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Re: Problem Turning Windward
I think Davidpm has it mostly right, but I believe you were able to point on one side of the bridge and not the other because, by unrolling the jib, you greatly reduced the imbalance that Davidpm described. By raising both the jib and main, you balance the pressures ahead of, and aft of, the keel's center of lateral resistance. To an extent, you can do the same thing by unrolling a large, overlapping genoa. Part of the genoa extends forward of the CLR, and part of it extends aft of the CLR, and, although that doesn't achieve a perfect balance, it is adequate to enable the boat to point fairly well to windward.
If you are going to sail on jib alone, don't roll it up deeply. If you do, you won't be able to point to windward or tack well.
The better choice to balance the sails and to enable the boat to sail to windward efficiently in stronger winds is always to raise both the jib and mainsail, reducing the size of each in proportion to the strength of the wind.