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Sit harness. A climbing harness is a piece of equipment that allows a climber to tie in to the safety of a rope. [1] It is used in rock and ice climbing, abseiling, and lowering; this is in contrast to other activities requiring ropes for access or safety such as industrial rope work (such as window cleaning), construction, and rescue and recovery, which use safety harnesses instead.
Swiss soldiers abseiling using the Dülfersitz Abseiling by means of the Dülfersitz (not free-hanging) The Dülfersitz (named after mountaineer Hans Dülfer who had developed a different but related technique [ 1 ] [ 2 ] ), also known as body rappel , is a classical, or non-mechanical abseiling technique, used in rock climbing and mountaineering.
It is a versatile knot to know and can be used for full rope length vertical descents without the need for gloves. The friction of the rope against the screw on the carabiner can cause the screw to undo and the carabiner to open, potentially weakening the strength of the carabiner, or allowing the rope to escape the carabiner completely.
The ropelength of a knotted curve is defined as the ratio () = / (), where is the length of and () is the knot thickness of . Ropelength can be turned into a knot invariant by defining the ropelength of a knot K {\displaystyle K} to be the minimum ropelength over all curves that realize K {\displaystyle K} .
Fast rope descents are conducted without combat equipment. Soldiers are tested on: Tie the Hip rappel (Swiss) seat (the 90-second time limit has been reinstated) Hook-up to a rappel rope without deficiency (the 15-second time limit has been reinstated)
A single-pitch route can range from 7 metres (23 ft) to the full length of the climbing rope (by definition, the longest belay of a 'leader' is limited by the length of the rope). In the 1960s to the 1980s, climbing ropes were typically 50 metres (160 ft) in length, however, modern ropes are typically 60–70 metres (200–230 ft) in length ...
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Leader (top) belaying the second (below), an aspect of multi-pitch climbs. Multi-pitch lead climbing involves ascending climbing routes that cannot be completed in a single pitch (which is typically a rope-length), usually due to their height but also due to routes that move in unusual directions (e.g. routes with a lot of traversing).
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