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Beginners climbing guide, hints, tips and general climbing techniques


Adam Bourne

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....I know drt is slower because of the 1/2 ratio (distance traveled / ropepull) but is also easier. At the end also depends on the size of the tree and the time you have....

 

Some things to keep in mind. DdRT is not an ascent system, it is a work positioning system that has been overly used for ascending. The mechanical advantage in a DdRT system is optimized when utilised with arm power but wastes energy when utilised with leg power, compared to an SRT system. Think of trying to get somewhere on a bicycle while it is stuck in a very low gear. Your legs are moving furiously but your not getting anywhere fast.

 

Size of tree and time should be less of a factor than most people think. Like bending over at the waist to pick up wood will eventually cause problems, even if that wood is not particularly heavy, so too, doing 4 small trees will have you covering the same vertical distance as doing one large tree. The wear on your body will be the same.

 

In most trees, there is not an obvious speed advantage when using one over the other. So instead, use the system that is most efficient at accomplishing what needs doing and don't limit your choices through lack of proficiency in available systems.

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Some things to keep in mind. DdRT is not an ascent system, it is a work positioning system that has been overly used for ascending. The mechanical advantage in a DdRT system is optimized when utilised with arm power but wastes energy when utilised with leg power, compared to an SRT system. Think of trying to get somewhere on a bicycle while it is stuck in a very low gear. Your legs are moving furiously but your not getting anywhere fast.

 

.

 

That sums it up nicely, DdRT is good if used correctly and unfortunately it is a poor ascent system, hence my earlier comments on the o-rig which I still think of as nothing more than a slick trick to use DdRT well you got to plan your climbs and avoid excessive arm hauling by using the tree to your advantage for me hitch redirecting helped by saving me having to ascend through forks which is horrible in DdRT.

 

I have used SRT though for many years as an access system so would always be at the top of the tree with minimal effort and start my climbs from there in DdRT working down and once in the crown use that to your advantage.

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Some things to keep in mind. DdRT is not an ascent system, it is a work positioning system that has been overly used for ascending. The mechanical advantage in a DdRT system is optimized when utilised with arm power but wastes energy when utilised with leg power, compared to an SRT system. Think of trying to get somewhere on a bicycle while it is stuck in a very low gear. Your legs are moving furiously but your not getting anywhere fast.

 

Size of tree and time should be less of a factor than most people think. Like bending over at the waist to pick up wood will eventually cause problems, even if that wood is not particularly heavy, so too, doing 4 small trees will have you covering the same vertical distance as doing one large tree. The wear on your body will be the same.

 

In most trees, there is not an obvious speed advantage when using one over the other. So instead, use the system that is most efficient at accomplishing what needs doing and don't limit your choices through lack of proficiency in available systems.

 

I'm kind of recreational climber, doing some occasional small tree work, I apologise for writing something misinformed/wrong. I think I'm missing a couple of factors there :001_smile: still learning, a bit gear limited tho.

 

btw, some dumb questions I have, seems the right thread.

It's about care and storage. For instance, a small rope used for lanyard with a prussic and a distel with pulleys, and a fishermen's in each end with a carabiner, for storage should I untie all the knots? frition hitches and termination knots? It's ok to hang the harness in a dry place with the lanyard hanging on there "ready to work"? ty in advance.

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