Double overhand noose
From Infogalactic: the planetary knowledge core
Names
Double Overhand Noose Knot (DONK) or the Poacher's Knot (Ashley # 1239)[1]
| Double overhand noose | |
|---|---|
| Category | Hitch |
| Efficiency | High |
| Related | Double overhand knot, Double fisherman's knot |
| Releasing | Jamming |
| Typical use | Bind a carabiner |
| Caveat | Difficult to untie |
Usage
The double overhand noose is a very secure hitch knot. It might be used by cavers and canyoneers to bind a cow tail or a foot loop to a carabiner.[2]
Tying
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Noeud double ganse-1.jpg
Make a bight
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Noeud double ganse-2.jpg
Turn around the standing end
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Noeud double ganse-3.jpg
the 2nd round rides the 1st
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Noeud double ganse nouage.jpg
Tie inside the two rounds
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Noeud double ganse-4.jpg
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Noeud double ganse-5.jpg
Tighten
Releasing
A heavily tightened double overhand noose will jam. The bound object has to be removed before untying.
Security
As the double overhand knot, it neither slips nor turns around. However, a third round turn might be useful with some highly lubricious spectra/nylon ropes.[5]
Notes and references
- ↑ Ashley, Clifford W (1944). The Ashley Book of Knots. Doubleday, p.224
- ↑ Les longes en spéléologie et descente de canyon (French)
- ↑ Note: the running end is stored in the bight.
- ↑ Note: foot loops tied with a zeppelin loop and an alpine butterfly
- ↑ Tom Moyer, Paul Tusting, Chris Harmston,(2000) Comparative Testing of High Strength Cord
