3:1 Haulback System

I think it's when you go on a limb walk srt and you put an accender with a clip or some type of midline anchor on your line before you go out, then clip your line in to create the three to one advantage for ease when returning... I've been confused too when I've heard it used recently but that's my guess
 
Choke a spar with a running bowline Yosemite finish, carabiner in your splice eye. Take the tail of your line, run it through the Biner, descend. When you get to where you want to be, pull both legs of line and the whole thing 'retrieves'.
Does that make sense? Might need a pic or diagram.
I think that's it
 
JontreeHI said:
Choke a spar with a running bowline Yosemite finish, carabiner in your splice eye. Take the tail of your line, run it through the Biner, descend. When you get to where you want to be, pull both legs of line and the whole thing 'retrieves'.
Does that make sense? Might need a pic or diagram.
I think that's it
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Thanks Jon, yeah I understand that. Just not sure I understand the 3:1 part in that scenario.
 
Maybe it's talking just about the advantage on returning from a limb walk, not what I described. I guess what I described mimics a 3:1 but no advantage is actually required to retrieve. Hopefully someone smarter than me will chime in soon
 
Someone mentioned using a Prussic an pulley over an ascender an a Biner on another thread. I started that an it's had it's advantages
 
I got the u saver false croth. But once I went srt I used it less so I took the Prussic cord with rig pulley attached to it off and tie a six coil three wrap Prussic to my line and use that instead of the ascender with a Biner for the haul back . It's a little less awkward on my saddle. Plus it has a little more versatility for other applications
 
It's actually one of those perceived 3:1 things, because you're the load, which throws off the math. That aside, the way to determine mechanical advantage is to count the legs of working line in the system. There are a few cool ways to set up the MA haul back.

Rich Hattier taught me a really cool one that is midline attachable and also retrievable. Use a large HMS style 'biner (such as a Petzl William). You'll need to unweight your line enough to install it above your multiscender [EDIT; install the 'biner inverted, or wide side down]. Put about three turns around the major axis, followed by installing your tail. When it's loaded up properly, the turns will coil nice and tightly around the spine of the 'biner. You'll also want an accessory 'biner on your saddle to keep the tail with you as you head out. For return, you simply keep your weight in the system and pull the tail to haul yourself up. The cool thing about this is if you want to retrieve the 'biner from a remote location, all you have to do is unweight your system and pull on the two legs of your tail (the one going up from your pulley and the one coming down from the 'biner).

I also really like to use a thimble loop and wire gate revolver, since I often find myself in a position where I don't want to unweight my mainline. This installs almost easier than the 'biner trick, but it isn't remotely retrievable. I also use the thimble loop to connect to my sling/'biner for static redirects. Nice thing is you can incorporate the revolver into the redirect at that point as well, so I more often use that trick.

The time I use the 3:1 is when I'm going to work downward and outward into delicate areas for end weight reduction, or just when I'm really trying to maintain interior growth so I can't just swing to plumb and blast up 1:1, etc...

The more you play with it, the easier it gets (to use and to setup), and the less you'll feel like skipping it. It's also great on a spar for retrieval of your cinch. If you're tied on with a Running Bowline, just put a 'biner onto the Bowline eye and put your tail into the 'biner. Descend and position for the next cut, unweight your mainline and pull down on the two legs of tail and you're good to go.
 
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Jem4417 said:
I think it's when you go on a limb walk srt and you put an accender with a clip or some type of midline anchor on your line before you go out, then clip your line in to create the three to one advantage for ease when returning... I've been confused too when I've heard it used recently but that's my guess
Click to expand...
thanks. looks like you were right.
 
WaitakKauri said:
Oceans describes this really well. If you want to see returning from a limb walk sSRT with MA, here are two vids......
Click to expand...
Thanks for the vids. Perfect examples...and to think I'd seen both of them already. :rolleyes: Apparently I was speed-watching them (like speed reading) and missed those parts.

To be fair, I knew of the technique, I just never heard it called the 3:1 haulback but it makes perfect sense now. Basically a temporary RADS system.
 
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