Yo-Yo (RADS) for working?

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...The RADS is better in that in an emergency you can descend as fast as you need to, without any concern of burn through on a hitch.

...So, while the RADS might not be the best, most efficient ascending system, it has other benefits...

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Right on! A friend of mine got caught in a bunch of bees and had many stings which turned out to be very serious.

Of course DDRT has a rapid escape as well, provided that you have enough rope to reach the ground. Just imagine running out of rope before you reach the ground - you're at the end of your rope, you can't do a pitch without climbing back up some which would be very time consuming, you could possibly do something with your lanyard to get down, but that would be time consuming also.

Since RADS is a single rope technique, unless you are higher than your rope is long, which isn't likely, you should always be able to escape and reach the ground.

Another benefit of RADS, is you only need half the rope to do the same thing you'd do on DDRT.
 
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Another benefit of RADS, is you only need half the rope to do the same thing you'd do on DDRT.

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I think this depends on your anchor point.
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Another benefit of RADS, is you only need half the rope to do the same thing you'd do on DDRT.

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I think this depends on your anchor point.
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That's true. I was thinking about a DDRT setting on a given limb vs a cinched limb RADS setting on the same limb.

If a ground anchor is required, that would pretty much eliminate DDRT anyway.
 
I was going to post about a climb today, but it fits here, as I used a single line in a neighbouring tree to access a dead cedar and chunk it down. It was only a 50' TIP, and I only had to get up 40' or so, so I ascended with RADS, but with the pantin overtop my spurs. Got high enough, swung over and sank hooks into dead cedar and chunk away, just left the pantin on. (made me think about a 'clip' for the pantin on the spurs, but that's way to nerdy. . ) The 2:1 advantage, or whatever it is, with RADs, is handy and easy to adjust your weight and balance, especially in a dead top.

I have brought spurs up and put them on after ascending a 'safety' tree, then swung over to a target tree with them on, but on a Ddrt.

I use RADS lots for work, but for longer ascents you need to use something else to get up there - I will 'treefrog' up, then switch to a RADS to manouver through the tree.

I use the Eddy, and not had any problems until recently, where a section of my Tachyon has gotten some sap embedded in the fibres and it gets stuck them cam. Have to fiddle with it to get it loose. The rope is still a tad too big for the Eddy I figure, at least when its dirty. (PI is more than tad too big)
 
Re: RADS for working? Self tending tether...

Get out some Pine Sol and cleanup the sap booger, you'll be happier.

On my RADS I use a Shunt with a tether to make it self-tending. The shoelace tether can be adjusted to any length that is convenient. For ascent I like it a bit longer. For working I shorten it a few inches to keep it even more in-reach.
 

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Re: RADS with self-tending tether

The lower part...currently I use an Eddy rather than a Grigri or I'd.

I've taken several first time climbers up with this setup and it is THE most intuitive climbing system that I've ever taught. The motions all move the climber up the rope. Also, the climber controls the ascent descent very easily.
 

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Re: RADS with self-tending tether

I think I get your set-up, the shunt comes down with you as you descend? (with the self tending tether?) I need to understand this. . . What about going up? I can't picture it without a hand ascender up there to grab onto and advance. Do you use a pantin to ascend?
I agree, its the most intuitive way to climb a rope and access a tree.
 
Re: RADS with self-tending tether

There is a way to palm the Shunt and push it up the rope similar to a handled ascender. Of course...keep gloves, hair and loose flaps of skin away from pinch points. I've already done the mental engineering on a handle that would bolt onto the Shunt using the through bolt at the bottom. Since the Shunt isn't part of life support I wouldn't have any problem with modifying the design.

A Pantin could be use but it really doesn't work well with RADS I've found. To keep the picture clear I didn't put in the adjustable foot strap that clips in.

Since I use a Unicender I really don't spend much time on RADS unless I take a new climber up.

The same setup could be made using a friction hitch with a slack tender on top of the friction hitch. When the climber descends the slack tender pulls the FH down.
 
Re: RADS with self-tending tether

Just to note, if you are doing a limb walk or something that requires you to return to your previous position, you can remove the teather at your harness attachment. Leaving the shunt/pulley provides a longer mechanical advantage "take up".
 
Re: RADS with self-tending tether

OOPS,

If you release the harness attachment be sure to have a fairlead for the tail of your rope! Don't want to lose that.
 
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