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Old Today, 18:24   #1
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Tackle mechanical advantage
Am I correct in thinking the mechanical advantage of these two arrangements are the same?
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Currently hauled out ashore Summerfield FL for refit
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Old Today, 18:34   #2
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Re: Tackle mechanical advantage
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Originally Posted by sanibel sailor View Post
Am I correct in thinking the mechanical advantage of these two arrangements are the same?
By counting the number of ropes pulling the moving part (the boom) . . . . I would have said the left system was 5:1 while the right was 4:1.
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Old Today, 19:19   #3
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Re: Tackle mechanical advantage
Agree with the above and also the 4: 1 has a higher point loading on the boom if that is what the top rail is.
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