Ob1
ArboristSite Lurker
Starting to do some pruning, and wondering about using my "dynamic" rock climbing rope: Are 'dynamic' or 'static' ropes generally preferred for tree work? Why?
Thank yee gennelman.
Thank yee gennelman.
... so don't fall on them, it will not be pretty.
... Blinky you won't be dropping anymore willya? I worry about your parts getting bruised.
Blinky and Treeseer, I appreciate your perspectives. I'm excited to get climbing in a couple weeks and see what all these terms feel like in practice.
TreeSypder, I'd love to know what you're talking about. It sounds like great information, unfortunately, as a rookie I don't what what SWL, SRT, DdRT, or rigs are.:help: Would you do me the favor of defining these for me, or directing me to a source that would?
Thanks for your help.
Thanks for helping to clarify!
i think SWL isn't really arbitrarily set; can be 10:1 (700# of force on a 7000 test line), 20:1; etc.
Part of the 'formulae' for whatever elasticity in a system is the inverse of the present SWL. For as the loading goes up; the SWL goes down; but elasticity comes up; thus the SWL and elasticity are reciprocals.
If you look at manufactures ratings of elasticity in ropes; it is usually/ most accurately stated as at 10% of tensile rating gives elasticity X; at 20% elasticity is greater than X.
So the more loaded a line, the greater the elasticity! But the more loaded, the greater the % of the tensile strength used; so the lower the SWL. At a 10:1 SWL there is less elasticity than at 5:1 SWL.
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