Reg
ArboristSite Operative
Reg I had been thinking about getting set up for a speed line and was wondering how would you go about speedlining the trunk wood? I have lots of rope, cmi pulley, loopie sling, one block, one eyed sling, and a micro pulley( if that could be used) also have the grcs. Should I get a small pulley with a swivel and a bunch of slings and clips? I also just work with one guy so having a haulback I think is a good idea
Ricky, the pine video highlighted relatively light branches conveyed out of a pretty sturdy tree. Assuming you can’t run the line down from an adjacent tree, then the set-up for working a spar would be similar, except the equipment would have to be more heavy-duty to deal with the extra fall-forces incurred....also, the control line would be be directly tied to the logs as in conventional blocking. The speed-line-pulley-sling is also attached to the log
Obviously you need to keep the log-size to a minimal. The speed-line ought to be loose but to the side of the logs fall path, while the control-line arrests the log over some distance, same as in conventional blocking. After the log is brought to a halt, the speed-line is tensioned to raise the load above the obstacles you’re trying to clear. The control line is then gradually released so the log is conveyed down to the landing.
While Speed-lines can be a great labour saving technique, they can also be a momentous gear-intensive waste of time, where little or no advantage is gained by their application. You need height, a strong rigging-point and the need to convey a load considerably further than what could otherwise be achieved with a pull line….otherwise it’s probably not worth messing with! Thanks