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post #1 of Old 07-30-2013 Thread Starter
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Main and Jib Trailing Edge Flapping

What can be done to stop the trailing edges of the main and jib from flapping? When sailing in 25 knots or more of wind the trailing edge of my jib and the leech of the main start to flap (the jib somtimes significantly). I have tried different tensions on main outhaul, cunningham and halyard but no real improvement. With the jib I have tried different sheet tensions and placement of the lead block to change sheet angles, again with no significant improvement. I have also tried different tensions on the string that runs down the trailing edge of these sails, again with no real improvement. Could the flapping be an indication the sails are old and blown out? Even with reefing of the main and roller reefing of the jib the flapping continues. Both the main and jib have more "belly" than I would like and this may contribute to the flapping, but nothing I do can remove this belly.
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