The cheaper the fabric the heavier the weight due to inferior 'crimping' of the yarns.
A high modulus cloth of lighter weight will vastly outperform a heavy inferior cloth vs. longevity vs. sail shape, etc. etc. etc.
7oz. is typical of plain vanilla woven dacron cloth for a typical 30 footer for a target venue that normally has 12-15kts.
Its all a balance between quality vs. economy .... and you rarely get both in the same package.
02-26-2011 12:59 PM
Depends on the strength of the winds you normally sail in. If you're in an area with stronger winds normally, then a heavier weight sail is going to do much better than a lighter weight sail, since it is less likely to get blown out and distorted by the stronger winds. As I don't sail in your area, I can't say what your typical winds are like...
02-26-2011 11:35 AM
Dacron weight, Mail Sail
What weight dacron would be recommended for a mail sail on a 30 ft. cruising boat, Lake Ontario sailing. Looking at used sails, I have seen anywhere from 5.5 oz. to 9 oz. with 7 oz. seeming to be the most common. Is there that much of a difference in performance and life?