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February 1, 2016 “I was using a code zero on a Saga 409 and found it had a tendency to hourglass when we were unfurling. I am thinking we had the block too far forward. Where should the sheet block be attached? Any other suggestions? Also should the sail be stowed furled or folded? ”

David Flynn

December 8, 2015 Quantum Expert Answer

The issue you are having is not uncommon when it comes to free-flying a sail that furls. When you are using your genoa it has a ridged foil to help the luff rotate at the same time; but a code zero only has a rope luff. As you would guess, this means that the top of the sail can spin in a direction opposite from the bottom of the sail. Reduce this risk by making sure the boat is going downwind while the sail is being hoisted. Then, while aimed downwind, unfurl and come up to the course you would like to sail. What this does is help keep the apparent wind speed down and lessens the risk of the hourglass.

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