Editing Sail components (section)

===Edge construction===
[[File:Liekleine.jpg|thumb|Leech line with jam cleat to control the tension on the leach of a foresail.]]
{{See also|Bolt rope|Roller furling}}
Sails have a variety of treatments at their edges, either to attach the sail to a stay, spar or mast or to prevent a free edge from fluttering or fraying.
*''[[Bolt rope]]s'' are sewn onto the edges of the sail to reinforce them, or to fix the sail into a groove in the boom, in the mast, or in the luff foil of a [[Roller furling|roller-furling]] jib.<ref name="Kipping1847">{{cite book |first=Robert |last=Kipping |title=The Elements of Sailmaking: Being a Complete Treatise on Cutting-out Sails, According to the Most Approved Methods in the Merchant Service... |url=https://books.google.com/books?id=3n8EAAAAQAAJ |year=1847 |publisher=F.W. Norie & Wilson |pages=58–72}}</ref>
*''Leech lines'' are found on mainsails and large jibs to tighten the leech and prevent fluttering. They run through a sleeve on the leech from the head to the clew, where there is usually a clam cleat to tighten it. Occasionally, ''foot lines'' perform an analogous function on a loose-footed sail.<ref name = Nicolson>
{{cite book
 | last = Nicolson
 | first = Ian
 | title = A Sail for All Seasons: Cruising and Racing Sail Tips
 | publisher = Sheridan House, Inc.
 | date = 1998
 | pages = 124
 | url = https://books.google.com/books?id=nO3M-8JAhH4C&pg=PA93
 | isbn = 9781574090475 }}</ref>
*''UV protection panels'' are usually affixed to the leech and foot of roller furling jibs to prevent ultraviolet rays from reaching the sailcloth while the sail is not in use. These are typically a dark color to absorb the harmful rays.<ref name = Pinney>
{{cite book
 | last = Pinney
 | first = Tor
 | title = Ready for Sea!: How to Outfit the Modern Cruising Sailboat and Prepare Your Vessel and Yourself for Extended Passage-making and Living Aboard
 | publisher = Sheridan House, Inc.
 | date = 2002
 | pages = 256
 | url = https://books.google.com/books?id=KbIDXWJZ610C&pg=PA45
 | isbn = 9781574091441 }}</ref>