Static vs dynamic rope

[Scratch]

So last night I was playing around with a RADS setup and tried it out on both static and dynamic ropes. I found the dynamic rope to be, as expected, VERY inefficient. I can only imagine that climbing DRT would be extremely inefficient.

I know that there are static ropes that are more durable to last longer running over tree limbs, but is that the only reason arborists use static over dynamic or is there another reason I'm not thinking of?

 

[CanadianStan]

So last night I was playing around with a RADS setup and tried it out on both static and dynamic ropes. I found the dynamic rope to be, as expected, VERY inefficient. I can only imagine that climbing DRT would be extremely inefficient.

I know that there are static ropes that are more durable to last longer running over tree limbs, but is that the only reason arborists use static over dynamic or is there another reason I'm not thinking of?

Climbing on a dynamic system while work positioning gives a lot more softness and forgiveness.

On the flip side, climbing up SRS on a base anchored line can be pretty annoying. I recently climbed on a 150’ anchor, base anchored ... 300’ of rope in the system. Luckily we had KMIII because if we had dynamic rope I think I would have cried

One more note : we don’t use true dynamic rope in tree work. What we call dynamic is super static in the rock climbing world. Rock climbing dynamic denotes somewhere between 10-40% stretch during a fall. In tree work our dynamic ropes usually rope out around 5%

 

[SomethingWitty]

And likewise, our most static work positioning ropes are quite dynamic compared to the high-mod fibers that sailing and stage rigging employ more frequently than we do. And they should be. That little bit of stretch soaks up a lot of dynamic force.

I had a dynamic edelweiss rope that I climbed in a couple of trees with. It was kind of terrifying. I could just keep leaning against it and it would keep giving.