Adjustable Friction Saver

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I made a choker of the same design once to use in place of a whoopie sling but I stopped using it after considering the lesser strength of the design.

I would expect this setup to slip if shock loaded in some situations.

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would that be a terrible thing? wouldnt it help absorb the shock a bit better?
 
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Why not just a regular adjusting FS? Like a lanyard.

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Because I've seen plenty of those. I'd never heard of a "whoopie saver." Thought I'd try it out. I still haven't climbed on it.
 
Check out the avatar. Simple and to the point. Happy to break it down. Works for me when needed without much of a problem. Its nice to have that advantage knowing it is available if wanted. Two figure eights and some rope and away we go. See attachment..
 

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[ QUOTE ]
I made a choker of the same design once to use in place of a whoopie sling but I stopped using it after considering the lesser strength of the design.

I would expect this setup to slip if shock loaded in some situations.

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I've made several for rigging and crane work. I knew at times they would be shock loaded, so I did a 2 fid bury. The only time I experienced slippage was during crane work while hoisting. One backsplice slipped into the bury about 2 inches. I think if the backsplice was not there, the end woulda pulled through.
I don't make or use em anymore.
For Cory's application (life support), it's absolutely worth testing. Hook in up to a dyno and see what it slips at.
 
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Check out the avatar. Simple and to the point. Happy to break it down. Works for me when needed without much of a problem. Its nice to have that advantage knowing it is available if wanted. Two figure eights and some rope and away we go. See attachment..

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thats a boat anchor......heck no
 
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Why not just a regular adjusting FS? Like a lanyard.

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Because I've seen plenty of those. I'd never heard of a "whoopie saver." Thought I'd try it out. I still haven't climbed on it.

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It's really not a 'whoopie'. A whoopie has a fixed eye and an adjustable eye. When the adjustable eye is loaded, there are 2 parts of line that share the load. What you made is an adjustable length sling. A single part line takes the load.
 
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Check out the avatar. Simple and to the point. Happy to break it down. Works for me when needed without much of a problem. Its nice to have that advantage knowing it is available if wanted. Two figure eights and some rope and away we go. See attachment..

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thats a boat anchor......heck no

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Nice of you to fine some useful application....
 
I'll bet that there are plenty of F8's looking for work. That is a great use for two of them Robert.

My first FC was made by cutting apart F8 to get the two rings. Spliced three strand Safety Blue and made a four footer. Right now that FC is hanging from the iron beam in my storage unit so that I can hang a rope at any time to figure out some configuration. I would NOT recommend cutting apart a F8 because it is likely not strong enough
 
Thanks Tom.

Originally thats where the two ring friction saver came from according to Ken Palmer back in 93'. I figured out the part where you put the figure eights inside of a end line loop and install it in the tree from the ground.

One nice feature is that it can be retrieved by pulling on either side. Once you pull the climbing line out of the two rings it can be pulled out of the tree crotch with either the left hand rope or the right hand rope.

I realize that not ever technique is right for everybody so pick and choose as needed, where needed.
 

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Robert;

Is that really a stir-up hitch if the loop doesn't go back inside/through itself? Seems like it's just an end-line loop in this application.

Nice use of the stir-up hitch in the re-direct thread.

I'd still like to get any background info on the stir-up hitch that you might have.

Thanks!
cool.gif
 
Mahk,

Your right my wrong. Getting techniques confused. Along with terminology.

I use the Stir-up hitch when I install from the ground my static retrievable false crotch with the climbing line set in a pulley.

The only bit of info I have regarding the Stir-up hitch I got from some old Davey material. It was used to form a false crotch to help in estabishing a tie in point when performing a single stem rescue. The person doing the rescue would climb past the injuried climber and install the stir-up hitch above and then tie in to the loop. It was stressed in the reading material to come down very slowly so as to not burn the rope.

Robert
 
The origin of the ring/ring false crotch is in Europe. There were several homemade versions and a couple of companies manufacturing them.

I'll bet that it would be cheaper to buy some small F8s to make FCs like Roberts than to buy the rings. Girth hitch them onto a webbing sling and off you go! Cheap and functional.
 
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I'd never heard of a "whoopie saver."

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It's really not a 'whoopie'. A whoopie has a fixed eye and an adjustable eye. When the adjustable eye is loaded, there are 2 parts of line that share the load. What you made is an adjustable length sling. A single part line takes the load.

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Aww come on, Norm. Its a snappy name and you know it! Rich liked it.
 
I have never liked the idea of a two-ringed AFC in my climbing system. I use my AFC primarily for removals and it is inefficient to have to untie/unclip my climbing line every time I need to reposition the AFC.

I put a steel locking carabiner on one side as the large ring. That way all that I have to do to reposition the AFC is unclip the ‘biner and make the adjustment.
 
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