Im surprised they are calling it "climbing" rope with a number that low.
All in all I think its safe for hanging, however, at that number.
Type: Posts; User: opie
Im surprised they are calling it "climbing" rope with a number that low.
All in all I think its safe for hanging, however, at that number.
I believe you are correct on all your assertions other than the knot derate being cumulative.
At 30 degrees you are exerting 200 pounds on each end of your hammock. The steeper the angle the less force, the shallower the angle the more force and the force increases dramatically.
The reason...
Hard to find a climbing line that size with that rating based on a 10:1. About the best I can find is something around 11mm with a 770 pound WLL based on a 10:1.
That size line and with a 770...
If the CRO said the rope is rated at 770 pounds, assume this is a tensile figure with no margin factored in.
Imma do some googling real quick.
You are talking about safety margins. You need to ask the manufacturer if they factored in a margin and if so what it is. Otherwise assume the number they gave you is tensile and factor in your own...