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Lowering techniques help


Ste1993
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In the mid 90s they taught us to us a single rope, clove hitch nearest the trunk, then a half hitch further out reconnecting back to the line with a munters ( I think) tbh it didn't work well. Two slings sounds a lot better.

Out of curiosity why do you want it to come down flat?

 

I was taught with just the rigging rope, no slings :) slings are easier at times though

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In hindsight I think the half hitch was meant to slip to balance the limb, in those days we only used big three strand bull rope, which didn't slip. I never had much success with it. Much easier to rope it down in a few pieces.

Edited by Mick Dempsey
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ImageUploadedByArbtalk1445368043.835341.jpg.f5541aaf1ce7e139bbeae747214ad1e7.jpg

ImageUploadedByArbtalk1445368072.036186.jpg.60e752b5de3dc2add6c0e38cf13ac436.jpg

This is my cradle system , quick and easy to set and it's far easier than tip roping if your using a Hobbs /grcs type device for getting limbs off roofs or targets and you can take huge limbs out in one go rather than 2-3 bits you would of had to do tip or butt roping.

Interestingly We have been playing with this system lots on defective trees and it puts a lot less shock load than tip or butt tied ropes one example is after dismantling a whole tree on the cradle I butt roped one limb and it tore out the rigging anchor despite been about third the size of the average limb we had been taking out cradling.

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In the mid 90s they taught us to us a single rope, clove hitch nearest the trunk, then a half hitch further out reconnecting back to the line with a munters ( I think) tbh it didn't work well. Two slings sounds a lot better.

Out of curiosity why do you want it to come down flat?

Cheers for the help.

As mentioned before I have seen it been done and the branch seem to come down very under very good control instead of the end of the branch taking a nose dive

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Far easier to have a 2-3 metre length of rope with 1 end tied round your lowering line with a Blakes hitch which makes it very adjustable, problem with slings is if there too short they can effectively 3 way load your crab on the lowering line as the angle can be steep but with a longer rope section there is no crab and the angle can be shallower.

1445368942065.jpg.f44f190b2b4be5a002b6f68c9f6b6728.jpg

Edited by Gray git
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Yeah I did my 41 earlier on in the year and they still teach you to just to use the rope. 2 clove hitches spaced out along the branch , then back up to the rope and tie a bowline which forms a triangle.

In my ISA art & science rigging book it has a method of using a separate peace of rigging rope(say 7meters) running bowlines at each end on to the branch, the use a prussic loop in the middle of that peace of rope. Then you can find the perfect balancing point.

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