Chest croll harness

[FiremanLyman]

Was wondering if anyone had some good ideas for modifying a class III harness with a chest croll.

Want to end up with something like the Petzel Navaho Bod Croll (hyperlinked), but don't like the price or the amount of padding around the chest.

Was thinking of attaching a croll to something like the Yates TR II harness (hyperlinked). Imagine that you could put the croll into the tri-link and then use a piece of webbing attached to the upper attachment point to position it.

Any ideas?

[TRT24]

Look at the yates rope access harness

http://www.yatesgear.com/rescue/industrial/images/lg/387BasicRopeAccessLG.jpg

You can see how thay attatch the croll to it. Contact Yates, they can tell you what sling they are using there.

[DCFDRescue2]

This might help you out:

http://www.cmcrescue.com/product.php?dept_id=20558

[MtnRsq]

It looks like Yates is using a sewn runner or dogbone typically used in climbing/caving applications. Girth hitch @ the top of the Croll and connected into the link.

Depending on mfg'r and material these are typically rated as low as about 10kN (~2300 lbf) to ~27kN (~6,000 lbf). Strong and low profile. These are sometimes used to extend connection points on harnesses.

Black Diamond, Bluewater, Sterling and others are good mfgrs. Definitely reach out to Yates. They would be happy to help you out.

[FiremanLyman]

Look at the yates rope access harness

http://www.yatesgear.com/rescue/industrial/images/lg/387BasicRopeAccessLG.jpg

You can see how thay attatch the croll to it. Contact Yates, they can tell you what sling they are using there.

That is exactly what I want to do. I was just wondering how to position the croll, that girth is perfect.

It looks like Yates is using a sewn runner or dogbone typically used in climbing/caving applications. Girth hitch @ the top of the Croll and connected into the link.

Depending on mfg'r and material these are typically rated as low as about 10kN (~2300 lbf) to ~27kN (~6,000 lbf). Strong and low profile. These are sometimes used to extend connection points on harnesses.

Black Diamond, Bluewater, Sterling and others are good mfgrs. Definitely reach out to Yates. They would be happy to help you out.

I will contact Yates, should have just started there, but was being lazy.

Other question, only because you quoted kN for the cord, would it really matter since the cord is only positioning the croll, not supporting weight?

[MtnRsq]

That is exactly what I want to do. I was just wondering how to position the croll, that girth is perfect.



I will contact Yates, should have just started there, but was being lazy.

Other question, only because you quoted kN for the cord, would it really matter since the cord is only positioning the croll, not supporting weight?

I read your post and looked at the picture again (this time on a 21" monitor vs. a small laptop) since, at first glance, it appeared the webbing was serving as a secondary/backup attachment between the link and the ring on the chest portion of the harness.

You are correct - it does appear that the sole purpose is for positioning.

I may be dating myself but the earliest Jumar ascenders sometimes developed cracks along the handle axis. The webbing provided some backup along the handle and also allowed for a soft connection to the Jumar.

Curious about your intended use(s). Caving or similar situations requiring long ascents?

[FiremanLyman]

Curious about your intended use(s). Caving or similar situations requiring long ascents?

Well, funny you mentioned caving. That is where this started, we got our hands on some of the Petzel Superavanti harnesses (here) and have rigged them for SRT with croll, handle ascenders and positioning devices. They are great to use for climbing rope but I am not convinced that they are good for rescue uses. So I am looking into turning a Class III harness into the same thing, rigged to do long ascents, transitions, etc... I want to present a rescue rated harness that will do the same thing.

[TRT24]

One thing to keep in mind about the long ascents with the croll and caving harnesses. Look at harnesses such as the Petzl Super Avanti and others designed for caving and you will notice the lower attatchment point. It tends to be closer to the hips rather than the waist. They are designed this way to get the maximum efficieny out of your ascending gear. This allows you to get more distance with each step. Also,the higher the croll sits, the more it will tend to flop around. In cave rescue, we use these harnesses all the time. I have many more hours of hang time in my caving harnesses than any class III harness, and have done countless pick-offs (training) and inverted in them too many times to remember. However, if you are top heavy, a caving harness is not your best choice, due to the lower attachment point.

[bottrigg]

As DCFD points out, the Yates harness in your link is Croll compatible. It's very easy to rig up.

[EricUlner]

My (biased) preference is for the RTR 390 Professional Tower/Rope Access Harness- http://www.yatesgear.com/rescue/indu...sses/index.htm
Croll works well with it.

[stickboy42]

Croll sling = 18" long 1/2" wide sewn sling with single twist. about $5 at most climbing shops.

[rmhinkle]

That petzl ascent is a good rig coupled with either of the croll upper harnesses. I would recommend using an omni biner to your master point of your harness not a tri-link. That omni gives you much more room for change overs and getting situated.