by benjydaniel » Mon Aug 16, 2010 4:59 am
by DanTheMan » Mon Aug 16, 2010 3:42 pm
benjydaniel wrote:Does anybody, or has anybody ever ascended webbing? is it possible and are there ascenders made to do that?
by nartreb » Mon Aug 16, 2010 4:01 pm
by brenta » Mon Aug 16, 2010 4:59 pm
bcknfrth wrote:Webbing isn't good at resisting abrasion? What kind of webbing are you using?
by b. » Mon Aug 16, 2010 6:27 pm
brenta wrote:bcknfrth wrote:Webbing isn't good at resisting abrasion? What kind of webbing are you using?
http://www.xmission.com/~tmoyer/testing/Qualifying_a_Rescue_Rope.pdf
by Autoxfil » Mon Aug 16, 2010 6:39 pm
What kind of webbing are you using? We use ropes of kernmantle construction because the core is protected by the sheath, which isn't needed for strength. Webbing has the load bearing fibers on the outside. Ever try to cut a string with a knife without putting it under tension? That's like cutting a rope sheath, because the tension is (mostly) in the core - not easy. Now, if you pull it tight and drag it across the edge - it cuts easily. That's what happens when you cut webbing.bcknfrth wrote:nartreb wrote:It's probably a bad idea though. Webbing isn't very good at resisting abrasion, and jugging up is a good way to repeatedly rub it, weighted, over some little corner in the rock.
Webbing isn't good at resisting abrasion? What kind of webbing are you using?
by fatdad » Mon Aug 16, 2010 6:58 pm
by MoapaPk » Mon Aug 16, 2010 7:03 pm
Autoxfil wrote:What kind of webbing are you using? We use ropes of kernmantle construction because the core is protected by the sheath, which isn't needed for strength. Webbing has the load bearing fibers on the outside. Ever try to cut a string with a knife without putting it under tension? That's like cutting a rope sheath, because the tension is (mostly) in the core - not easy. Now, if you pull it tight and drag it across the edge - it cuts easily. That's what happens when you cut webbing.bcknfrth wrote:nartreb wrote:It's probably a bad idea though. Webbing isn't very good at resisting abrasion, and jugging up is a good way to repeatedly rub it, weighted, over some little corner in the rock.
Webbing isn't good at resisting abrasion? What kind of webbing are you using?
by DanTheMan » Mon Aug 16, 2010 8:53 pm
MoapaPk wrote:Autoxfil wrote:What kind of webbing are you using? We use ropes of kernmantle construction because the core is protected by the sheath, which isn't needed for strength. Webbing has the load bearing fibers on the outside. Ever try to cut a string with a knife without putting it under tension? That's like cutting a rope sheath, because the tension is (mostly) in the core - not easy. Now, if you pull it tight and drag it across the edge - it cuts easily. That's what happens when you cut webbing.bcknfrth wrote:nartreb wrote:It's probably a bad idea though. Webbing isn't very good at resisting abrasion, and jugging up is a good way to repeatedly rub it, weighted, over some little corner in the rock.
Webbing isn't good at resisting abrasion? What kind of webbing are you using?
The webbing is probably lying flat for the abrasion test as well, exposing a lot more of the load-bearing fibers.
I have some 9/16" webbing slings that date back to the 80's, and they don't seem abraded at all. It's all in the use.
I think the toothed-gear (ascender) approach may do relatively little abrasion on webbing. They have been using webbing in some come-alongs, and in strap clamps, for some time, using a toothed-gear to hold the place. I think some rescue folks like to put ascenders on webbing.
That said, webbing sucks for traditional ascent via prussik or klemheist. Initially it is too slippery, then when it cinches up, you can actually melt the outside with the heat produced. I've seen it cut nearly through when draped over a "sharp" surface (in this case the fire-hardened edge of a bristlecone log).
Continuing an earlier suggestion:
"The Ropeman Mk3 has new shape of cam and new forged side plates make it easy to place on ropes between 7.7 and 11mm and can be used with both nylon slings and ropes. It's use on tape means that it's use on belays is more adaptable, allowing adjustment on belay slings quick and safe. This will be a big hit with guides and those involved in rescue. "
It strikes me that they are not using the ascender for ascending on webbing, but as part of the belay system, as a rope clamp.
by Augie Medina » Mon Aug 16, 2010 9:06 pm
benjydaniel wrote:Does anybody, or has anybody ever ascended webbing? is it possible and are there ascenders made to do that?
by benjydaniel » Fri Sep 10, 2010 4:35 am
Mountain Impulse wrote:benjydaniel wrote:Does anybody, or has anybody ever ascended webbing? is it possible and are there ascenders made to do that?
Why do you ask? That might help get you a direct, suitable answer.
by benjydaniel » Fri Sep 10, 2010 4:39 am
fatdad wrote:OK folks. Young, inexperienced climber asking for some information when it's clear he probably needs some instruction and/or proper equipment. Let's not enable someone on what could be an ill-advised quest.
by Autoxfil » Fri Sep 10, 2010 3:42 pm
by Augie Medina » Fri Sep 10, 2010 7:33 pm
Autoxfil wrote:The speed and safety gained from a rope are very much worth the weight.
Drop down to an 8 or 9mm static line to save weight and bulk. Just keep it well away from sharp edges and buy ascenders that grip it well.
by Rick Kent » Fri Sep 10, 2010 9:10 pm
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