Sail Maintenance

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Excerpted from The Handbook of Sailing

Most people are not sufficiently expert to be able to carry out any but the most minor repairs to their sails and it is better not to attempt to mend sails yourself. They should be sent back to the manufacturer or to a professional sail repairer. However, it is essential to learn how to spot signs of wear so that you can deal with it before it gets worse. The easiest way to inspect your sails is to lay them out flat on an even clean surface and work around the edges and over the belly of the sail. Pay special attention to the points where the sail is attached to the spars and rigging.

The head
Examine the headboard (the reinforced part at the head of the sail) and make sure that the rivets are in place and that the stitching is not weak anywhere. The latter may well wear around the head and you will need to check the reinforced patches in this area.

The tack
The tack is subjected to a great deal of strain and can distort. If the stitching breaks the whole sail will become misshapen. On a main sail, look for signs of wear on the bolt line (rope edging) where it rubs on the boom and for damage to the stitching on it.

The clew
The clew is subjected to the same type of wear as the tack, but on headsails is particularly vulnerable to chafe against the standing rigging.

The Luff
On a mainsail, check that all the slugs are properly attached and not broken and that the reefing cringle is not distorted. Look out for chafe along the bolt line on a mainsail and for strands of broken wire on a headsail luff. The hanks on a headsail must be firmly attached and free from any corrosion.

The foot
On a mainsail with a roller reefing system, check for signs of chafe where it has been rolled around the boom. If there are slab reefing points or eyelets check that these are not pulled or torn.

The leech
Examine the battern pockets for damaged stitching and if there are any leech line attachments make sure they are in position. Genoa leeches on cruising boats are particularly vulnerable to chafe against the lifelines or shrouds.

General points
Always be alert to the possibility of deterioration of the fabric due to sunlight. If the cloth is thin or brittle over a small area it can be patched, but with larger areas the sail should be replaced.

For more advice and tips on everything from boat maintenance, navigation, racing tactics and cruise planning, check out Bob Bond’s The Handbook of Sailing. This complete guide to sailing was last updated in 1992 but still contains thousands of useful nuggets that will appeal to any level sailor.

Darrell Nicholson
Practical Sailor has been independently testing and reporting on sailboats and sailing gear for more than 50 years. Its independent tests are carried out by experienced sailors and marine industry professionals dedicated to providing objective evaluation and reporting about boats, gear, and the skills required to cross oceans. Practical Sailor is edited by Darrell Nicholson, a long-time liveaboard sailor and trans-Pacific cruiser who has been director of Belvoir Media Group's marine division since 2005. He holds a U.S. Coast Guard 100-ton Master license, has logged tens of thousands of miles in three oceans, and has skippered everything from pilot boats to day charter cats. His weekly blog Inside Practical Sailor offers an inside look at current research and gear tests at Practical Sailor, while his award-winning column,"Rhumb Lines," tracks boating trends and reflects upon the sailing life. He sails a Sparkman & Stephens-designed Yankee 30 out of St. Petersburg, Florida. You can reach him at darrellnicholson.com.