Knots in rigging lines.

[High Scale]

If you haven't got a spliced eye in your rigging rope and you want to, say, lower multiple branches using slings and krabs (As a example), what termination knot would you normally use?

[FJR]

For multiple branches at once you could use a slipknot with a biner. Use a running bowline or clove hitch at the end of the rope and the slipknots in the middle. I wouldn't take anything too heavy though. Usually when your doing that many branches its lighter stuff anyways.

[High Scale]

OK but what about heavy loads, what knot then?

[Mr Ed]

usually I use a running bowline, or a timberhitch. If lowering off multiple limbs, I'll use clove hitches then terminate with a bowline.

[A_lopa]

A perfection loop,Doesnt afect the breaking strain as much as a bowline...

[High Scale]

A perfection loop,Doesnt afect the breaking strain as much as a bowline...

 

Do you have a pic of that?

[High Scale]

I will often tie a figure of eight and use a krab, (steel) and slings as I find it quicker and easier for me and the groundsman/women.

 

Thing is, it's a real pig to untie after repeated loading.

 

If it's a real heavy load I just use the rope.

[A_lopa]

http://www.arboristsite.com/attachment.php?attachmentid=36771&d=1154665946

[High Scale]

Figure of eight is 70% efficient according to my book, what's the efficiency of the Perfection loop?

[TreeCo]

OK but what about heavy loads, what knot then?

 

I don't do multiple limbs if heavy loads are involved.

 

What I have done is to use a running bowline for the bottom limb.......and just clip into the line for higher limbs and let them slide down the line until they hit the bottom limb.

 

I've also used a bowline with a fairly big loop and snapped in multiple biners, then cut.