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Thanks.

 

Dave, it was a leaner so the only option was to tip the logs towards the driveway. BD couldn't have helped really.

 

Yes there is some video to follow, haven't looked at it yet but it'll no doubt give a truer sense of impact-loading than what the photo's do.

 

Stevie, it all takes time, although I wasn't aware how long. Beech is unforgiving, and you cant always cut smaller because you need to be sure your lines are going to bite, snag and hold the wood when it folds. Obviously I'd much sooner stick to single-line-rigging, and can for most jobs. But Cycles-to-Failure is real, when you get into big wood there is no room for chance. Thanks again.

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Hi Reg,

 

Another text book set of pictures! I am interested to know the brand/size of rope/pulley in use and your predicted cycles to failure for the parts in the system. Only if you have time.

 

Doug

 

Sorry Doug, too much liability in regards to gear and CTF, not even if you paid me. I could easily quote other people on the matter, but I dont think thts what you're asking. Some very well written and easy to understand articles on Paolo's site: Arborist research and training: ergonomics, tree rigging, climbing equipment , and of course there's the HSE rigging research which is free to download.

 

FYI the Lowering lines are Yale Polydyne 5/8; Yale double esterlon 3/4 slings; and the blue ISC 3/4 block. If you do a little research on the equipment, weights and fall factors you'll soon be able to make your own mind up. Sorry I cant help on line, but I'll be at the AA show if you want to ask me anything in person. Thanks again

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