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Jib boom rigging

Old 01-06-2024, 12:42 PM
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petty issues
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Default Jib boom rigging

What is the aerodynamic (or other) advantage of letting the jib boom pivot on a string fastened about 25% aft of the tack vs using the forestay as a pivot axis like full size sailboats do?
Old 01-08-2024, 06:52 AM
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thomas.armstrong
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It has nothing to do with aerodynamics.
For upwind sailing, what you describe is best - but this setup makes it possible to go wing-on-wing when running dead downwind.
How? By allowing the jib to balance near the middle, thus needing almost no effort to change sides.
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Old 01-08-2024, 08:44 AM
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Ahh, Interesting! I've never tried that or seen it done. If only one winch for both the main and jib, I imagine the manuver involves quick reactions to abort a full gybe as soon as the main or jib flips over. Does the jib or the main typically flip first?
Old 01-16-2024, 10:03 AM
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The main usually flips first. It doesn't make any difference if they flip or not, unless you need a starboard tack advantage, racing. an RC boat gybe is not the problem it is with full size boats.
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