“How not 2” video. 3 people prussicking + 2 people abseiling (separately 😱) on 1 rope.

Interesting that a 12" rack can be used to abseil down a loaded rope.
There is way of abseiling down a loaded rope with a Stop, I think, just that it's terrifying and dangerous because if the load is removed, you fall uncontrolled...

Abseiling down a loaded rope that becomes unloaded is always going to be a bad time, of course.
 
I was wondering how many 18v batteries needed, he did ascend fantastic (?), 586 foot / 179m
From the website.
“We were able to move a 200-300lb load for 400 feet with a 5.0Ah battery but you would get more umph for longer with an 8.0Ah.”

His “deep dive” video on the Z2

Definitely on my “wish list”
 
There is way of abseiling down a loaded rope with a Stop
In my somewhat limited experience it's theoretically possible but really difficult actually getting the descender on the rope and really difficult to actually descend.

You can make it easier to get the descender on by removing it from your harness and using it as a big lever to get the rope in.

I am in no desperate rush to attempt it again.
 
From the website.
“We were able to move a 200-300lb load for 400 feet with a 5.0Ah battery but you would get more umph for longer with an 8.0Ah.”

His “deep dive” video on the Z2

Definitely on my “wish list”
I had a play with a Z2 the other day nipping up and down some 11mm ropes in Cwmorthin and I was impressed. I'd been having purchase twinges for a while now and I'm pretty sure that I'll end up getting the Z3 when it gets CE approval. The ability to load the rope while the device is still on a carabiner and the cam-breaked descent control make it more appealing than the Z2R now. Mind you, the Z2R is smaller, lighter and cheaper.
 
Interesting that a 12" rack can be used to abseil down a loaded rope.
24" rack frame. It was exceptionally long.


There is way of abseiling down a loaded rope with a Stop, I think, just that it's terrifying and dangerous because if the load is removed, you fall uncontrolled...

Abseiling down a loaded rope that becomes unloaded is always going to be a bad time, of course.
Nice thing about being the 2nd guy though - there's someone below you to break your fall... :LOL:
 
Every time I see someone dropping a rock down a pot hole it makes me cringe. The story of Mabel Binks always springs to mind. I wish people wouldn't do it.
I'm not familiar with the incident that you refer to.

What's interesting about this video however, that I guess makes it a little better... They were at least communicating with radios top & bottom.

I follow one of the other blokes in the video on Instagram, who posted the "bottom" view of them dropping those rocks. The "biggest rock they could find" was reduced to dust on impact. In some ways, I'd rather they go ahead and film themselves dropping them all - that's less loose rocks to be hanging around, waiting to fall on someone else...
 
For those not familiar, they're recording in the famous "Fantastic" pit inside Ellison's cave in Georgia, USA. At 586' it's the deepest pit in the continental USA. Interestingly enough, there's two more rappels required before you get to this one - one of which, is 125' itself. On the "other side" of Ellison's is a 400' pit as well, and cross-over through-trips are possible.

There's been a couple rescues here, which is staggering to think about. A couple articles of a 2016 incident. One from the incident commander (Allen Padget) and another from an involved rescue caver/volunteer.


 
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