930# failure in a whoopie sling. Failed at the exit of the adjustable bury.
930# failure in a whoopie sling. Failed at the exit of the adjustable bury.
What diameter is this my friend?
http://wesspur.com/throw-line/zing-it-throw-line.html lists dynaglide as 1.8mm and 1000 lb tensile strength.
That just seems too small of a diameter to be hanging from,does other people feel the sme?but at a 1000lb breaking strain it has to be safe for my measly 200lb.
I witnessed someone hang from it at over 300 and I am a believer. It is truly amazing.
“Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy
I think there are different diameters of dynaglide. The stuff I'm using is 2 or 2.2mm. Either that or there is a bit of disinformation out there on the diameters of the dynaglide.Originally Posted by stonecold
I was skeptical too, but it will hold the average hanger. I'm 270 and it holds me both in a gathered end hammock and my bridge.
I am reading all this info on suspesion and trying to take it in too quickly i think.
firstly what is the difference between Dynaglide, zing-it , and lash -it.
Would they all do the same jobs and can you make whoopie slings from them all?
Would i be better to make whoopie slings as opposeded to a double fishermans knot?
So many choices and decisisons ,but this kit is not easy to get in the Uk ,so i want to get the right thing.
I think maybe i asked too many questions there.
Lash it and zing it are the same thing. Lash it is gray and zing it is yellow. They both come in 1.75 & 2.2 mm versions. Yes it is spliceable, but I wouldn't reccomend it for suspension. They are made from dyneema fibers just like Amsteel.
Dynaglide is a another version of the Dyneema fiber, but pre stretched. It's also a 12 strand where the zing it and lash it are 8 strand.
The whoopie and double fishermans knot do not sere the same purpose. The double fish knot is good for making a loop of cord, or joining two lengths of rope. The whoopie sling is an adjustable length of rope that locks under tension at the length you leave it at.
One might think you ought to know if you're selling it, encouraging other people to hang on it.
As I understand it, a load of 200 in a hammock strung at 30° results in a load of 200 on each line. If the hammock is strung at 20° it's 292, and at 15° it's 386. I don't know how much load might be multiplied as one tosses and turns in the hammock but HMPE is not very elastic and it efficiently transmits any shock loading to the weakest point.
I also notice that the specs listed on the NER website appear to be wrong; i.e., it can weigh 1.5 g/m *or* have a breaking strength of 454 kg (1000 pounds), but not both.
In any case, NER (and Samson, &c.) recommend a minimum working load of 5:1 which yields, for a cord with a breaking strength of 1000, a limit of 200 assuming one *never* hangs at an angle less than 30°.
If y'all are hanging only a small distance above soft duff and don't mind a broken line then I suppose it's no big deal. I just hope no one gets hurt.
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