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post #1 of Old 10-18-2011 Thread Starter
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Rigging Tension

Been reading up on sailboat rigging and don't quite understand rigging tension.

Most documents I read state tension shrouds and stays to 15% of wire breaking strength. Why 15% and say not 5%?

Also, say a boat has shrouds and stays that are 316ss and 1/8 inch diameter with break strength of 1,780 lbs. I would tension to 15% or 267 lbs.

Now say I want to get some safety factor and I up the size to 1/4 inch with a break strength of 6,900 lbs. Why can I not just tension the stays and shrouds to 267lbs (so I do not hog the keel), and then have a bunch of safety factor- all turnbuckels and other fittings would be sized for 1/4 cable.
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