"On Rope" illustrates it as an ascending hitch. My theory is that the popularity of the book keeps the Helical alive.
I would imagine that the absence of the bridge running across the coils accounts for the quick release feature. Both the traditional Prusik and Blakes Hitch have this bridge feature that holds the form of the coiled friction hitch and that sometimes over-tightens.
Regards, Jim Tree Climber's Toast: may we climb a 100 year old oak tree together, and may we plant that tree tomorrow.
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I tinkered with the Helical and it felt a tad spookie to me. Additionally, it didn’t look quite as pretty when it was loaded, (see “unloaded” picture in the above post). The good ol’ Blake’s Hitch is mighty hard to beat for a casual climber such as I.
Thanks for the follow-up on the Helical! -Ej-
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