle</a>. </p> <div class="mw-heading mw-heading3"><h3 id="How_it_works">How it works</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=3" title="Edit section: How it works"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Because water is denser than air, the force generated by wind against the much larger surface area of the sails can be equalized by the force of a relatively small daggerboard pushing in the water below the hull. A daggerboard fits into a trunk that runs through the hull of the rig. When the board is in the trunk it keeps the water out while in use due to how tightly wedged it is. It is held in place by a pin on the forward end or a shock cord. The daggerboard puts a counterforce from the wind pushing on the sails. Daggerboards are often long and thin to reduce drag and increase effective lift, thus providing a better lift-to-drag ratio. </p> <div class="mw-heading mw-heading3"><h3 id="History">History</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=4" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 2008, a 55-foot-long (17&#160;m) daggerboard ship was found using deep scan sonar equipment off the southern shore of <a href="/wiki/Lake_Ontario" title="Lake Ontario">Lake Ontario</a>, the only such vessel known to have been found in the <a href="/wiki/Great_Lakes" title="Great Lakes">Great Lakes</a>. Vessels of this type were used for a short time in the early 19th century.<sup id="cite_ref-AP2008_2-1" class="reference"><a href="#cite_note-AP2008-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>In the early 19th century daggerboards were infrequently being used on American <a href="/wiki/Schooner" title="Schooner">schooners</a>. These schooners were used for nearby coastal trade of cotton, wheat, and apples. A sunken 1833 daggerboard schooner was found in the great lakes with the help of sonar equipment.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> Knowing this, daggerboards have been around since late in the 17th century. Daggerboards can be found on <a href="/wiki/Monohulls" class="mw-redirect" title="Monohulls">monohulls</a> which is the classic sailboat and <a href="/wiki/Multihulls" class="mw-redirect" title="Multihulls">multihulls</a> called catamarans. </p><p>Daggerboards come in all different shapes and sizes, some curved or s-shaped. Curved daggerboards started to appear thirty to forty years ago. The first prototype was made in 1985 by Ian Farrier. The benefits of vertical lift generated by curved daggerboards are nominal. When actually sailing, curved daggerboards - not to be confused with hydrofoils - do not make a drastic change.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Boats_with_daggerboards">Boats with daggerboards</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=5" title="Edit section: Boats with daggerboards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Generally, daggerboards are used on smaller rigs such as 10 to 40 feet for racing but there is a large number of custom and semi-custom catamaran builders who offer daggerboards as an option. Daggerboard rigs may be faster than fixed keels because fixed keels have so much <a href="/wiki/Hydrodynamic" class="mw-redirect" title="Hydrodynamic">hydrodynamic</a> drag by the shape. Some makes which utilize a daggerboard design are: The <a href="/wiki/Mirror_Dinghy" class="mw-redirect" title="Mirror Dinghy">Mirror Dinghy</a>, <a href="/wiki/Laser_(dinghy)" title="Laser (dinghy)">Laser</a>, <a href="/wiki/Vanguard_15" title="Vanguard 15">Vanguard 15</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Hankinson-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hankinson_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hankinson_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Hankinson, K. (1973). Rigging small sailboats. Bellflower, Calif.: Glen-L. Keel daggerboard rudder. (n.d.). Retrieved March 22, 2015, from <a rel="nofollow" class="external free" href="http://www.mecaflux.com/en/keel">http://www.mecaflux.com/en/keel</a><sup class="noprint Inline-Template"><span style="white-space: nowrap;">&#91;<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title="&#160;Dead link tagged July 2019">permanent dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">&#8205;</span>&#93;</span></sup> daggerboard rudder.htm</span> </li> <li id="cite_note-AP2008-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-AP2008_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-AP2008_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://archive.today/20130124100410/http://www.gmanetwork.com/news/story/139261/news/world/upstate-ny-explorers-id-rare-boat-in-lake-ontario/">"Upstate NY explorers ID rare boat in Lake Ontario"</a>. Associated Press. December 13, 2008. Archived from <a rel="nofollow" class="external text" href="http://www.gmanetwork.com/news/story/139261/news/world/upstate-ny-explorers-id-rare-boat-in-lake-ontario/">the original</a> on January 24, 2013.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=Upstate+NY+explorers+ID+rare+boat+in+Lake+Ontario&amp;rft.date=2008-12-13&amp;rft_id=http%3A%2F%2Fwww.gmanetwork.com%2Fnews%2Fstory%2F139261%2Fnews%2Fworld%2Fupstate-ny-explorers-id-rare-boat-in-lake-ontario%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaggerboard" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text">Multihull Keels and Daggerboards | Catamaran Dealer. (2009, March 12). Retrieved April 8, 2015, from <a rel="nofollow" class="external free" href="http://www.aeroyacht.com/2009/03/12/multihull-keels-and-daggerboards/">http://www.aeroyacht.com/2009/03/12/multihull-keels-and-daggerboards/</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150103224025/http://www.aeroyacht.com/2009/03/12/multihull-keels-and-daggerboards/">Archived</a> 2015-01-03 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>)</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text">The Blade. Retrieved April 7, 2015, from <a rel="nofollow" class="external free" href="http://www.toledoblade.com/local/2014/09/08/Rare-dagger-board-schooner-discovered-in-deep-water-off-Oswego-N-Y.html">http://www.toledoblade.com/local/2014/09/08/Rare-dagger-board-schooner-discovered-in-deep-water-off-Oswego-N-Y.html</a></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text">(Boat Builder)</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text">Firebird Catamaran. (n.d.). Retrieved March 22, 2015, from <a rel="nofollow" class="external free" href="http://www.firebirdcat.com/technical_information.htm/technical_info_daggerboard.htm">http://www.firebirdcat.com/technical_information.htm/technical_info_daggerboard.htm</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150208161719/http://firebirdcat.com/technical_information.htm/technical_info_daggerboard.htm">Archived</a> 2015-02-08 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Daggerboard&amp;action=edit&amp;section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Daggerboards" class="extiw" title="commons:Category:Daggerboards">Daggerboards</a></span>.</div></div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1235681985"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237033735"><div class="side-box side-box-right plainlinks sistersitebox"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/60px-Wiktionary-logo-en-v2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/80px-Wiktionary-logo-en-v2.svg.png 2x" data-file-width="512" data-file-height="512" /></span></span></div> <div class="side-box-text plainlist">Look up <i><b><a href="https://en.wiktionary.org/wiki/daggerboard" class="extiw" title="wiktionary:daggerboard">daggerboard</a></b></i> in Wiktionary, the free dictionary.</div></div> </div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline 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href="/wiki/Template:Sailing_ship_elements" title="Template:Sailing ship elements"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Sailing_ship_elements" title="Template talk:Sailing ship elements"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Sailing_ship_elements" title="Special:EditPage/Template:Sailing ship elements"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Parts_of_a_sailing_ship" style="font-size:114%;margin:0 4em">Parts of a <a href="/wiki/Sailing_ship" title="Sailing ship">sailing ship</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aftercastle" title="Aftercastle">Aftercastle</a></li> <li><a href="/wiki/Afterdeck" title="Afterdeck">Afterdeck</a></li> <li><a href="/wiki/Anchor" title="Anchor">Anchor</a></li> <li><a href="/wiki/Anchor_windlass" title="Anchor windlass">Anchor windlass</a></li> <li><a href="/wiki/Apparent_wind_indicator" title="Apparent wind indicator">Apparent wind indicator</a></li> <li><a href="/wiki/Beakhead" title="Beakhead">Beakhead</a></li> <li><a href="/wiki/Bilge" title="Bilge">Bilge</a></li> <li><a href="/wiki/Bilgeboard" title="Bilgeboard">Bilgeboard</a></li> <li><a href="/wiki/Bitts" title="Bitts">Bitts</a></li> <li><a href="/wiki/Boom_brake" title="Boom brake">Boom brake</a></li> <li><a href="/wiki/Bow_(watercraft)" title="Bow (watercraft)">Bow or prow</a></li> <li><a href="/wiki/Bowsprit" title="Bowsprit">Bowsprit</a></li> <li><a href="/wiki/Nautical_cable" title="Nautical cable"> Cable</a></li> <li><a href="/wiki/Capstan_(nautical)" title="Capstan (nautical)">Capstan</a></li> <li><a href="/wiki/Cathead" title="Cathead">Cathead</a></li> <li><a href="/wiki/Carpenter%27s_walk" class="mw-redirect" title="Carpenter&#39;s walk">Carpenter's walk</a></li> <li><a href="/wiki/Centreboard" title="Centreboard">Centreboard</a></li> <li><a href="/wiki/Chains_(nautical)" title="Chains (nautical)">Chains</a></li> <li><a href="/wiki/Cockpit_(sailing)" title="Cockpit (sailing)">Cockpit</a></li> <li><a href="/wiki/Companionway" title="Companionway">Companionway</a></li> <li><a href="/wiki/Crow%27s_nest" title="Crow&#39;s nest">Crow's nest</a></li> <li><a class="mw-selflink selflink">Daggerboard</a></li> <li><a href="/wiki/Deck_(ship)" title="Deck (ship)">Deck</a></li> <li><a href="/wiki/Figurehead_(object)" title="Figurehead (object)">Figurehead</a></li> <li><a href="/wiki/Forecastle" title="Forecastle">Forecastle</a></li> <li><a href="/wiki/Frame_(nautical)" title="Frame (nautical)">Frame</a></li> <li><a href="/wiki/Gangway_(nautical)" title="Gangway (nautical)">Gangway</a></li> <li><a href="/wiki/Gunwale" title="Gunwale">Gunwale</a></li> <li><a href="/wiki/Head_(watercraft)" title="Head (watercraft)">Head</a></li> <li><a href="/wiki/Hold_(compartment)" title="Hold (compartment)">Hold</a></li> <li><a href="/wiki/Hull_(watercraft)" title="Hull (watercraft)">Hull</a></li> <li><a href="/wiki/Jackline" title="Jackline">Jackline</a></li> <li><a href="/wiki/Jibboom" title="Jibboom">Jibboom</a></li> <li><a href="/wiki/Keel" title="Keel">Keel</a> <ul><li><a href="/wiki/Canting_keel" title="Canting keel">Canting</a></li></ul></li> <li><a href="/wiki/Keelson" title="Keelson">Kelson</a></li> <li><a href="/wiki/Leeboard" title="Leeboard">Leeboard</a></li> <li><a href="/wiki/Mast_(sailing)" title="Mast (sailing)">Mast</a></li> <li><a href="/wiki/Orlop_deck" title="Orlop deck">Orlop deck</a></li> <li><a href="/wiki/Outrigger" class="mw-redirect" title="Outrigger">Outrigger</a></li> <li><a href="/wiki/Poop_deck" title="Poop deck">Poop deck</a></li> <li><a href="/wiki/Port_and_starboard" title="Port and starboard">Port</a></li> <li><a href="/wiki/Porthole" title="Porthole">Porthole</a></li> <li><a href="/wiki/Quarter_gallery" title="Quarter gallery">Quarter gallery</a></li> <li><a href="/wiki/Quarterdeck" title="Quarterdeck">Quarterdeck</a></li> <li><a href="/wiki/Rib_(nautical)" title="Rib (nautical)">Rib</a></li> <li><a href="/wiki/Rudder" title="Rudder">Rudder</a></li> <li><a href="/wiki/Ship%27s_wheel" title="Ship&#39;s wheel">Ship's wheel</a></li> <li><a href="/wiki/Skeg" title="Skeg">Skeg</a></li> <li><a href="/wiki/Stem_(ship)" title="Stem (ship)">Stem</a></li> <li><a href="/wiki/Port_and_starboard" title="Port and starboard">Starboard</a></li> <li><a href="/wiki/Stern" title="Stern">Stern or poop</a></li> <li><a href="/wiki/Sternpost" title="Sternpost">Sternpost</a></li> <li><a href="/wiki/Strake" title="Strake">Strake</a></li> <li><a href="/wiki/Taffrail" title="Taffrail">Taffrail</a></li> <li><a href="/wiki/Tiller" title="Tiller">Tiller</a></li> <li><a href="/wiki/Top_(sailing_ship)" title="Top (sailing ship)">Top</a></li> <li><a href="/wiki/Transom_(nautical)" title="Transom (nautical)">Transom</a></li> <li><a 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