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adjustment varies the degree to which the wind affects the boat – that is, the amount of lateral movement the wind can cause by impacting the upper parts of the boat and the crew. In more conventional calculations, this would be the centre of effort of the sail area (CE). In still water, where the wind is pushing the boat sideways, a contrary force (lateral resistance) develops, resisting that movement. If the central points of the application of those two forces coincide, the boat moves steadily sideways. Otherwise, it rotates in the horizontal plane, until they are in line. By varying the CLR, it is possible to better control the boat's attitude towards the wind and waves. Irregular flowing movement of the water complicates the issue, however. They may be made of wood, fiberglass or aluminum. Some are deployed using internal cables, but others use external ropes and
338:. In time, hydrodynamic improvements took place, pioneered by George Downing, who also created the first removable skeg, which was a teak wood skeg in a teak wood box which was supposed to be held in place by the swelling of the wood in water. In modern surfing board design, the conventional set-up is to have three fins, with single fins being a minority. While most windsurfing boards are single-fin, wave boards now feature some twin-fin, tri-fin and quad-fin designs. Directional kitesurfing boards are usually three-fin, with five-fin designs being used for improved upwind performance.
400:
173:
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In more modern installations, with more than one screw, a fitting supports each propeller shaft just ahead of its screw. This is usually called a shaft bracket but the part of it which extends below the shaft bearing to protect the lower part of the propeller is also a skeg. Similarly, the protective
350:
used on more open water such as the sea. Its purpose and use are rather different from those of the surfing skeg. In the kayak, the amount of exposure of the skeg to the water, and also its effect on the position of the boat's centre of lateral resistance (CLR), is freely adjustable by the crew. The
277:
boats and some sweeping boats, especially pairs, the rudder will be controlled with toe-steering. A skeg typically consists of a flat piece of metal or plastic. Some crews, like
Rutgers Crew, use polished wooden skegs that break off upon impact with debris in order to protect potential damage to the
222:
extension of the keel is the basic skeg. Subsequently, the lowest pintle was commonly mounted below the rudder on a metal extension of the keel. This helped further stabilize and protect the rudder and the name skeg was transferred to it. It used to be relatively small until screw
74:(it moves the center of resistance relative to the center of effort). The term is also often used for the fin on water skis in the U.S. It has been used for the vertical fin on seaplane hulls and floats. The wear-bar on the bottom of snowmobile ski may also be called a skeg.
460:
The skis on a snowmobile have a metal wear-bar on the bottom of them. Many sledders call these "skegs". These skegs help the skis to steer on hard surfaces. These often have carbide embedded in them to reduce wear when driven on non-snow surfaces.
355:. Typically, these are retractable, and they are not a rudder. If properly configured (e.g., use of street sign aluminum in a narrow box that extends through the hull) they will not flex, and will greatly decrease and counter
312:", are attached toward the tail of the board to improve directional stability and control through foot-steering. Fins allow the rider to control the board's direction by varying their side-to-side weight distribution.
497:
521:"Skeg, or Skegg. A projecting stump formerly left on the keel, abaft the stern-post. The after-end of the keel. The composition piece supporting the heel of an equipoise rudder."
525:
A naval encyclopædia: comprising a dictionary of nautical words and phrases; biographical notices, and records of naval officers; special articles of naval art and science
327:
independently added a fixed fin to his second surfboard design, which further popularized the feature. The stability and control it allowed revolutionized the sport.
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were introduced, when it had to reach below the screw and became a proportionately larger feature protecting both screw and rudder from damage.
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On wooden vessels, the skeg may be protected from worm damage by the addition of a bug shoe, or a "a length of hardened material, such as
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Skegs have been used to improve the directional stability of seaplanes. They have been installed on floats and hulls.
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494:"A small fin fitted aft of the keel to protect the rudder and propeller, and improve steering and tracking."
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Aircraft
Reports - Aircraft Manuals - Aircraft Helicopter Engines Propellers Blueprints Publications
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can catch, causing drag and threatening the security of the vessel's steering. In ships such as
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375:
192:, the latter being upright pins and the former, rings to fit round them. Together, they form a
968:
The
Illustrated Dictionary of Boating Terms: 2000 Essential Terms for Sailors and Powerboaters
245:
Where a yacht is designed with a fin keel, it will normally, also have a skeg-mounted rudder.
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637:
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63:
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Small single aluminum fins first evolved into larger wooden versions, then ones made from
160:. Here, the English pronunciation reflects a probable Danish origin, which pronounces the
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mounted on the centre line. The term also applies to the lowest point on an
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on a sailboat, when the craft is moving. In that sense, the skeg acts as a
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of the shell that helps stabilize it and maintain a straight course. The
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attaches to the skeg and is steered by cables attached to it. In select
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Surfing USA!: An
Illustrated History Of The Coolest Sport Of All Time
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of the propeller of an outboard motor is another form of the skeg.
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below the leading edge of the rudder. This somewhat beard-like
214:, the skeg is a very small feature; a tapered extension of the
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Extension of a boat's keel at the back, also a surfboard's fin
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is mounted on the centre-line, it is usual to hang it on
55:
133:. The Norwegian pronunciation of the letter combination
164:
letter combination as an
English speaker would expect.
54:. In more recent years, the name has been used for a
238:
projection of the drive casing, below the rotational
939:"The effectiveness of water rudders on flying boats"
833:"Fixing up your boat: Installing a retractable skeg"
502:
Seatalk, the
Dictionary of English Nautical Language
152:- 'beard point', from the way in which a series of
1341:
196:. This naturally leaves a small gap between the
495:
1011:
827:
825:
860:. Atlantic Kayak Tours. 2013. Archived from
560:
200:and the rudder, into which stray items like
148:. It also appears in the English place name
1025:
962:
876:
852:
850:
428:. Unsourced material may be challenged and
1018:
1004:
822:
528:. PHILADELPHIA: LR HAMERSLY & CO. 1881
448:Learn how and when to remove this message
847:
605:
603:
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171:
612:"Rudders & Skegs: Maneuvering Aids"
574:. London: Blackie and Son. p. 638.
1342:
936:
771:
609:
999:
737:
715:"Rowing Hack: Wooden Break-Away Fins"
598:
269:boats, typically fours and eights, a
167:
144:. The word is related to the English
426:adding citations to reliable sources
393:
13:
956:
346:A skeg is employed in the type of
273:will control the rudder, while in
38:) is a sternward extension of the
14:
1396:
941:. Stevens Institute of Technology
610:Watson, Tom (February 12, 2014).
642:, the Agency's Bristol Bay Boat"
476:Glossary of nautical terms (M–Z)
471:Glossary of nautical terms (A–L)
398:
248:
42:of boats and ships which have a
930:
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799:
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937:Libbey, Lester Blaine (1950).
927:, Figure 38 Float construction
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614:. paddling.net. Archived from
554:
515:
488:
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315:Fixed fins were introduced to
1:
548:
496:MacKenzie, Mike (2005–2012).
858:"How does a kayak skeg work"
744:. Globe Pequot. p. 30.
77:
72:centre of lateral resistance
7:
464:
381:
308:, skegs, usually known as "
257:is the fin attached to the
82:The word originates in the
10:
1401:
972:W. W. Norton & Company
289:
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156:forms, towards the nearby
66:and to a movable fin on a
18:
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778:. MVP Books. p. 46.
638:"AFSC Historical Corner:
341:
70:which adjusts the boat's
1365:Sailing rigs and rigging
481:
1370:Sailing ship components
1059:Apparent wind indicator
835:. Chesapeake Lightcraft
810:Encyclopedia of Surfing
671:Pittsburgh Rowing Club
323:in 1935. Around 1936,
177:
50:or the outdrive of an
1385:Watercraft components
176:A skeg-mounted rudder
175:
64:directional stability
21:Skag (disambiguation)
1350:Nautical terminology
889:Sea Kayaker Magazine
864:on February 23, 2014
772:Marcus, Ben (2005).
667:"Rowing Terminology"
618:on February 23, 2014
422:improve this section
19:For other uses, see
1360:Sailboat components
738:Motil, Guy (2007).
319:by surfing pioneer
1355:Naval architecture
884:"Rudders vs Skegs"
816:2015-09-28 at the
178:
168:In boats and ships
1380:Surfing equipment
1337:
1336:
964:Rousmaniere, John
751:978-0-7627-4621-7
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253:A skeg on rowing
180:Where a vessel's
98:the word remains
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1269:Ship's wheel
1134:Companionway
1028:sailing ship
967:
943:. Retrieved
932:
920:. Retrieved
918:. 2024-04-01
915:
912:"1944 -1945"
906:
896:February 15,
894:. Retrieved
887:
878:
868:February 15,
866:. Retrieved
862:the original
839:February 15,
837:. Retrieved
809:
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649:. Retrieved
645:
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622:February 12,
620:. Retrieved
616:the original
570:
562:Smyth, W. H.
556:
532:February 14,
530:. Retrieved
524:
517:
507:February 14,
505:. Retrieved
501:
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444:
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420:Please help
408:
385:
345:
336:carbon fiber
329:
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114:
102:, in modern
99:
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84:Scandinavian
81:
35:
31:
27:
25:
1254:Quarterdeck
1144:Daggerboard
1139:Crow's nest
1119:Centreboard
1089:Bow or prow
1039:Aftercastle
1026:Parts of a
588:|work=
566:Belcher, E.
390:Snowmobiles
369:centerboard
353:bungee cord
325:Woody Brown
306:kitesurfing
302:windsurfing
1344:Categories
1224:Orlop deck
1159:Forecastle
1154:Figurehead
1084:Boom brake
1074:Bilgeboard
981:0393339181
945:2024-04-01
922:2024-04-01
785:1610606868
741:Surfboards
724:2024-09-28
700:2024-09-28
676:2024-09-28
549:References
438:April 2022
332:fiberglass
317:surfboards
225:propellers
1324:Whipstaff
1294:Sternpost
1284:Starboard
1234:Poop deck
1229:Outrigger
1044:Afterdeck
791:April 10,
719:row2k.com
590:ignored (
580:cite book
409:does not
367:, like a
321:Tom Blake
220:sternward
211:Mary Rose
198:sternpost
104:Norwegian
96:Icelandic
86:word for
78:Etymology
60:surfboard
1304:Taffrail
1244:Porthole
1214:Leeboard
1189:Jackline
1094:Bowsprit
1064:Beakhead
814:Archived
757:April 8,
695:USRowing
568:(1867).
465:See also
382:Aircraft
275:sculling
271:coxswain
267:sweeping
232:ironbark
186:gudgeons
154:tombolos
150:Skegness
121:, it is
1319:Transom
1194:Jibboom
1174:Gunwale
1169:Gangway
1129:Cockpit
1109:Cathead
1104:Capstan
651:6 April
430:removed
415:sources
373:lifting
298:surfing
286:Surfing
190:pintles
139:English
125:and in
119:Swedish
111:Nynorsk
1309:Tiller
1299:Strake
1264:Rudder
1209:Kelson
1124:Chains
1049:Anchor
989:
978:
782:
748:
640:Scoter
498:"Skeg"
342:Kayaks
304:, and
263:rudder
255:shells
182:rudder
146:shaggy
127:Danish
115:skjegg
107:Bokmål
44:rudder
1329:Winch
1164:Frame
1099:Cable
1079:Bitts
1069:Bilge
950:, p.6
571:Skegg
482:Notes
357:pitch
348:kayak
194:hinge
123:skägg
117:, in
100:skegg
94:. In
92:skegg
88:beard
68:kayak
58:on a
32:skegg
1279:Stem
1274:Skeg
1239:Port
1219:Mast
1199:Keel
1184:Hull
1179:Head
1149:Deck
987:ISBN
976:ISBN
898:2014
870:2014
841:2014
793:2013
780:ISBN
759:2013
746:ISBN
653:2018
646:NOAA
624:2014
592:help
534:2014
509:2014
413:any
411:cite
376:foil
363:and
361:roll
334:and
310:fins
280:hull
259:keel
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216:keel
206:rope
204:and
202:kelp
188:and
131:skæg
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296:In
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