So I have lots of 3' and 6' polyester roundsling s, but I really need a couple of ~9' footers to wrap a certain piece. No problem, just "tie" them together end-to-end right? It's harder to explain than to demonstrate, but what one ends up with is basically a square knot. Just with no dead-ends.
Now someone told me I had to derate due to the square knot. Interwebs says effeciary of a square knot is ~45%. So I take my 5300 lb. Spanset, multiply it by 0.45 and get 2385 lb. Is that right? Does it matter if it's Gac-flex? I think it's actually stronger than a normal square knot, in that all four ends are being pulled equally. Yes/no?
Professionals please refrain for one week. Thank you.
Now someone told me I had to derate due to the square knot. Interwebs says effeciary of a square knot is ~45%. So I take my 5300 lb. Spanset, multiply it by 0.45 and get 2385 lb. Is that right? Does it matter if it's Gac-flex? I think it's actually stronger than a normal square knot, in that all four ends are being pulled equally. Yes/no?
Professionals please refrain for one week. Thank you.