Directional Figure 8 loop Knot

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How to tie Directional (inline) Figure 8 Loop Knot.

 

Directional Figure 8 Loop is a Climbing knot. The directional figure eight (a.k.a. inline figure-eight loop) is a loop knot as well. It is a knot that can be made on the bight. The loop must only be loaded in the correct direction or the knot may fail. It is useful on a hauling line to create loops that can be used as handholds. It also provides a place to attach a Z-Drag to the line when prusiks are unavailable.
 


 

History
Ashley describes the Directional Figure 8 as the second of two examples of a "Single Bowline on the Bight" (ABOK # 1058, p 191). It creates a loop in the middle of a rope and is used as a load-bearing knot by climbers to take strain in one direction only. In fact a strain from the wrong end actually capsizes the knot into one that slides, i.e., it functions as a noose so that the loop tightens under load.
 



Advantages:
The Directional Figure 8 is quickly tied and is designed to take a load in one direction only.
Easy to inspect
Can easily be tied with gloves on
Can easily be tied one-handed


Disadvantages:
The Directional Figure 8 can be difficult to undo after a shock load. It must not be used with the pull coming from the wrong end because of its propensity to capsize and constrict. 
 


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  • Updated 6 days ago
 

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