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An autoblock (or autobloc or "third hand") is a rope device used in climbing and caving for both rappelling (downward) and ascending (upward). [1] [2]While rappelling, it slides freely down the rope when pushed downward by the hand, allowing a controlled descent, but jams in the event of a sudden drop or loss of control, stopping the descent.
] Testing found it a strong knot for the purpose. [8] It is recommended that any knot which is used to attach a rope to a safety harness is always finished with a stopper knot. A stopper knot, while serving to keep the loose end tidy, will only help to prevent failure of the primary knot, and does not act as a secondary safety knot by itself.
As mentioned earlier, this knot can replace the figure-eight knot when tying into a climbing harness by tying a regular bowline knot and then re-threading it, such as is done with a figure eight knot. However, it is critical to use a strong backup knot with plenty of tail beyond the knot, as the knot may untie during long climbs. The advantage ...
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A Tensionless hitch is an anchor knot used for rappelling or rope rescue. Unlike most knots, the tensionless hitch retains a 100% efficiency rating, [ 3 ] meaning the strength of the knot is equal to the strength of the rope; it is not a significant stress riser .
This device utilizes a large surface area in contact with a climbing rope to provide sufficient friction along with the proper technique to be used as a belay device or for rappelling. A figure 8 (sometimes just referred to as an 8) is used in conjunction with a climbing harness and locking carabiner to control a belayed climber's descent, or ...
Water knot (also known as Tape Knot, Double Overhand Bend, Ring Bend): The Water knot is useful to tie together two ends of ropes. Often used with webbing. Binding Strangle knot: The Strangle knot is a simple binding knot. It forms both sides of a Double fisherman's knot, and is also used to back up loop knots and both ends of bends. Hitches
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.