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healyje
Trad climber
Portland, Oregon
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Nov 14, 2015 - 04:39am PT
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From the picture, I'd say that's a relatively small amount of deflection for the distance so I suspect it's rigged quite tight. Still, compared to a wire over the same distance it would still feel sloppy.
The big challenge is that, at these distances, human body weight isn't sufficient to completely (or remotely) calm or 'settle' the line to a solitary point / line as happens when you're on a short line between a couple of trees. Instead, the line wants to randomly 'float' within a radius of some size which means that you now not only have to walk the line, you have to 'ride' it as well as it drifts about within that radius. The amplitude or size of that radius is smaller at each end and can be very significant out in the middle.
The need to not only walk, but also now ride the line, is the reason why high wire walkers use/used guylines, sandbags and poles - the pole stabilizes the walking and the guylines and sandbags attempt to eliminate / minimize the riding radius. To walk a long line like these guys are doing (without guylines, weights or a pole) is pretty amazing as it's no longer a 2-dimensional challenge, but a 3-dimensional one.
Below is a shot of Ivy Baldwin's rig (he was 82 at the time):
Nik Wallenda at the Grand Canyon on a modern unguyed equivalent:
Freddy Nock adding another dimension to the walk - gotta have some pretty good non-skid shoes, and hope there's no grease anywhere on the wire.
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nah000
climber
no/w/here
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Nov 14, 2015 - 04:53am PT
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anybody who looks at that last pic of COT's and doesn't feel something non-negative...
is already dead.
while i'm sure there is lots of bullshit surrounding the action, regarding the action itself:
wow.
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COT
climber
Door Number 3
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Nov 14, 2015 - 07:55am PT
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I was on the ground shooting some pictures of my friends climbing Fine Jade, so I don't know anything about the rigging. I briefly talked with one guy who helped set up the line and he told me it took a whole day to rig.
Here is a video I shot.
https://vimeo.com/145711058
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John M
climber
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Nov 14, 2015 - 10:30am PT
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I have no idea if this is a good idea or a bad idea with regards to the powers that be, but wow.
Thanks for the video COT. way cool.
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healyje
Trad climber
Portland, Oregon
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Nov 14, 2015 - 10:48am PT
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Great video, Not as tight as I would have guessed nor quite as tight as I would want it, but probably about what they could manage over that distance.
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Lurkingtard
climber
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Nov 14, 2015 - 11:29am PT
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That's a lot of sag! Damn!!! That's in the 5.15 realm of highlines.
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Bad Climber
climber
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Nov 14, 2015 - 11:34am PT
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Wow, the mental strain of that walk is hard to imagine. Awesome--the the legitimate sense of that word.
BAd
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Spider Savage
Mountain climber
The shaggy fringe of Los Angeles
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Nov 14, 2015 - 01:08pm PT
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Glad to see a thread on this. I've been watching it unfold on Facebook.
Super cool. Renan is there with a drone.
Yes he notified local pilots and air control.
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limpingcrab
Trad climber
the middle of CA
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Nov 14, 2015 - 01:22pm PT
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Renan posted on Instagram that the main line is at 1.2 kN (270 lbs) standing tension.
I would have guessed a line that long would have much more?
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healyje
Trad climber
Portland, Oregon
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Nov 15, 2015 - 02:20am PT
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270 isn't much, would be curious to know what the deal was. So did anyone make it across without a fall?
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pyro
Big Wall climber
Calabasas
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Nov 15, 2015 - 08:14am PT
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incredible!
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healyje
Trad climber
Portland, Oregon
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Nov 15, 2015 - 03:56pm PT
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Ah! Thanks for that link to Renan's site. Now I see what's going on. From the perspective of where COTS first photo is taken you can't tell the real angle of deflection of the line which is quite apparent in Renan's instagram photo which is accompanied by this commenet:
renan_ozturk: One of the things I learned about modern high lines recently is that you don't tension them super tight anymore. That way the oscillations created by your movements don't turn into monstrous waves that buck you off the line
So yeah, that's the trade-off, make it as tight as I'd probably like and you'd need a pole to walk it over that distance. They're keeping the tensioning next to non-existent in order to try and preserve as much of the 'native' slackline feel as possible and eliminate at least some of the float . Makes sense, but I can't say I'd much like the feel of a rig like that, but then I don't walk webbing but rather hard-cranked down 10.5 climbing rope which is more like walking on a bow string than a slackline.
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TREED
Trad climber
Gunks
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Nov 15, 2015 - 05:39pm PT
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Has anyone figured out the forces involved in 1600' of webbing?
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karodrinker
Trad climber
San Jose, CA
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Nov 15, 2015 - 06:37pm PT
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Did anyone send it?
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kunlun_shan
Mountain climber
SF, CA
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Nov 18, 2015 - 07:38pm PT
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^ Beautiful video! TFPU!
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Jaybro
Social climber
Wolf City, Wyoming
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Nov 23, 2015 - 01:05pm PT
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Anyone have details on the (helicopter) rescue of the climbers who mistakenly rapped on their bolts and got benighted?
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Trashman
Trad climber
SLC
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Nov 23, 2015 - 01:26pm PT
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The one unexpected upshot to the growth as climbing is the greatly foreshortened amount of time before one gets to see the fruit of their predictions. Less than a year for the first fatality from the rope swing yahoos at Corona, now less than a month for unintended consequences from these clowns.
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CAC
Gym climber
Clairemont
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Nov 23, 2015 - 01:51pm PT
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Wow, impressive. Love the choice of music on the video as well, soundtrack from that movie is one of the best ever. Not to mention the movie itself is one of the best ever...
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SC seagoat
Trad climber
Santa Cruz, Moab, A sailboat, or some time zone
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Nov 23, 2015 - 03:00pm PT
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Driving by there today. Just amazing.
View from heading up into the LaSals
Susan
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