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Old 14th March 2008, 10:48 AM   #12 (permalink)
George Hayduke
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Join Date: May 2007
Location: Slickrock, USA
Posts: 92
Default Re: Convert me from Natural crotch to Arbor block

Quote:
Originally Posted by Ekka View Post
Another big minus for blocks is the doubling effect of the load at the pulley.
Before you walk away from that comment you need to elaborate. This isn't true.

The load on the rigging point will double even with natural crotches. Adding a block displaces friction but it doesn't change the load.

In GM's rigging he would wrap the down rope around the tree which displaces the friction, and the load, somewhat. It's too simplistic to say that the trunk wrapping eliminates the load...not actually true.

Pete Donzelli wrote an article about how more efficient blocks displace friction and it's effect on rigging.
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