Karash double loop

Karash double loop

Category	Loop
Efficiency	72%^[1]
Typical use	climbing, rope rescue

Karash double loop is a common name for a knot forming two loops. This knot has been a known variant of the Bowline on a bight per the International Guild of Knot Tyers, referred to as bowline twist or twisted collar bowline on a bight. The knot is also referred to as nœud de fusion in French references and sometimes called Fusion knot in English.

The name Karash double loop was introduced by Mike Karash, who re-invented the knot to create makeshift harnesses for rescue operations and popularized it among rescue workers.^[2]^[3]

Applications

The knot is used for vertical caving using the single rope technique,^[4] particularly by French cavers. It is advertised by the French Federation of Speleology as a safe alternative to the bowline on a bight. Compared to the traditional bunnyears variant of the figure of eight, its loops remain open under load allowing to clip and unclip carabiners in the loops more easily.

The knot is also popular to create a makeshift harness in rescue operations. The two loops are used as leg loops to sit in. The knot can be further improved by adding two bowlines around a person's body to create a three point harness.^[5]^[6]

Technique

The traditional method of tying this knot starts with a reverse loop (like the Eskimo bowline) then wraps around the standing end (AKA the "tree"), you then finish the knot the same way as the BOAB - Bowline on a bight

An alternative way as advertised by the French Federation of Speleology and Mike Karash is starting with a figure of eight on a bight, then pulls two strands of the rope back through the bight.

Start with a bight of rope
Tie a figure of eight on the bight
Pull the loop of the figure of eight over the whole knot
Take the two strands of rope together
Pull back the two strands of rope closest to the loop inside the knot
These two form the final two loops of the knot
Tighten and dress the knot

References

↑ Karash knot test
↑ Karashknot How-to Accessed: 4/27/2012
↑ Inventor Background Accessed: 4/27/2012
↑ Karash (Fusion) Knot – How to tie Accessed 2/7/2014
↑ Karash Double Loop Harness Video Accessed: 4/28/2012
↑ A site about nothing: The Best Knots: Optional Knots

External links

Official Website

Knots

By type

Bends	Adjustable bend Albright special Alpine butterfly bend Ashley's bend Basket weave knot Beer knot Blood knot Carrick bend Double fisherman's knot Fisherman's knot Flemish bend Grief knot Halyard bend Harness bend Heaving line bend Hunter's bend Nail knot One-sided overhand bend Racking bend Sheet bend Shoelace knot Shroud knot Simple Simon under Single carrick bend Surgeon's knot Surgeon's loop Triple fisherman's knot True lover's knot Water knot Zeppelin bend Zeppelin loop

Binding	Boa knot Bottle sling Constrictor knot Corned beef knot Granny knot Ground-line hitch Jamming knot Miller's knot Packer's knot Reef knot Strangle knot Thief knot Transom knot

Climbing	Alpine butterfly knot Autoblock Bachmann knot Beer knot Bowline on a bight Directional figure eight Double anchorman knot Double bowline Farmer's loop Figure-eight knot Figure-eight loop Figure-of-nine loop Friction hitch Klemheist knot Munter hitch Overhand loop Prusik Trident loop Yosemite bowline

Coils	Alpine coil Butterfly coil

Decorative	Carrick mat Chinese button knot Celtic button knot Diamond knot Fiador knot Friendship knot Matthew Walker knot Turk's head knot Wall and crown knot

Fishing (angling)	Angler's loop Arbor knot Bimini twist Blood knot Fisherman's knot Half blood knot Improved clinch knot Knotless knot Nail knot Palomar knot Snell knot Trilene knot Triple fisherman's knot Turle knot Uni knot

Hitches	Adjustable grip hitch Anchor bend Axle hitch Bachmann knot Bale sling hitch Barrel hitch Becket hitch Blackwall hitch Blake's hitch Boom hitch Buntline hitch Cat's paw Clove hitch Cow hitch Double overhand noose Falconer's knot Farrimond friction hitch Friction hitch Garda hitch Gripping Sailor's hitch Ground-line hitch Half hitch Halter hitch Highpoint hitch Highwayman's hitch Hitching tie Icicle hitch Improved clinch knot Killick hitch Knute hitch Lobster buoy hitch Marlinespike hitch Munter hitch Ossel hitch Pile hitch Snuggle hitch Swing hitch Taut-line hitch Timber hitch

Loop	Angler's loop Artillery loop Bale sling hitch Bowline Bumper knot Carrick bend loop Cowboy bowline Diamond knot Double bowline Dropper loop Eskimo bowline Fiador knot Fireman's chair knot Friendship knot loop Halter hitch Handcuff knot Honda knot Jury mast knot Overhand loop Portuguese bowline Rigid double splayed loop in the bight Slippery eight loop Span loop Spanish bowline Tom fool's knot Trident loop Triple bowline Triple crown knot Water bowline Yosemite bowline Zeppelin loop

Running (slip)	Hangman's knot Running bowline Running highwayman's hitch Slip knot Tarbuck knot

Shanks	Catshank Dogshank Sheepshank

Stopper	Ashley's stopper knot Button knot Double overhand knot Monkey's fist Overhand knot Stevedore knot

Whipping	Common whipping Overhand knot with draw-loop Portuguese whipping Sailmaker's whipping West Country whipping

Lists of knots
Related topics

Lists of knots	Bends Bindings Decorative knots Hitches (friction) Macramé Mathematical

Related topics	Chinese knotting International Guild of Knot Tyers Lashing Rope splicing Seizing

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