/ Single rope abseiling
In France last week I watched a guy ab using a single rope (not doubled over) and a 'knot' that was placed at the bolts. The 'knot' held his weight during the ab but came undone - very neatly - when given a sharp tug after he'd finished his abseil. In this way he would have been able to ab for distances of greater than 25 m using just one 50 m rope.
Does anyone know of a 'knot' that can be used to do this?
Watching this guy ab peaked my curiosity.
Are you sure he wasn't using a tagline? (An equal length of thin cord that doesn't bear any weight of the abseiler, but can be tugged to release the rope)
If not, I've never heard of this method and it sounds very scary!
I didn't see a tagline. I thought it rather ballsy at the time.
A Kamikaze knot??
> A Kamikaze knot??
Good name. I think I'm going to try to forget that knot so I'm never ever tempted to use it!
He does say that you have 90% chance of dying if you try it.
Pierre Alain used to propose for sale a gadget that allowed single rope abseiling. It was a spring loaded hook device which worked like the elasticated fifi mentioned just above, as soon as you got to the bottom and took the weight off the rope the hook sprang of the abseil point.
It was pretty expensive but I don't think that was why he didn't sell many :-)
Ze Saxon Cross? Arrrgghhh!
you didnt mean this did ya:
tie a loop in the middle of the rope
with one end: thread the anchor and the middle loop
pull it tight to the anchor.
the end you threaded is your ab side, the other your retrieval.
Remember to remove your stopper and to make sure your on the right side.
you can do similar with a running slippery hitch, more advanced would be the Macrame rappel
and you can have a look at cambium savers.
What do ya think?
NO... You saw a technical advisor set up for the cretin to then lie to the camera about.
> Pierre Alain used to propose for sale a gadget that allowed single rope abseiling. It was a spring loaded hook device which worked like the elasticated fifi mentioned just above, as soon as you got to the bottom and took the weight off the rope the hook sprang of the abseil point.
> It was pretty expensive but I don't think that was why he didn't sell many :-)
Ah yes, the Decrocheur Allain http://lh4.ggpht.com/_HZMYfs1ZHeo/SSCDr2BM6EI/AAAAAAAAA2Q/wRj_VTzl6NM/P1050491.JPG .
After weighting the rappel, you pulled on the little cord, which unlocked the hook, which thereafter remained in place only by virtue of tension in the rappel line. When you unweighted the rappel, the hook sprang open and the device fell the length of the rappel and clocked you in the head. Additional note to self: do not momentarily unweight rappel on an intermediate ledge.
There's the method from the venerable Ashley Book of knots,
And here is a video of the fifi hook trick done for real.
Oooh, I like the look of the Kamakazi Knot!!! That was the sort of thing that happened: the guy abed off the cliff, he reached the bottom, he pulled/yanked the rope, the knot came undone and the rope was retrieved. Pretty cool, but pretty dangerous. :)
> I watched it and felt ill. Do we have any proof he made it to the bottom alive?
I think they would have recorded that as well if it happened.
Seriously though, how many accidents as a result of this method?
Not that it is recommended, but because it is so obviously dangerous he was probably being very careful.
We are often only one silly mistake from a disaster. Take care or use systems that have some element of redundancy. A lot of modern techniques and situations don't.
This technique is kind the opposite of redundancy. Redundancy enables you to survive unless everything goes wrong. Here you survive if everything goes right.
exactly, with a bit of luck thrown in
It works fine but only with Elven Rope :-)
The semi static I use for that kind of thing is so stiff that you have to push the rope through the belay plate if you ab on it doubled. It's just about right on a single strand.
Tends to be a figure of eight with plenty of tail and tons of redundancy in the anchor for me at the top though. No way you would catch me doing anything like the OP described.
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