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Figure-of-nine loop

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Title: Figure-of-nine loop  
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Subject: Figure-eight loop, Knots, Surgeon's loop, Blood knot, Zeppelin loop
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Figure-of-nine loop

Figure-of-nine loop
Names Figure-of-nine loop, Figure-nine loop
Category Loop
Related Figure-eight knot, Figure-of-eight follow through, Figure-of-eight loop, Stevedore knot
Typical use Caving

The figure-of-nine loop is a type of knot to form a fixed loop in a rope. Tied in the bight, it is made similarly to a figure-of-eight loop but with an extra half-turn before finishing the knot.[1]

Also similar to the stevedore loop, the figure-nine loop is generally shown as being based on an intermediate form between the figure-eight knot and the stevedore knot.[1][2] The Ashley Book of Knots shows this intermediate knot, in stopper form, as #521.[3]

While it uses more rope and is bulkier than the figure-of-eight loop, the figure-nine loop is somewhat stronger and less likely to jam.[1] It is sometimes used instead of a figure-of-eight loop to attach a rope to an anchor point or belay.[2]

Tying

References

  1. ^ a b c Marbach, Georges; Bernard Tourte (2002). Alpine Caving Techniques; A Complete Guide to Safe and Efficient Caving. English edition translated and adapted by Melanie Alspaugh. Allschwil, Switzerland: Speleo Projects, Caving Publications International. p. 72.  
  2. ^ a b Smith, Bruce; Allen Padgett (1996). On Rope; North American Vertical Rope Techniques (New Revised ed.). Huntsville, Ala.:  
  3. ^ Ashley, Clifford W. (1993) [1944], The Ashley Book of Knots, New York: Doubleday, p. 85,  
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