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The Tarbuck knot was made popular around 1952 by Kenneth Tarbuck, a climber and skier, for use by climbers, and was primarily used with stranded nylon ropes, before the advent of kernmantle ropes made this use both unnecessary and unsafe.[1][2] It was used when the rope is subject to heavy or sudden loads,[3] as it will slide to a limited extent thus reducing shock (but with kernmantle ropes it can strip the outer sheath).[2] The knot was already employed by 1946 as "the knot" by American tree trimmers.[4]
| Tarbuck knot | |
|---|---|
 | |
| Category | Running |
| Efficiency | 32% |
| Origin | Kenneth Tarbuck |
| Releasing | Non-jamming |
| Typical use | Climbing (obsolete) |
| Caveat | The knot grips adequately, but under sudden stress will slide to a limited extent thus reducing shock loading. |
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