SRT on a Hair-Trigger. (Can an old dog learn a new trick?)

[matamorph]

This is THE smoothest RW/(whatever) combo I have found (...in my bag,) to date! but apart from the issue suggested by the title, can anyone see a potential problem with this setup,
...other than shortening/neatening-up that long, asymmetric, tether!...and a regular change of pants?:

I can't find any info on the Mk 1 (or 2) in this configuration.

 

[Dave Rohach]

This is completely Wicked! I've never seen anything like it. Where would you get the idea of marrying these components? I'm absolutely blown away, by the ingenuity needed to create a device so COOL! [emoji41]I just love your idea.

 

[SoftBankHawks]

That should never be used as a main system, the tolerances of the Positioner will not handle it.
Seeing the CE lanyard Sirius it looks like you are setting this up as a sub system, is that correct?

 

[matamorph]

Thats just an ART Positioner attached to a Wrench. No? I soiled my britches just thinking about that!!! You must drop like a stone. What about a ART Lockjack/Wrench combo instead? Might be a little more controllable.

Yip!! ...It's just that!!

I've found, in my limited experience with the lock jack, (only a couple of ground based tests) that it's equally uncontrollable as the positioner. Maybe I'm wrong. I don't own one, or know a climber who does so I can't say ...or test. Anyone? I'de be interested to know.

 

[matamorph]

You have a good eye

The CE was just for demonstration purposes, and garage rafter tests.

And thanks. That's just the kind of response I hoped for. "Don't do that. That would be stupid... " kind of thing.

...But wait a minute, what do you mean by "...not as a primary system" and "... not within the tolerances of the positioner"? Lanyards are used on a daily bases as 'temporary' "primary systems, and the positioner has passed all tests in this function, and from what I understand, there isn't any upper limit to the length of a lanyard. So, combined with a rope wrench which MORE than halves* the force on the positioner as in a double rope system, putting things well within the limits of the thing, no?

* in fact, the shorts-filling quick release of the positioner actually makes for an instant, and reliable engagement of the wrench!


Are you actually saying that the positioner was never safe in the first place?.... Or that using it like this forces the wrench out of its comfort zone??

...I want a second opinion.

 

[matamorph]

This is completely Wicked! I've never seen anything like it. Where would you get the idea of marrying these components? I'm absolutely blown away, by the ingenuity needed to create a device so COOL! [emoji41]I just love your idea.

...is that sarcasm?

I live and work in the south of France, it's hard to tell anymore

...if not, thanks dude! ... if yes, thanks dude...

 

[matamorph]

I climb on a Lockjack frequently, and once you get past the learning curve is very controllable. My brief experience with the Positioner leads me to believe it might be a sketchy ride in your set-up! I would say you keep at it and see if you can make it work. It would be a cool, simple set-up if you can tame it.

Chuck on a wrench and keep me posted!

 

[Dave Rohach]

I honestly think it's ingenious, but I would wet my pants on a descent! I don't normally use sarcasm when I'm on the forum, it's our lives on the line everyday! If it's not a humorous thread. Then I'm sincerely serious! Be Safe with your new setup! Shout out and let me know how it works for you!
Respectfully; Dave6390

 

[matamorph]

I honestly think it's ingenious, but I would wet my pants on a descent! I don't normally use sarcasm when I'm on the forum, it's our lives on the line everyday! If it's not a humorous thread. Then I'm sincerely serious! Be Safe with your new setup! Shout out and let me know how it works for you!
Respectfully; Dave6390

Thanks a lot! I to take my life, and that of those around me, VERY SERIOUSLY!

The truth is: that positioner was inherited from the climber who occupied my job before me, and is completely "uninsureable". It occupies the tail end of my 2nd backup lanyard, only ever used as a third point of attachment. Very very very rarely used... If ever. Never would I bomb out of a tree on this thing!
I only intended this as a thought experiment. To get the opinion of those who understand the tools, physics... and risks.

Climb safe

...but climb!

 

[Dave Rohach]

[emoji106], every day that I can!

 

[matamorph]

...how about this then?...



..effectively turning the positioner into a pulley!

...


It's a shame.

Maybe it's time to put the old dog to 'sleep'

...before it bites me in the ass!

 

[96coal449]

It's like the zz and wrench combo. Only the zz offers more friction and more control of engaging or disengaging it. The positioner is kinda on or off without much inbetween. I have a black wr and a new positioner on the shelf. That would be a slick looking combo. The prusik deletes a need for the positioner. Id rather have a pulley. Positioner would make an excellent "fail safe" though.

 

[SoftBankHawks]

You have a good eye

The CE was just for demonstration purposes, and garage rafter tests.

And thanks. That's just the kind of response I hoped for. "Don't do that. That would be stupid... " kind of thing.

...But wait a minute, what do you mean by "...not as a primary system" and "... not within the tolerances of the positioner"? Lanyards are used on a daily bases as 'temporary' "primary systems, and the positioner has passed all tests in this function, and from what I understand, there isn't any upper limit to the length of a lanyard. So, combined with a rope wrench which MORE than halves* the force on the positioner as in a double rope system, putting things well within the limits of the thing, no?

* in fact, the shorts-filling quick release of the positioner actually makes for an instant, and reliable engagement of the wrench!


Are you actually saying that the positioner was never safe in the first place?.... Or that using it like this forces the wrench out of its comfort zone??

...I want a second opinion.

When a lanyard becomes a Primary it rarely has to deal with vertical descents/ascents and the complex loading of a bonafide climbing belay.
The function of the Rope Wrench means that a grey zone exists between engaged and disengaged. If you slipped off a branch it would be the Positioner taking the brunt of the force, no question about that.
Your system can descend, I tried it many years ago, though this doesn't mean it has worth. On my sub system I don't bother with the wrench any more because I found the angles I was rigging to didnt require any force to be taken off the hitch.
Off course the Positioner is safe and I love mine ! You can find all the standards that it has been tested too, piggybacking gear above it for vertical descents is not one if them.

 

[Danimal]

I came across this old post, and wanted to share this idea with you guys.

 

[Jehinten]

I came across this old post, and wanted to share this idea with you guys.

Just curious, with my positioner on my lanyard. on occasion when I want to ascend on my lanyard a few feet, I'll clip in my foot ascender and I have found that the positioner will not grab with the line being weighted below the device. Are you finding that with this setup, or do you climb with something besides foot ascenders?

 

[Danimal]

Just curious, with my positioner on my lanyard. on occasion when I want to ascend on my lanyard a few feet, I'll clip in my foot ascender and I have found that the positioner will not grab with the line being weighted below the device. Are you finding that with this setup, or do you climb with something besides foot ascenders?

I currently use two positioners on a 20’ -two way lanyard I also use foot ascenders. I’m very familiar with what you are talking about, the device needs to bend into the rope to grab when you are putting a straight pull on the climbing line the device with slide up and down freely until you bend/weight the line. I used the Lockjack as a lanyard positioner for a hot minute and it sucked because of just this. Using the jack as a multicender with a bend point above the device, I’m not running into this issue.