Here are the basics of a sail and the terms that you should know, both when purchasing a new sail and using that new sail!
|ASPECT RATIO - The height of a sail or luff length in relation to its width.||
HEAD - The top edge of a four sided sail
or the top corner of a triangular sail.
|BOLTROPE - Rope sewn along one or more edges of a sail to strengthen it and take some of the stress of the cloth when it is stretched tightly.|
|LUFF - The front or leading edge of a sail.||
||ROACH - The part of the sail that extends beyond the straight line between the head and the clew. Roach is sometimes also applied to the foot.|
|CHORD - A straight line between the luff and leech of a sail.|
|CAMBER - The fore and aft curvature of a sail in relation to its chord.|
|LEECH - The aftmost or back edge of a sail.|
|HANK - A metal or nylon clip used to hold the luff of a headsail or staysail to the forestay|
|TACK - The lower, forward corner of a sail.||FOOT - The lowest edge of a sail.||CLEW - The lower, aft corner of a fore-and-aft sail, where the leech meets the foot.|
|BROADSEAM - A seam in a sail, in which the edges of neighboring panels are cut in a convex curve, so that when they are sewn together the resulting taper in the panels forces fullness into the sail.||TABLING - The folded hem sewn to the edges of a sail to reinforce them.||
CROSSCUT - Sails in which the panels of cloth run perpendicular to the
- The thread that runs across sail cloth from edge to edge.
WARP - The threads that run lengthwise in a woven sailcloth across the fill threads.
STARCUT - Sails in which the panels of cloth radiate from all corners, along the warp
VERTICAL CUT - Sails in which the panels of cloth run vertically or parallel to the luff.
BI-RADIAL - Sails in which the panels of cloth radiate from the head and the clew, along the warp.
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