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LeeD
Joined: 12 Jun 2008 Posts: 1175
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Posted: Thu Sep 18, 2008 10:03 am Post subject: |
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Certainly the Formula 9-12 meter sails seem to have the highest percentate of twist and slack droop.
My 3.0 Voodoo seems to have lots of twist and droop, when maxed out downhaul to the MAX mark, which seem to be how they like to be sailed under any wind conditions.
Just about all my post '91 sails need droop to at least 2.5 battens down from the top, with the exception of the Northwave 4.7, which seems to do well with very moderate slack to the first batten.....maybe concurring to Isobar's observation that thoses sails are designed differently than the norm.
But still, a bird flapping and gliding is a pretty good example of how our windsurfing sails should look and behave. |
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ctuna
Joined: 27 Jun 1995 Posts: 1125 Location: Santa Cruz Ca
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Posted: Sun Sep 21, 2008 2:25 pm Post subject: Most Sails have downhaul Indicators these days |
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If you use the downhaul Indicator on the sail and the proper mast you should be close o the correct adjustment. More downhaul tension equals less power and a flatter sail which means more control and better ability to remain stable in the gusts to my understanding. Also downhaul and outhaul effect one another. The more you outhaul the less floppy the leech appears . If you adjust the downhaul you should readjust the outhaul . When I first set up my downhaul I usually go a little bet further than I want it knowing that when I outhaul some of downhall will disappear. |
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