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Old 16-10-2014, 11:35   #46
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Join Date: Jun 2014
Location: Up the mast, looking for clean wind.
Boat: Currently Shopping, & Heavily in LUST!
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Re: Second Forestay on a Catamaran?

I'd figure that for the most part, the load calculation is for upwind. As unless you are on something which speeds up a lot as you begin to bear off, apparent wind falls as you move away from the wind. And thus, so would the sail & sheet loads.

Although on a displacement boat, the loads on the spinnaker sheet, & especially the guy are HUGE when you're beam reaching. On that point of sail, the loads on everything are pretty much the highest which they get.

Now if you're talking about a lightweight racer, or a multi, who's speed rises on a whole different curve as you foot off... even to the point where the boat never sees wind aft of the beam, then that's another story entirely.
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