Speedline shortening knot?

Hi all, I've got some speedlining to do in a week its been a couple of years since the advanced course and I can't remember which is the best shortening knot to fix up the middle pulley with, theres gonna be loads of tying and untying so the best ideas would be simple. I'm not sure if a sheepshank does it ok?

Sheepshank would work I think as it is a shortening knot but I don't get what you mean about the middle pulley?

In fact I don't know what you mean at all, but it is morning and I have a headache.

The middle pulley is where the tensioning takes place and the rope is fed through before being tied off, also where the section zipped out stops.

Not sure if I quite follow you, but I stick a prussic loop on the line to shorten and retension the line. Sorry I cant do fancy diagrams on here!

The middle pulley is where the tensioning takes place and the rope is fed through before being tied off, also where the section zipped out stops.

Please take some pictures when you do the speedline job, I would like to see your set up.

Hi all, I've got some speedlining to do in a week its been a couple of years since the advanced course and I can't remember which is the best shortening knot to fix up the middle pulley with, theres gonna be loads of tying and untying so the best ideas would be simple. I'm not sure if a sheepshank does it ok?

The words 'sheepshank' and 'speedline' should not be associated. The sheepshank is one of the worst knots ever invented and when it comes to tree rigging operations involving lowering loads or speedline a sheepshank has no place whatsoever. In fact the sheepshank has no place in treework and I doubt you'd find any serious treeworker that disagreed. It could be used in camping though - for guying up a tent.

Re Speedline Set-up

These might help you -

http://www.treebuzz.com/pdf/speedline_variations_1.pdf

http://www.treebuzz.com/pdf/speedline_variations2.pdf

The words 'sheepshank' and 'speedline' should not be associated. The sheepshank is one of the worst knots ever invented and when it comes to tree rigging operations involving lowering loads or speedline a sheepshank has no place whatsoever. In fact the sheepshank has no place in treework and I doubt you'd find any serious treeworker that disagreed. It could be used in camping though - for guying up a tent.

 

Re Speedline Set-up

 

These might help you -

 

http://www.treebuzz.com/pdf/speedline_variations_1.pdf

 

http://www.treebuzz.com/pdf/speedline_variations2.pdf

http://www.animatedknots.com/sheepshank/index.php

Shows and tells you all about the sheepshank! Couldnt agree more...

To secure a tarp or raise a tent its reasonable safe but for other purposes....NOT!

very good links:001_cool:

the knot I was using before wasnt a sheepshank but like it and tied off twice at the top and bottom? I dunno can't really remember. Prussik sounds like a simple idea that can allow you to slacken the speedline easily, will give it a go - don't know if the force of the piece hitting it will cause problems though?Thanks for the info guys.

Sheepshank would hold if you put a broom handle through the loops