'Melting' Adjustable Grip Hitch (AGH)

[Mobius]

I decided to trial the security of a bowline today by trying to 'tow' a parked car I tied one rope end as a bowline variant (mine) and the other end was a standard AGH. The trial on my bowline went well, however the gripping power of an AGH is what I was most impressed by: I snugged the AGH nub, however I deliberately left it away from the u-bolt. It stayed where I positioned it and it tightened so much as to start 'melting' some rope threads together after load.

Without wanting to break my rope (or damage my car) one would think there was a reasonably high amount of rope tension generated during my trial. I untied both knots quite easily, though the final twist of the AGH was a little stuck together.

Cheers,

mobius

[roo]

I decided to trial the security of a bowline today by trying to 'tow' a parked car I tied one rope end as a bowline variant (mine) and the other end was a standard AGH. The trial on my bowline went well, however the gripping power of an AGH is what I was most impressed by: I snugged the AGH nub, however I deliberately left it away from the u-bolt. It stayed where I positioned it and it tightened so much as to start 'melting' some rope threads together after load.

Without wanting to break my rope (or damage my car) one would think there was a reasonably high amount of rope tension generated during my trial. I untied both knots quite easily, though the final twist of the AGH was a little stuck together.

Cheers,

mobius

What may have been happening is that the sliding part of the hitch may have slipped slightly under high load.  With more slippery rope, the effect may have been more obvious.  It's a good reason to choose more solid connections for such an application.
 

[Mobius]

What may have been happening is that the sliding part of the hitch may have slipped slightly under high load.  With more slippery rope, the effect may have been more obvious.  It's a good reason to choose more solid connections for such an application.

Yes, perhaps you are right. My trial was far from scientific and though the AGH appeared not to move after I snugged it, it may well have settled a bit and created a lot of friction in doing so. That such a simple hitch like the AGH worked as well as it did impressed me. I tried the AGH a couple more times (along with my bowline) and it impressed me that even as a 'loose hitch' it performed well in my application.

BTW, the only reason I did not use my bowline at both ends of my tow line was that getting my shoulders and arms under the car to use my nice tying method wasn't so easy. The AGH proved an interesting alternative (easier to tie) for me.

Cheers,

mobius

[roo]

BTW, the only reason I did not use my bowline at both ends of my tow line was that getting my shoulders and arms under the car to use my nice tying method wasn't so easy. [...]

Some diagrams don't make it clear, but the coil of the bowline can be formed after you've passed the rope around or through your target object:

http://notableknotindex.webs.com/bowline.html