ascender are safe enough

Ciao Sergio!

Good to see you back on the buzz! /forum/images/graemlins/smile.gif

TDR is certainly one of the lowest stretch ways to access a tree - similar but simpler than the Mar bar set up. And having two cams and two lines it is safe.

I also remember us using it with a pantin instead of footlocking.

I just find it much easier and quicker to access with a single rope in the Tree frog system these days. Its certainly more ergonomic and energy efficient than hauling through the shoulders. But there aren't many harnesses that can be used with a chest ascender that also have an effective sliding D attachment for work positioning. I can think of only two, the Petzl variobelt and the Treeflex.

When I get to the top, I just unclip the ascender and wrap it round my waist. If I need it again its there in a flash.When I'm rigging a pole, its a great self tending back up with no slack when spiking back up. Also, I wear it when standing on spurs to take the weight of a big saw through the shoulders. Both ascenders can be easily attched to self tend, so closly branched trees can be freeclimbed. Without any slack to increase fall forces.

Double ascenders used on a doubled line are a recipe for disaster as far as I'm concerned - there are too many reports of near misses and worse. And I have witnessed it in a comp first hand. Backing up both lines effectively can be a headache. Why not use TDR or SRT with two ascenders?

These needless accidents in Europe will cause the safety Nazis to force twin line and anchor systems without a 'reasonably practicable' clause. We don't really NEED that. /forum/images/graemlins/frown.gif
 
Sergio,

I think that you missed my tongue in cheek arrogance, not meant to be snobbish by any means :) DdRT access went by the wayside years ago during my quest for the perfect SRT system. I'm not talking-down footlocking either. Depending on the height of the access point I change my SRT system. Now that I'm working in a city with very tall trees it will be rare that I'll do much footlock access climbs though.

I do like the TDR concept a lot. It makes as much, or more, sense in treework as it does for rock climbing.
 
hey Sergio
I don't think it's so stupid go to the productors and ask for a tool back uped and built for this cause in Italy as you know there problem with the insurance if you modify a tool by yourself....
so if Kong Petzl or whatever built and sell a tool like double ascenders with back up included and special for tree work will be better for us...
 
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hey Sergio
cause in Italy as you know there problem with the insurance if you modify a tool by yourself....


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Hello "semprebene",
The tool doesn't have to be modified, it just must be backed up, like all toothed ascenders in the history of rope access.
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Hi Mark,
tieing in the tail of you rope into itself it's just one way of installing a TDR. You could also use two ropes of different lenghs or have the middle of a rope permanently attached to the end of another one, so that system is always ready to be used.
TDR is meant ONLY for footlock lovers on the lazy side who, like me, like to use ascenders (for meditation breaks on the way up). If one insists on installing a doubled rope over a single branch, all one has to do -instead of trying to modify the tool- is to use a prusik.
Personally, being very lazy, I'll continue to use ascenders but it doesn't make any sense to be using two ropes already and still need a further backup just because I decided to render my ropes dependent on each other (and lost ten minutes with the throwbag to achieve that).
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Hello Tom,
I didn't want to be rude. It's just that sometimes you look like a SRT priest... /forum/images/graemlins/grin.gif
TDR in fact incorporates all the installation advantages (and safety standards) of SRT.

Sergio
 
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I do like the TDR concept a lot. It makes as much, or more, sense in treework as it does for rock climbing.


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Hello again Tom.
What does that means???
 
I think he means two seperate ropes for security instead of one. Although the way we tie it, we are still only anchored with one rope.
 
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