Butterfly bend

Butterfly Bend

Names	Butterfly Bend, Strait bend^[1]
Category	Bend
Related	butterfly loop, Hunter's bend, Zeppelin bend, Ashley's bend
Releasing	non-jamming
Caveat	Errors in tying can result in a similar looking but insecure bend
Instructions

The butterfly bend is a knot used to join the ends of two ropes together. It is the analogous bend form of the butterfly loop,^[1] in that it is the butterfly loop with the loop cut.^[2] The observation that the butterfly loop is secure enough to isolate a worn or damaged section of rope within the loop indicated that the bend form of the knot would be similarly secure.^[3]

History

When Phil D. Smith made the first known presentation of the Hunter's bend in 1953 (under the name "rigger's bend"),^[4] he described it as a modification to the butterfly bend.^[3] While the bend form had been known to mountaineers, nautical rigger Brion Toss brought the knot to a wider audience when he published it in 1975. Unaware of the earlier publication, Toss called the butterfly bend the strait bend after the Strait of Juan de Fuca.^[1]^[5]

Tying

The butterfly bend can be tied using a subset of the methods used for tying the loop form by holding the two rope ends together and treating them as if they were a single bight. However specific methods have been developed for tying the bend form directly, including the one shown below:

butterfly bend step by step

Security

A properly tied butterfly bend should be as secure as the equivalent loop form.^[1] However, subtle positioning errors during the above shown tying method can result in a similar looking but insecure bend knot.^[6]

References

1 2 3 4 Toss, Brion (1998), The Complete Rigger's Apprentice, Camden, Maine: International Marine, pp. 72–73, ISBN 0-07-064840-9
↑ Budworth, Geoffrey (1999), The Ultimate Encyclopedia of Knots, London: Hermes House, p. 77, ISBN 0-681-60694-0
1 2 Smith, Phil D. (1955) [1953]. Knots for Mountaineering, Camping, Utility, Rescue, etc. Twentynine Palms, CA: Desert Trail.
↑ Budworth, Geoffrey (1985) [1983], The Knot Book, New York: Sterling Publishing, p. 120, ISBN 0-8069-7944-5
↑ Asher, Harry (1989), The Alternative Knot Book, London: Nautical Books, p. 57, ISBN 0-7136-5950-5
↑ "Butterfly Bend". Notable Knot Index. Retrieved 2012-05-27.

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

Category
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Butterfly bend

History

Tying

Security

See also

References