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Re: [trenchdigger] Proposed Anchor Rigging:
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paulraphael
May 17, 2007, 6:49 PM
Views: 22863
Registered: Feb 6, 2004
Posts: 670
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I see what you're getting at with that diagram, but I have to ask if you're really serious ... ? Under what circumstances are three people going to land on the powerpoint of an anchor in a way that could produce anywhere near 20kn of load (even if they managed to arrange themselves in series so the load was dead parallel as in your diagram). Also keep in mind that the ring only sustains 2/3 of the load in this anchor configuration.
I still think a carabiner would be weaker and less secure in every imaginable way. Keep in mind that a biner's strength plumets when the load moves even a centimeter from its strong axis (represented by the indentations next to the spine, made by the 5mm steel pins of the testing aparatus).
There are a lot of things worth picking apart in an anchor rigging; I really don't think this is one of them (but if the ring keeps you up at night, you could always use 30kn or 50kn stainless ring).
(This post was edited by paulraphael on May 17, 2007, 6:51 PM)
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Edit Log:
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Post edited by paulraphael
() on May 17, 2007, 6:51 PM
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