<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> With the two snatch blocks that Paragon described --- a dual pulley and a single pulley --- (or three pulleys) what would the multiplier be when using say a 9000# winch? Three times or four times? 27,000 pounds or 36,000 pounds?
What would the force on each pulley be? <HR></BLOCKQUOTE>
Think of it this way, each run of line would add another 9000# of force. 1 run no block=9000#, 1block @ tree=18000#, 2nd block @ tow hook back to tree and tied off @ tree=27000#, or through a third block at tree and back to the other tow hook would be 36000#. The strain on the line at any point would still be 9000#. Each block will cut the overall speed by 50% at that block and double the amount of line to be pulled. Overall speed of 100fpm w/o block, would be 50fpm w/1 block @ tree, 25 fpm w/2nd block @ tow hook and tied to tree, 12.5 fpm w/3rd block @ tree and back to other tow hook.
Don
[This message was edited by Hummie2 on 04-28-03 at 09:14 PM.]
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