[quote=windflower]It's been a long time since my school days but I'm fairly certain that in a static load the sum of the external forces must be 0. So if the downhaul is pulling 60lbs the mast is resisting with equal force regardless of how the sail is rigged. Any mechanical advantage in the halyard should reduce the tension where the halyard is tied off.
I agree that more advantage on the halyard could increase the load on the mast a bit if the halyard stretches but it can't exceed the force applied by the downhaul.[/quote]
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