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Prusiks
Submitted by An Outdoor Idiots Team Member.
The French Prusik
The French Prusik has a reputation for being particularly easy to un-jam after it has been loaded heavily. Normally, when a Prusik has been loaded heavily, that load must be completely removed before the knot will slide again, and perhaps the knot will even have to be manually loosened. The French Prusik seems, generally, quite good at avoiding these problems, and in some cases can even be pushed along the rope when there is a small load on it.Tying a French Prusik
A French Prusik is tied with a Prusik loop, as with the original Prusik. Here's how:First, treating the Prusik loop as a single bit of cord, wind it up the rope, as in Fig. 13:
Finish the turns when there is just enough of the Prusik loop left at the top to come down and meet the other end of the loop at the bottom, then clip them together in a karabiner if available, or tie them together by any other means. See Fig. 14:
When loaded, the turns will stretch out and become quite ugly (Fig. 15), however this is normal:
A further feature of the French Prusik is that when it is loaded, because the karabiner (or whatever else is used) is clipped through two loops of the Prusik cord, the load is effectively shared by 4 lengths of the Prusik cord. This means that, in terms of cord strength, it is a very strong Prusik. Most other Prusiks, including the original Prusik on page 1, effectively share the load between two lengths of Prusik cord. Some Prusiks only load one length of Prusik cord.
Page 3 of 10 Previous Next [Top of Page]
Page 1: Introduction to Prusiks, and the Original Prusik knot
Page 2: History of the Prusik Knot, and Understanding Prusik Knots
Page 3: The French Prusik
Page 4: The Bachmann Prusik
Page 5: The Kreuzklem Prusik and the Kleimheist Prusik
Page 6: The Penberthy Prusik
Page 7: Example Use (1) - An Adjustable Loop made with the Penberthy Prusik
Page 8: Example Use (2) - A Line Tensioner made with two Original Prusiks on the Same Cord
Page 9: Example Use (3) - Tying a Prusik to a Rigid Pole
Page 10: Getting the most from Prusiks, and Prusik Safety
Page 2: History of the Prusik Knot, and Understanding Prusik Knots
Page 3: The French Prusik
Page 4: The Bachmann Prusik
Page 5: The Kreuzklem Prusik and the Kleimheist Prusik
Page 6: The Penberthy Prusik
Page 7: Example Use (1) - An Adjustable Loop made with the Penberthy Prusik
Page 8: Example Use (2) - A Line Tensioner made with two Original Prusiks on the Same Cord
Page 9: Example Use (3) - Tying a Prusik to a Rigid Pole
Page 10: Getting the most from Prusiks, and Prusik Safety
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