hangin by a single thread!

Cereal_Killer said:
The bombing on the crane ball from straight up bucket is much less force on the rope than the swing was.
It is all impressive. Scarry to think about the forces but impressive to watch... I do similar crane tie in bombing every now and then when the opportunity presents, wouldn't dare a swing like that on arborist rope though (maybe on dynamic mountaineering rope if the tie in was sufficiently protected)!
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I believe he said he was using a 9.3MM Mammut rope. Without doing any research, all I do know is that Mammut makes mountaineering equipment etc.... What is your take on the forces from the tower crane swing? It looked like before takeoff his system was taught, and there appears to be little if any “shock” to the system. I imagine that at each cycle of the pendulum the rope gets subjected to a “shock” or stretch, but if it’s dynamic sport rope....., IDK now I’m just rambling... interesting discussion no less....
 
I never saw anything where he said what rope it was but I know he often uses 8mm rope for TRT cause both strands fit the OG runner so that's what I thought it was, IDK if 9.3 would fit two strands in the runner. If you saw something where he specified I'm not disputing that but my assumption was its 8mm.

I would guess from the bottom point of the pendulum up to the apex would be the greatest force but I'm not a physicist or fall factor expert. I bet there's guys on mountainproject that could shed some light on the forces experienced, big ass swings are becoming more of a thing now days.
 
Cereal_Killer said:
I never saw anything where he said what rope it was but I know he often uses 8mm rope for TRT cause both strands fit the OG runner so that's what I thought it was, IDK if 9.3 would fit two strands in the runner. If you saw something where he specified I'm not disputing that but my assumption was its 8mm.

I would guess from the bottom point of the pendulum up to the apex would be the greatest force but I'm not a physicist or fall factor expert. I bet there's guys on mountainproject that could shed some light on the forces experienced, big ass swings are becoming more of a thing now days.
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I believe some rope twisting happened in or near the bird on the runner from other comments I’ve heard. It’s possible that if that happened all the weight was on one of the lines. Although he was still safe as it turned out with one line fully intact, and the core exposed but not severed on the other line.
-AJ
 
Cereal_Killer said:
He didn't go into specific detail (it seemed like it was an emotional post) but this is what he said- "I created TRT and used it for the crane swing, the shock from the swing was so much that it almost broke the rope showing the core of one of the lines. That's life"
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Thanks for posting this. It's nice to know Johnny Pro is still around and posting somewhere. It's too bad that he chose to take down his twin rope technique video. It explained things well. Maybe someone on Instagram could convince him to put it back up. Tim.
 
Solo Arbol said:
That has been why I have been avoiding it during a job. I think that I have been screwing myself up trying to meddle with so many different combinations.. but in a way that has also shown me a few that I like. The Knut has been good, and the VT has been alright for me more often than not. I started with the 5' tester pack from wessspur so i have been able to adjust the lengths. Im having a fine time with hitchcord on my MRS. I appreciate all of the advice and extra mantras from all of you. this forum is a very positive thing for people who are trying to become better and most importantly safer. I didnt want to end up like a lot of climbers i see who are old and reckless and doing things extremely basic. Even though I am amazed by them quite often.
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First of all, thank you for sharing your issue with all of us. Sometimes just saying something and hearing other perspectives can really help with that discomfort.

As for lugging around a bunch of gear that is not regularly used, those are thoughts that we all carry right along with our bulging gear bag thanks to Treebay and our favorite tree supplier. Welcome to the club. My van is a veritable rolling showroom for shiny gear and 90 percent of the time I climb on an old Lockjack in a DDRT system with a friction saver. Why? Because I am comfortable, efficient, and effective with it. Like you, I don’t like to experiment on the job site with new gear that I am not comfortable with. Occasionally I will try new things but usually I stick with what I know and slowly incorporate those new tools into the toolbox. But often, I learn those tools, and then put them back in the box and go with what I have found to be the most effective and efficient way for me to climb which often is DDRT. Does that make me an “old school climber”? I hardly think so. I do what works best for the situations I am presented with and what makes me feel most comfortable and efficient. Sticking with a dogma of a technique won’t make you as well rounded of a climber as if you embrace the diversity of all techniques and tools at your disposal.

Do what works for you and slowly incorporate the tools you need to make you comfortable, safer, and more efficient in the trees that you regularly work and you will find the sweet spot so you can enjoy yourself in the trees and have a long healthy career.
 
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