for your "entertainement":
106483678_707974783359473_2668268262354866514_n.jpg
how should i put this nicely, ahem, "the dyneema held strong"? (i tried this line with the girlfriend while she was dusting off from the inevitable pieces of wall covering everything, she didn't seem amused).
entertainment aside, i found it very difficult in europe to find amsteel/samson dyneema products, all options seem to be either unreasonably pricey, or requiring import etc. the best option so far seems to be dyneema produced by a german company called "liros", it comes in various sizes and colors, and is easily available on amazon, which is pretty nice. there are issues though (see pic) :P.
- this stuff (i've mainly been using the 3mm variety) is very loosely woven (the angle of the braid is quite shallow), this means that splicing ucr's is frustrating (all sizing instructions you find here and elsewhere for amsteel result in ucr's which slide at about 1% or so of rated line strength), it is similar with whoopie slings, but i guess less severe due to their construction (though i dind't play so much with those, as i dislike the idea)
- it is really really slippery, from what i read around about what people do with amsteel and such, this is in a different league, my guess is because it is really pure dyneema fibers, with no coating whatsoever (in a way i like that, but it took a while to figure out how to make it work).
as preliminary/guideline info (until i find a way to do destructive testing on what i spliced out of this liros dyneema, as opposed to on the house):
- the burry length for the adjustable splice (ucr/whoopie sling) must be about 100xdiameters. if you want to test and prove me wrong, please do tell me what you found, but prepare to make a lot of soft shackles and continuous loops out of the too short burry sections you need to re-purpose (i'm becoming a soft shackle expert). if you want it to "just work", 30cm burry for 3mm line, and don't look back. sorry. (it does work very nicely then, see picture :/, i had a marker on the ucr, it didn't even budge. i wish i could say the same about the brick..)
- the free end of the ucr burry must be tensioned properly, i tested a few configurations (more on that in a different post, if anyone would be interested), in general a dependable friction hitch is required, good news is there's a way to integrate it very nicely in the whole design, and it can be made out of the same line if desired (so using a different thinner line is not a must)
in short: the liros dyneema can be used quite successfully, it just requires different sizing. i'm personally not bothered by the excessive length, when i need to go between very cozy trees, i will becket hitch the webbing to the hammock loop directly anyway, so a 10cm difference doesn't really matter.
has anybody else been using the liros dyneema? did you get similar results, or am i doing something wrong? i couldn't find any info about anybody using this stuff for hammock suspension (and trust me, i did look, after i melted my first ucr), this is why i finally decided to at least write a few words about it.
i would also like to ask the opinion of the many master splicers and riggers on here on something related to this: i am worried that, if the burry for an adjustable splice requires 100x instead of 72-74, the burry for a spliced loop would require a similar adjustment to retain full strength (so roughly 65x instead of 48x); now, i'm nowhere near to stressing this to the max (one metric ton does have the advantage of quite a bit of safety margin), but still, i'd like to know what i can rely on. destructive testing (joking aside) would be nice, but i don't have the means to pull test at such loads, and definitely don't have means to measure (no budget for load cells). yes, they do make a 1mm variant, yes i do have my eye on it, i'm just not..sure about the color.
for reference, the 3mm line (liros d-pro, often sold by "kanirope") is supposed to be dyneema sk78, 12* strand, pre-stretched, 950DaN mbs, spliceable. it goes for just under 1euro/m if bought in 100m rolls. * looking at the 3mm one i want to say "yeah right, like samson, in this diameter it must be 8 strand", i just counted it now, it is indeed 12.
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