Yea compared to the reduced rating for the jammy. I guess prusik to prusik the jammy wins.
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8mm Oplux questions & uses
- Thread starter Tapeworm
- Start date
The ratchet is a loop. The stock jammy is a loop. the ratchet is just 6mm cord in a sewn loop with an extra plastic thingy. It's rated for progress capture i believe.
Are you going to use it as a prusik? I ordered one as well and that's my plan.
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Yes for my linemen/ tether. Im buying another to backup my decent.
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I went with the hollow block to back up my descent. Not sure why just wanted to try it.
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HTP is very stiff, great LB. The Oplux is much much more supple.
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With all this talk about the specific rating of jammy cordage with knots, I haven’t seen any other “Prusik cord” or accessory cord specs for comparison. In the climbing world, almost any 6-8mm accessory cord made by the climbing industry companies is used for friction hitches.
Specifically, does anyone know the rating for the 6.5mm Prusik that comes with a stock Tethrd LB and tether? With the knot? Certainly would be a good comparison. I wouldn’t automatically assume that it’s stronger than the 5.5mm Beal jammy. Bigger diameter doesn’t always mean stronger.
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Specifically, does anyone know the rating for the 6.5mm Prusik that comes with a stock Tethrd LB and tether? With the knot? Certainly would be a good comparison. I wouldn’t automatically assume that it’s stronger than the 5.5mm Beal jammy. Bigger diameter doesn’t always mean stronger.
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I thought the stock Prusik that comes from TETHRD is 8mm?
Edit: Looked on TETHRD site, maybe typo - says LB comes with 8mm and Tether with 6mm.
Edit: Looked on TETHRD site, maybe typo - says LB comes with 8mm and Tether with 6mm.
There's some subtlety regarding what climbers expect from prusik cord, vs what arborists expect from what I can tell - with us in the middle.
Yeah, I agree completely. Nothing wrong with being too safe, certainly better than the opposite. However, we do seem to take this to the extremes a little. With the exception of the one stick method, I can't envision a scenario with slack in the system. If that's the case then a truly fall rated piece of equipment might not even be necessary. Either way, these threads are healthy conversations, I'm glad we have a place to work through these things.
You're really at the most risk while using any of the methods that require a linemans belt which I believe we can all agree isn't a fall restraint at all. It helps prevent you from slipping but if/when you do the results vary greatly from slamming your face into the tree on one end and sliding to the bottom on the other end. Anyway, I digress.
Yes - it's on us to evaluate to what extent we need a fall arrest system (e.g. one sticking, standing in a pivot-platform, etc.) Vs a positioning aid.
Personally - I'm comfortable with lowering the spec of what I use some, if I keep it in mind the limitations and consciously avoid slack. i won't blindly use something "because climbers do" and I won't blindly discard something "because climbers/arborists won't). I will take the time to try to understand why one group or the other does or doesn't use something.
If I'm just gonna copy...I'll copy arborists who are closest to us with probably more restrictive requirements. If I bring in stuff from the canyoning/climbing world...I want to understand why one group uses it but another doesn't.
Weaker in the sense it should not be used for fall arrests. Most of what we do keeps tension on the line, so Ropeman 1 works fine.
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Just don’t exceed 4kn and run a friction backup and you’ll be fine.
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If you don't fall, everything works!
This thread is so confusing. What was the final verdict? Distel hitch has a reduced force rating with the jammy? What about a regular Prusik with uncut jammy?