Quote:
Originally Posted by Brion Toss
Hi again,
Another lovely variation, and it might hold promise. But the issue in this case is not strength, but security. The reason for the long bury is that HM fibers are very slick (most knots crawl out of them), so it takes a long bury to generate ultimate friction. I have pulled apart short-buried splices at relatively low loads, in tests, and have heard of them failing in the field.
The Diamond Knot-based soft shackle is weak only relatively; it is still far stronger than a comparably heavy/expensive stainless shackle, as well as being soft. Toggled versions of the soft shackle exist, and they are fast and strong...
Fair leads,
Brion Toss
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I tested a scale version using 1/8 inch Amsteel with a 23 diameter bury. I used a double loop of old 3/8 yacht braid at first to simulate the eye splices but the yacht braid broke in the test. I switched to a single loop of new 1/2 inch 12 strand poly line. I pulled until the stopper loop around the clew broke at the diamond knot. There was no slippage in the buried splice loop.
Here is a video of the test. I was going to repeat it with a stronger stopper loop but my jack seems to have failed from the last test.
Allen