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The force on each fixed point depends on the angle at the focal point. The following table lists the percentage of force transferred to the fixed point for various focal point angles, along with figures for a standard V-shaped anchor. [2] American death triangle showing the associated lines of force (in blue) acting on the anchors
In rock climbing, an anchor can be any device or method for attaching a climber, rope, or load to a climbing surface—typically rock, ice, steep dirt, or a building—either permanently or temporarily. The intention of an anchor is case-specific but is usually for fall protection, primarily fall arrest and fall restraint.
The rope is hung prior to the climb from the anchor point at the top, typically by carabiners, slings, or cord, or some combination thereof. [2] Sport climbing, and its competition lead climbing variant, adds quickdraws that are clipped into the pre-drilled on-site bolts while the climber is lead climbing the route. No additional climbing ...
1960s-era pitons, including: knifeblades, lost arrows, bugaboos, ring angles, and bongs. A piton (/ ˈ p iː t ɒ n /; also called pin or peg) in big wall climbing and in aid climbing is a metal spike (usually steel) that is driven into a crack or seam in the climbing surface using a climbing hammer, and which acts as an anchor for protecting the climber from falling or to assist progress in ...
An ice screw. Some modern screws like this one now have a handle to assist entry and removal, whereas early models did not. An ice screw is a threaded tubular screw used as a running belay or anchor by climbers on steep ice surface such as steep waterfall ice or alpine ice during ice climbing or crevasse rescue, to hold the climber in the event of a fall, and at belays as anchor points.
A sling is an item of climbing equipment consisting of a tied or sewn loop of webbing. These can be wrapped around sections of rock, hitched to other pieces of equipment, or tied directly to a tensioned line using a Prusik style knot. They may be used as anchors, to extend an anchor to reduce rope drag, in anchor equalization, or to climb a ...