tying an eye in rigging line

[Maui Palm & Tree Care]

i like knotless rigging. all it takes is one double braid splice on the end of your ine and a steel carabiner or quick link. its easy and faster for groundys to unhook slings then it is to untie bowlines all day.

 

[Frax]

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That is a cool knot, Nora -- aka ABOK 153, Artillery Loop. It's long been a rigging knot favored by many. However, it should be said, Moray did some testing on it two years ago and found it to be directional. That is, it works great in one direction but, under extreme load, jams in the other direction. I forget which direction. Maybe Moray will chime-in and re-post his test results.

EDIT: Ashley also called it a "Man-Harness Knot", which might be a better name considering the comments of your cameraman.

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Thanks Jack! the Ashley Book has been something on my wish list for ages. I suppose then, that it matters which side you start the braid on, relative to the direction that the forces are going to be on the rope.
We've used it to winch the fertilizer set up into the back of a pick-up which is pretty heavy, and it did not slip, but I've not used it with any heavy wood. Something to consider especially if there woulsd be any dynamic loading I'm sure.

I've also learned some people call this the alpine braid (papillon tresse), 3-loop or triple bowline, and yes, as mentioned by Norm, it seems to be the same as the circus bowline too.

 

[JTree]

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There is a cool knot almost like an alpine butterfly that I don't know the name of. I've heard it called a 'blackwater'. But it is better because it neither slips nor binds so it is easy to remove even after loading.
I'll see if I can find an image or a vid.


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Circus bowline?

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Not sure. It may very well be a well-known knot by a different name. I learned it from Dwayne Neustater. I made a short vid to show it.

http://youtu.be/g1a604ztgrY

And I totally get that this doesn't answer the initial question, but it's a cool knot to know anyway.

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ROFL. Seriously though, neat 'lil knot.

 

[knudeNoggin]

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Ian, if you are usng a block that can be opened, then try a <u>double fishermans knot</u>. Remember that it is hard to untie after loading but will come apart easily if it can be slid off the sheve before untying.

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I assume you mean what's also called a "barrel hitch"
which I call a "strangle noose" (the strangle knot
--a binder-- being one of the opposed components of the
(end-2-end joint) double fish. . One could *guard* this
potentially jamming knot with an extra (full) turn of the
noose around the object, and a half-hitch preceding the
strangle (to soak up some force).

Rather than a 3-eye bowline, a simpler solution would be to
just tie a 2nd eye for the bowline with the tail, finishing
it just as one did the first --yielding 2 eyes, 2 collars
around the mainline, and 4 diameters through the knot's
central compressing loop.

For some devices --i.p., for a 'biner-- doubling up the rope
through it can actually weaken the device, as it puts force
away from the main axis. For the block, this likely isn't
a concern; getting some extra material to share the pressure
could be.

*kN*

 

[knudeNoggin]

There is an interesting, butterfly-like mid-line eyeknot presented
here : ]http://igkt.net/sm/index.php?topic=3827.0
that resembles Ashley's #1408 end-2-end knot.
With the butterfly/lineman's loop, it is possible that heavy loading
of the knot qua eyeknot (i.e., with one end slack, eye loaded and pulled
by other end), the collar that surrounds the unloaded end will be hauled
very tight snug to the knot, jamming.

In this 1408-like knot, if one arranges that the loaded end is the one
with the doubled collar, the knot should not jam, as that other collar
isn't directly loaded.

*kN*