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Ascender/Descender instead of bosun's chair
On 11 Dec 2006 09:57:20 -0800, "
wrote: Does rigging the tackle like this give you a 6:1 purchase __as you ascend__? I think it does, but have had trouble convincing the crowd around here. Sounds like 4:1 to me. Just count the number of lines supporting the load, that is the purchase ratio. The tail counts as 1 in this case. |
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