Anchor failure from girth-hitched Dyneema sling

Post by **Eric** » Thu Nov 02, 2006 1:50 pm

Apparently John Sherman recently had a part of his rappel anchor fail where he had girth-hitched a Mammut Dyneema sling to another sling. There is a long thread on this at Supertopo

http://www.supertopo.com/climbing/threa ... _id=269434

There was also some related testing of these super-thin slings that showed that they lose 1/3 of their strength after 2-3 years. They are only meant to be used for a short time. I didn't realize that Mammut was stating that.

Another reminder to make sure to eliminate any nylon-on-nylon in any anchor.

Post by **ynot** » Thu Nov 02, 2006 4:49 pm

see Reachigh, I told you I didn't like those skinny ass slings.

Post by **marathonmedic** » Thu Nov 02, 2006 5:32 pm

I seem to remember goodguy saying something similar about those ultralight draws, too.

Post by **dhoyne** » Fri Nov 03, 2006 9:03 am

ynot wrote:see Reachigh, I told you I didn't like those skinny ass slings.

What's an ass sling?

Post by **marathonmedic** » Fri Nov 03, 2006 11:37 am

It's that kinky-looking thing HoFo has in his garage.

Post by **Huggybone** » Fri Nov 03, 2006 5:49 pm

No, an ass sling is what you sit in on a long big wall. Duh!

Post by **marathonmedic** » Fri Nov 03, 2006 7:30 pm

that's called a harness

Post by **big_brother** » Mon Nov 06, 2006 2:30 pm

Who uses two rappel anchors? Sounds a little excessive to me.

Post by **ReachHigh** » Mon Nov 06, 2006 5:52 pm

ynot wrote:see Reachigh, I told you I didn't like those skinny ass slings.

But they are so light.

Post by **ynot** » Mon Nov 06, 2006 7:12 pm

So instead of girth hitching two slings around a tree to rap from, I used a biner. As soon as I got 20 feet down the rap,my partner yells "wait the gate is open!" Luckily I could climb up without letting go the brake. I went back to girth hitching.