Frog ascending with climbing harness

[mountain man]

Looked around and couldn't find an answer anyware. Figure I'd post this dumb question here.

Can a frog ascending system, like a Petzl Croll ascender, be used with a climbing harness?

[rcwild]

Can a frog ascending system, like a Petzl Croll ascender, be used with a climbing harness?

Yes. No problem. You just need suspenders, like the Petzl Torse, to hold the Croll in place.

[mountain man]

Yes. No problem. You just need suspenders, like the Petzl Torse, to hold the Croll in place.

Thank you Rich. I've looked for the longest time for a reasonable answer. This is what I figured. Thought as long as you attach the croll low on the harness that it would work(maybe not into the belay loop directly but through the hip and leg loop).

Next question I couldn't find an answer for.
OK, how about a climbing self belay with a Croll on a climbing harness?

[rcwild]

Thank you Rich. I've looked for the longest time for a reasonable answer. This is what I figured. Thought as long as you attach the croll low on the harness that it would work(maybe not into the belay loop directly but through the hip and leg loop).

You are correct about wanting it mounted a bit low. I connect my Croll to my Petzl Canyon harness with a quick link instead of a carabiner to save a few inches.


Next question I couldn't find an answer for.
OK, how about a climbing self belay with a Croll on a climbing harness?

I've never tried it, but it should work. Be careful to make sure the rope stays in the Croll. The cam requires two steps to release, but still conceivable if it rubs against the rock.

[rcwild]

... and ... hang some weight (i.e. backpack) at the end of the rope, suspended just off the ground so you don't have to hold the rope below the Croll as you move up.

[dancrev]

Next question I couldn't find an answer for.
OK, how about a climbing self belay with a Croll on a climbing harness?
Maybe I'm paranoid, but I try not to put too much impulse on the Croll when I'm using it to climb. I maybe shift my weight to it over a period of a second - maybe a bit less. Catching a fall it would get the weight all at once... I'm just not comfortable doing that on a device with teeth.

[rcwild]

Maybe I'm paranoid, but I try not to put too much impulse on the Croll when I'm using it to climb. I maybe shift my weight to it over a period of a second - maybe a bit less. Catching a fall it would get the weight all at once... I'm just not comfortable doing that on a device with teeth.

That's why I suggested weighting the end of the rope. Important to make sure the Croll keeps moving up the rope with zero slack.

[dancrev]

That's why I suggested weighting the end of the rope. Important to make sure the Croll keeps moving up the rope with zero slack.
I think(?) what I wrote applies to the zero slack case. Even with zero slack the device has to catch your weight all at once (granted that is a worst case fall). The effect of slack would be to make those forces greater than your weight, which would be even worse! Is it that the spring loading allows the teeth to always be set properly, provided there is some tension from the hanging weight eliminating slack?

[thafen]

That's why I suggested weighting the end of the rope. Important to make sure the Croll keeps moving up the rope with zero slack.
Just so I haven't over-figured it, is that to eliminate any fall factor?:fishing:

[rcwild]

I must be slipping. Should have started my original reply with "It depends ..."

In this instance, on the climber's ability to maintain zero slack. Depending on the climb ... probably impossible to maintain zero slack. Safer to use something like a Shunt instead of a Croll.

Wonder how the system in this video would work for self-belay. Seems like the VT would do a good job absorbing impact.

vLWLfZSwdH4

[DJ Meding]

... and ... hang some weight (i.e. backpack) at the end of the rope, suspended just off the ground so you don't have to hold the rope below the Croll as you move up.

Proper frogging technique is to pinch the rope between your feet as you push up. This keeps the rope taught and allows you to have both hands free to work overhead.

Yes I was out with cavers again last weekend and we did a lot of ascending. Estimate is about 750 total feet frogged up over a four day period.

[cookiecutter]

Wonder how the system in this video would work for self-belay. Seems like the VT would do a good job absorbing impact.

vLWLfZSwdH4

Not sure if this is exactly right, but here is a video with roughly the same type of set up. I can imagine taking this set up and rigging it in place of the croll on a frog ascent. Seems to work nicely

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