Jump to content

Log in or register to remove this advert

Long ascents


Recommended Posts

Log in or register to remove this advert

  • Replies 37
  • Created
  • Last Reply

Top Posters In This Topic

Not to derailq too much but on along the same lines has anyone else made a stiff leg tether like the one timberwolf 190 made? I had a go at making one with a croll but was too bulky, really like the idea of having something you could wear on the other leg that you wouldn't notice whilst moving round like the way you hardly notice the pantin:)

Link to comment
Share on other sites

toothed ascenders are tested to be 4kn strong and 4kn without damaging the rope and you cant bail out, RW RR, uni HH are all options that are loads stronger, wont damage the rope so readily and you can bail out. some "purpose designed" access lines, particularly the double braided ones are actually among the worst performing when it comes to drop testing toothed ascenders on them

 

this vid involves big drops but not unrealistically so :

 

so 16s was one of the best! surprised? i was

 

anyways, personally frog walker on a RR, RW or uni, loving the RR though!

 

so thats a pantin followed by one of the above with an elastic neck loop (which i actually route like braces over both shoulders secured to the top of the back of my tree motion) followed by an ascender with a footloop being used solely as an aid

Edited by explorer arb
cliked send by mistake
Link to comment
Share on other sites

The only problem with a hand ascender and footloop, in conjunction with a rope wrench setup is that the rw setup doesnt self tend, so when you step up on the footloop you have to kick a little extra loop of slack through with the pantin..

Link to comment
Share on other sites

toothed ascenders are tested to be 4kn strong and 4kn without damaging the rope and you cant bail out, RW RR, uni HH are all options that are loads stronger, wont damage the rope so readily and you can bail out. some "purpose designed" access lines, particularly the double braided ones are actually among the worst performing when it comes to drop testing toothed ascenders on them

 

this vid involves big drops but not unrealistically so :

 

so 16s was one of the best! surprised? i was

 

anyways, personally frog walker on a RR, RW or uni, loving the RR though!

 

so thats a pantin followed by one of the above with an elastic neck loop (which i actually route like braces over both shoulders secured to the top of the back of my tree motion) followed by an ascender with a footloop being used solely as an aid

 

Why was 16s one of the best? What were the forces involved were they reduced by having the ascendor slip? If tied into a high anchor instead of a stout lower limb would that of failed first? What about different toothed ascendor designs like Kong Futura or Black diamond nForce how would these react in similar scenario? It looked to me that forces above 4kn we're being achieved yet the ascendor did not fail why was that?

How would other devices like the HH RW RR or Uni respond in this test, would there lack of slip/cut/shred translate to more force on the climber?

Edited by Marc
Link to comment
Share on other sites

its 4kn without breaking or breaking the rope, they did break the rope. The uni has been put to similar drop tests before, the results were much more encouraging. The wrench has also been extensively drop tested and preforms much better. We would aim for a low peak load of course but whilst slippage may reduce the PL it also increases the chance of us striking a limb on the way down. The FA BSEN limits PL to 6kn and slippage to 1m. They are not designed to take dynamic loads. If your anchor is 100% bommer then cool, but how can we be so sure? do binoculars show us all we need to see?

 

a few years ago people would use hitches above their ascender as a back up, now there are better alternatives why not use them?

 

with all you questions mark maybe you should conduct some of your own tests? then share your results with us on AT?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


  •  

  • Featured Adverts

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.