Double overhand noose

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
ABoK	409

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.^[1]

Double overhand noose binding carabiners.^{[lower-alpha 1]}^{[lower-alpha 2]}

Names

Double Overhand Noose Knot (DONK) or the Poacher's Knot (ABoK #409)^[2]

Tying

Make a bight
Turn around the standing end
the 2nd round rides the 1st
Tie inside the two rounds
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.^[3]

Notes

↑ The running end is stored in the bight.
↑ Foot loops tied with a zeppelin loop and an alpine butterfly.

References

↑ Les longes en spéléologie et descente de canyon Archived March 31, 2012, at the Wayback Machine. (in French)
↑ Ashley, Clifford W (1944). The Ashley Book of Knots. Doubleday, p.224
↑ Tom Moyer, Paul Tusting, Chris Harmston,(2000) Comparative Testing of High Strength Cord

Knots

By type

Bends	Adjustable Albright special Ashley's Alpine butterfly Basket weave Beer Blood Carrick Double fisherman's Fisherman's Flemish Grief Halyard Harness Heaving line Hunter's Nail One-sided overhand Racking Sheet Shoelace Shroud Simple Simon under Single carrick Surgeon's Surgeon's loop Triple fisherman's True lover's Water Zeppelin
Binding	Boa Bottle sling Constrictor Corned beef Granny Ground-line hitch Jamming Miller's Packer's Reef Strangle Thief Transom
Climbing	Autoblock Bachmann Beer Bowline on a bight Alpine butterfly Directional figure eight Double bowline Farmer's loop Figure-eight Figure-eight loop Figure-of-nine loop Friction hitch Klemheist Munter hitch Overhand loop Prusik Trident loop Yosemite bowline
Coils & shanks	Chain sinnet Sheepshank
Decorative	Carrick mat Chinese button Celtic button Diamond Fiador Friendship Ghiordes & Senneh Matthew Walker Turk's head Wall and crown
Fishing (angling)	Angler's loop Arbor Bimini twist Blood Fisherman's Improved clinch Knotless Nail Palomar Snell Trilene Triple fisherman's Turle Uni
Hitches	Adjustable grip Anchor bend Axle Bachmann Bale sling Barrel Becket Blackwall Blake's Boom Buntline Cat's paw Clove Cow Distel Double overhand noose Falconer's Farrimond friction Friction hitch Garda Ground-line Half Halter Highpoint Highwayman's Hitching tie Icicle Improved clinch Killick Knute Lobster buoy Marlinespike Munter Ossel Pile Pipe Sailor's Snuggle Swing Taut-line Timber
Loop	Angler's Artillery loop Bale sling hitch Bowline Bumper Carrick bend loop Cossack Cowboy bowline Diamond Double bowline Dropper loop Eskimo bowline Fiador Fireman's chair Friendship knot Halter hitch Handcuff Honda Jury mast Overhand Portuguese bowline Rigid double splayed loop in the bight Slippery eight Span Spanish bowline Tom fool's Trident Triple bowline Triple crown Water bowline Yosemite bowline Zeppelin
Running (slip)	Hangman's Running bowline Running highwayman's hitch Tarbuck
Splices & splicing	Eye Fid Marlinspike Rat-tail T Western Union
Stopper	Ashley's stopper Button Double overhand Monkey's fist Overhand Stevedore
Whipping	Common Overhand knot with draw-loop Portuguese Sailmaker's West Country

Lists of knots
Related topics

Lists of knots	Bends Bindings Decorative knots Hitches (friction) Mathematical
Related topics	Chinese knotting Density History International Guild of Knot Tyers Macramé Mizuhiki Norigae Ropework Lashing Splicing Seizing Sennit

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