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Mainsail weight minimum #18248
06/06/19 06:58 AM
06/06/19 06:58 AM
Joined: Jun 2016
Posts: 71
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usa1136 Offline OP
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usa1136  Offline OP
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Joined: Jun 2016
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Class rules state the minimum cloth weight of the main is 6.25 oz. Is this minimum weight the weight of the cloth only, or the weight of the cloth inclusive of (for example, in North terms) a high molecular weight urethane "OLY" coating. In other words, do the class rules allow the use of a sail cloth under the 6.25 minimum, if the additional weight of the urethane (or the like) coating adds enough weight to meet or exceed the 6.25 oz requirement?

Re: Mainsail weight minimum [Re: usa1136] #18249
06/06/19 08:04 AM
06/06/19 08:04 AM
Joined: May 2007
Posts: 2,591
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,591
Portsmouth, RI
The class measurer I'm sure will weigh in here but it has always been based on the cloth weight, not the weight with the finishing coats. This provides a consistent baseline that all sailmakers may build to. Class rules specify dacron (or other trade name equivalents) so the associated cloth weights are very well defined for the sailmakers to build class legal sails.


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