Description
The Figure-of-Nine Loop forms a fixed loop in a rope. It is sometimes used instead of a Figure-of-Eight Loop to attach a rope to an anchor point or belay. The knot is particularly popular amongst cavers.
Structure
Tied in the bight, the Figure-of-Nine Loop is made similarly to a Figure-of-Eight Loop but with an extra half-turn before finishing the knot.
Strength/Reliability
While it uses more rope and is bulkier than the Figure-of-Eight Loop, the Figure-of-Nine Loop is somewhat stronger and less likely to jam after heavy or prolonged loading.
Warning
Verify tying technique with a skilled instructor where knot failure could cause property damage, injury, or death.