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AFT  look up translate image
Toward the stern.
AIR-DRIED LUMBER  look up translate image
Lumber or other wood products that have been either dried by exposure ton natural atmospheric conditions outdoors or in an unheated shed. Woodn that is dried to equilibrium with the surrounding atmosphere. Moisturen content of air-dried wood fiber depends on relative humidity,n temperature, and length of drying period. Also referred to as airn seasoned and contrasts with kiln-dried (KD) lumber.
AMINE BLUSH  look up translate image

ANTI-TRIP CHINE  look up translate image
A flared out aft section of the side/bottom of the boat. The purpose isn to prevent the hard chine of the boat catching a wake or small wave on an sharp turn.
ASPECT RATIO  look up translate image
The relationship between the height of a sail and its breadth. i.e. An sail with a height of 30'and a breadth of 20'has an aspectn ratio of 3:2.
ATHWARTSHIP(S)  look up translate image
Across the boat.
BACKSTAY  look up translate image
A wire-rope from the top of the mast leading aft to prevent the mastn from bending forward.
BALLAST  look up translate image
Weight carried low in a boat to increase stability. The lower, then greater the benefit. Ballast can be lead, iron, concrete, etc.,n depending on the space available. Some boats require lead (a moren expensive material) because the space available will not allown sufficient lighter material to achieve the required ballast weight.
BATTENS  look up translate image
Thin semi-rigid strips of wood or synthetic material inserted inton pockets in the sail in order to maintain the shape of the sail. Interiorn longitudinal reinforcements in a boat hull. Most often located on eithern side of the keel, running as far forward as possible. Battens are alson used to reinforce the sides of some hulls.
BEAM  look up translate image
Width, generally the widest point on the hull, but beam could be givenn at any point in the hull."The beam at the transom, at frame numbern three."The beam is sometimes given as though the hull were an rectangle."The James Cook: a 27'x 8'trailerable cruisingn sailboat."
BIMINI  look up translate image
Sun shade. A bimini provides protection from the sun. It is commonlyn made from fabric mounted on a collapsable frame.
BLOCK  look up translate image
A wood, metal, or synthetic casing containing one or more pulleys orn sheaves.
BOARD FOOT  look up translate image
A lumber measurement. One board foot = 1"X 12"X 12". An piece of lumber 2"X 12"X 12"= 2 board feet. When widthn and thickness are specified, lumber may be called out as linear feet,n i.e., 1"X 6"X 24 linear feet. Linear feet is used when then the lumber will be cut into various lengths, as opposed to a piecen 1"X 6"x 24'which would be a single piece of wood.
BOBSTAY  look up translate image
A chain, wire-rope, or rod supporting a bowsprit or boomkin againstn upward pull.
BOLTROPE  look up translate image
Rope sewn along one or more edges of a sail to strengthen it and taken some of the stress of the cloth when it is stretched tightly.
BOOKMATCH  look up translate image
A term in veneering, where successive pieces of veneer from a flitch aren arranged side by side. A properly done bookmatch will resemble a mirrorn image of the opposite side.
BOOM  look up translate image
The pivoting horizontal"pole"attached to the aft side of then mast to control the foot of the sail.
BOOMKIN  look up translate image
A spar projecting from the stern to which is attached a backstay orn sheet.
BOOT TOP  look up translate image
A panted line, just above the waterline.
BOTTOM SHAPE  look up translate image
As it affects performance in a planing boat. Maximum speed will ben achieved when the bottom of the boat that forms the planing surface isn flat. When the planing surface is a vee, the boat will have a softern ride but less potential speed, and will take longer to come up on an plane. A"flat bottom"makes a better"drag"boat, an deep vee will be a better rough water boat.
BOW (AS IN BOW-WOW, NOT BOW TIE)  look up translate image
The front of the boat."I am going to stand in the bow so I cann watch the porpoises".
BOWSPRIT  look up translate image
A tapered pole extending forward of the bow of a sailboat to which then forestay fastens. The purpose being to increase the amount of sail arean without raising the center of effort.
BREASTHOOK  look up translate image
A knee which mounts atop the stem, to which the sheers attach.
BRIGHT WORK  look up translate image
A term used to describe wood that is finished natural, using varnish orn other clear coating.
BROADSEAM  look up translate image
A seam in a sail, in which the edges of neighboring panels are cut in an convex curve, so that when sewn together the panels force fullness inton the sail.
BULBOUS FOREFOOT  look up translate image
A convex entry at the keel/stem junction (as opposed to a sharp vee)n incorporated to soften the ride. When used in conjunction with a reversen curve at the chine, it usually makes sheet materials impracticaln requiring other planking methods in the forward section.
BULKHEAD  look up translate image
A vertical, athwartship partition, most often serving as a set-up membern or frame.
BULWARK  look up translate image
An extension of the planking above the deck to form a rail.
BURGEE  look up translate image
A triangular shaped flag denoting the yacht club to which the ownern belongs.
BUTT  look up translate image
Buttock. Used for developing the lines of a boat. Used only for loftingn the lines to full size; not required when patterns are supplied.
CAMBER  look up translate image
Athwartship curve of the vessel's deck or cabin top. Curve. Sailn term: The fore and aft curvature of a sail in relation to its chord.
CARLING  look up translate image
A longitudinal structural member at the cockpit perimeter supporting then inboard side of the side deck. (See COAMING)
CARVEL PLANKING  look up translate image
Solid wood planks, butted together, fastened to the frames, with an flexible caulking between the planks. Should not be fiberglassed.
CAT RIG  look up translate image
See SAILBOAT RIGS.
CATAMARAN  look up translate image
A vessel with two parallel hulls.
CAVITATION  look up translate image

CENTER OF EFFORT (CE)(SAIL)  look up translate image
The fore and aft and up and down point on a sail at which the pressuren of the wind is concentrated. The geometric center of the sail. Then higher CE, the more leverage the wind has to heel the boat. When theren is more than one sail, CE's will be given on the drawing for eachn sail plus a combined CE. On a triangle, the CE is the point at which then lines bisecting each angle cross. The location of the CE fore and aft,n affects the way the boat turns into the wind. (See LEE and WEATHER HELM)
CENTER OF LATERAL RESISTANCE (CLR)  look up translate image
The geometric center or pivot point of the underwater hull profile.
CENTERBOARD  look up translate image
A pivoting"keel"that retracts into a case inside a sailboat.n Used to prevent leeway.
CENTERBOARD LIFT  look up translate image
A line or cable for raising and lowering the centerboard on a sailboat.
CHAINPLATE  look up translate image
A metal strap to which shrouds or fittings are attached.
CHECKING (IN WOOD)  look up translate image
Longitudinal separation of the fibers in wood that do not go through then whole cross section. Checks result from tension stresses during then drying process.
CHINE (CHINE LOG)  look up translate image
The junction of the side and bottom planking or the member backing thisn junction.
CHORD  look up translate image
HARD CHINE- Having a distinct bottom/side planking junction as opposedn to a rounded curve.
CLEW  look up translate image
DOUBLE CHINE - Having an additional planking junction between the chinen and the sheer, giving the hull a more rounded look.
CLINKER - SEE PLANKING METHODS-WOOD: CLINKER  look up translate image
MULTI-CHINE - Having one or more additional planking junctions betweenn the chine and the sheer.
CLIPPER BOW  look up translate image
The lower, aft corner of a fore-and-aft sail, where the leech meets then foot.
CLUB-FOOTED JIB  look up translate image

COAMING  look up translate image
Sails in which the panels of cloth run perpendicular to the leech.
COCKPIT  look up translate image
A straight line between the luff and leech of a sail.
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Boat terms
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Created by admin
Created on 2011-05-01 21:37:32
Number of terms 210
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Sources
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  • Category:Boat types - Wikipedia, the free encyclopedia
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