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Karash double loop
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.〔(Karashknot How-to ) Accessed: 4/27/2012〕〔(Inventor Background ) Accessed: 4/27/2012〕
== Applications ==
The knot is used for vertical caving using the single rope technique,〔(Karash (Fusion) Knot – How to tie ) Accessed 2/7/2014〕 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.〔(Karash Double Loop Harness Video ) Accessed: 4/28/2012〕〔(A site about nothing: The Best Knots: Optional Knots )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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