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The 4th item in the top row of the first image is the Luff Tackle, using the authors rule that you can invert any combination and subtract one from the advantage; the non-inverted shown in TFA is 1:4 and the luff tackle is inverted and 3:1.



Cool, thanks. Why I said "appears". Figured I was probably missing something. Author has spent way more time on pulleys.




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