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Whitewater Rescue Knots

This page is dedicated to the art of tying knots. Most of them are quite commonly used aboard or related to the sea - fishing and that sort of thing. All the knots are animated and hence move by themselves, showing you how they are constructed. If more information is required on these knots, The Ashley Book of Knots by Clifford Ashley is a great source of information.

Click the pictures below to see how to tie the knots

Prusik Knot:

The prusik knot or prusik hitch is a friction hitch knot most commonly used by climbers for ascending. It is named after Karl Prusik, an Austrian mountaineer who introduced this knot in 1931.

Rescue teams such as Swiftwater rescue use a Prusik knot as a 'pulley tender' hitch, to hold a line taut while tensioning a highline for a Tyrolean traverse, or in boat-on-tether and similar rescue operations.

The Prusik knot offers a way to ascend on a climbing rope using slings, smaller diameter rope, or cord. The knot slides freely along the rope but will grip firmly when weighted. In its simplest form, it is a girth hitch tied twice:

Rescue Prusik Knot
Rescue Prusik Knot
Rescue Prusik Knot
Rescue Prusik Knot
Rescue Prusik Knot
Rescue Prusik Knot
Rescue Prusik Knot

Alternatives uses for the prusik knot:

This knot can slip on worn ropes, and for the purpose of ascending its use is largely superceded by mechanical ascenders. Aside from emergency situations, its most common use in mountaineering and climbing is now as a backup knot. In this application, it is often known as a dead-man's hand for abseiling. Should the abseiler release their brake hand, the knot prevents them falling out of control when it is tied around the fixed rope, below the descender, and attached to the harness.

It can also be used to hold cylindrical objects.

Similar, alternative knots include the Klemheist, Bachman and Autoblock knots. The Klemheist tends to be easier to slide up, but does not work well with webbing. The Bachman is less liable to slip when tied with webbing, but requires a carabiner.


Hunter's bend:

Hunter's bend knotHunter's bend, also known as rigger's bend, is a knot used to secure two lines. It consists of 2 interlocking overhand knots. The knot can jam when it's pulled hard, but is usually easy to untie. Is especially good to tie two objects that have to be parallel, but do it in two places for the objects to be secure.

River Connection Safety and Rescue Gear


Bachmann knot:

The Bachmann (also spelt Bachman) is a friction hitch. It is useful when the friction hitch needs to be reset quickly/often or made to be self-tending as in crevasse and self-rescue.

The Bachmann requires the use of a carabiner. It does not matter if the carabiner is locking or not. Most importantly, the carabiner must be of round cross section for friction. Grabbing hold of the carabiner will release the friction and allow the hitch to slide freely and thus be moved appropriately. To remove the Bachmann, just unclip the top loop, hold onto the carabiner and pull the cord free.

Rescue Bachmann knot Rescue Bachmann knot Rescue Bachmann knot

Klemheist knot:
Rescue Klemheist knotThe Klemheist knot (or Machard knot, AutoBlock knot, or French Prusik) is a type of friction hitch, used as part of a system to ascend or descend a climbing rope. As with other friction knots, it grips the rope when weight is applied and is free to move when the weight is released. It is similar in function to the Prusik knot and the Bachmann knot, but has the advantage over the prusik that a loop of webbing can be used as an alternative to cord. The Klemheist tends to be easier to slide up than a Prusik, but does not work well with webbing.

 

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