Join Date: Feb 2000
Location: Annapolis, Md
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Re: Dumb Jib Halyard Question...can it be TOO tight?
There are two ways that you can over tighten a jib halyard. The first is that it is too tight to have a proper flying shape. In light winds the halyard wants to be tight enough that the jib does not sag on the stay. That is usually only hand tight.
At the upper end of the wind range, you will want a lot of halyard tension.Carbon sails stretch very little. In fact it takes a little while to get used to them.
By way of example, with my carbon-dyneema jib on my 38 footer there is less than 6 inches in the position of the mark on the halyard between way too loose for light winds, and as tight as I need to get the halyard for heavy winds. (That is with a low stretch halyard.) My prior Kevlar sails stretched roughly 50% more than that and my Dacron delivery Genoa stretched roughly 14" to 16" and had a much narrower wind range being too heavy for really light winds and too stretchy for the upper end of moderate winds. (I e. My carbon sail wind range is from 3- 4 knots to 25 knots, while the Dacron sail is 4 knots to around 12 knots.)
In some ways carbon sails are very tough, meaning that they are typically much lighter and can stand up to much more wind than Dacron sails. But you can over load them and damage them by excessively tightening the halyard.
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Curmudgeon at Large- and rhinestone in the rough, sailing my Farr 11.6 on the Chesapeake Bay
Last edited by Jeff_H; 05-18-2019 at 09:00 AM.