Getting back from a limb walk.

Drewtree

Branched out member
Location
Toronto
Recent convert from DRT, how do you guys get back in from long limb walks? Pulling on one leg of a DRT system was how I did it before.. how I do it now is I use a sling on a carabiner near my last redirect and clip my tail through it to create a 2:1, keep the tail with me and haul myself back in when I'm done.

Any other options? Trying to expand the toolbox.
 
Often times I just bail and swing to the trunk. It's usually only 5-10 feet of lost elevation and it's faster. If it feels precarious I might drop off the limb, letting myself down to a better angle with my unattached lanyard, then swing over.
 
Recent convert from DRT, how do you guys get back in from long limb walks? Pulling on one leg of a DRT system was how I did it before.. how I do it now is I use a sling on a carabiner near my last redirect and clip my tail through it to create a 2:1, keep the tail with me and haul myself back in when I'm done.

Any other options? Trying to expand the toolbox.
That technique is the true way to manage all slack while advancing back in from the limb. Only thing is, there's an almost infinite number of ways to set it up.

If you cannot unweight your line to create the config, you'll want a tiny ascender or a thimble prusik/biner. I personally would choose a Teufelberger OV6 Thimble Prusik and Wire Gate Revolver. I do realize that "quick"
Is "key", but my feeling is a bit more related to safety...it's totally possible to set up an ascender in a clear area, but I want to be certain that as I change location through my work that nothing with teeth is getting pressed against a limb. The rope on rope is very forgiving in that scenario and I don't consider it a problem.

If you can unweight your line, the cleanest kit is a biner such as a Petzl William HMS alone. Open the gate and put 3 wraps of climb line above your Rope Wrench around the spine of the William, then lay in the fall of line from below the Rope Wrench. Keep your tail with you, of course.

The nice thing about the biner alone is that you can set it up once for a series of limb walks as you work down one side of the crown. After the work is done, just unweight your system and pull on both legs of the tail and the biner will pull right back to you for removal.

I have to thank THE Rich Hattier for showing me this trick. @CutHighnLetFly posted a quick vid of this a good while ago, too.

Ramble done...Cheers, and welcome to the Rad World of SRWP!
 
What is the M.A. in these type of setups?
It's a 3:1, but that becomes even higher when your part of the system. DdRT would be a 1:1 if someone else is trying to lift you from "outside" the system.

The SRT haul back is a 3:1 for someone lifting you from outside the system, so it's probably more like 6:1??? When you're lifting yourself with a 3:1???

Great question, Levi. I'll have to ponder it a bit more but that's my knee jerk response.
 
Although I suppose you could consider it as a 2:1 basket multiplied by the 2:1 DDRT factor but I still think we are talking 4:1. Only way we can really be sure is to go measure the amount of rope we use to move 1 ft.
 
If I were a tree climber;) and I had setup up this haul-back system to pull myself back towards my primary anchor, 2' closer, I would need to pull 4' of tail through the pulley affixed to my stationary rope above my climbing system.
 
https://en.wikipedia.org/wiki/Mechanical_advantage
If you scroll about 2/3 down this page, you will see the "block and tackle" section. The first example in the illustration, the "gun tackle" is what we're dealing with here. Or no?

No. The gun tackle is a 2:1 if you are standing on the ground pulling. It is a 3:1 when you are pulling and also moving as part of the system. A fixed overhead block will offer no mechanical advantage if you use it to lift a load but becomes a 2:1 if you are the load.
 
I just did the simple experiment, if I am a climber using this system and I raise myself 2' I will have pulled 4' of tail through the pulley.
 

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