Page 178 - Rappelling
P. 178

pitons: metal spikes of various shapes that are   standing end: the end of the rope that is attached
                        hammered into the rock to provide anchors      to something, such as an anchor, as opposed to
                        in cracks; sometimes called pins or pegs. These   the running end or free end
                        types of anchors were common up to the 1970s   static rope: a rope with virtually no stretch
                        but are rarely used today.                  stopper knot: a safety knot tied on the end of a
                     power point: see master point                     rope to prevent rappelling off the rope’s end
                     pre-equalized: tying off an anchor system for an   SWL: safe working load; also known as working
                        anticipated force in only one direction        load limit, normally one-fifth of the minimum
                     prusik: both the knot and any means by which      braking strength for quick links
                        you mechanically ascend a rope              tag end: the very end of the rope, or the tail end
                     quick link: a steel screw-link used for rappel    that protrudes from a knot
                        anchors                                     tail: the length of the rope’s end protruding from a
                     rappel: to descend by sliding down a rope, typically   knot
                        utilizing a mechanical braking device       thread: a sling or cord looped through a tunnel in
                     rapping: informal term for rappelling             the rock structure
                     RENE: acronym for Redundancy, Equalization, and   UIAA: Union Internationale des Associations
                        No Extension                                   d’Alpinisme
                     rope direct belay: to belay from an extended   vector: a measurement of force and direction in
                        master point using the climbing rope           anchor systems
                     runner: see sling                              water knot: a knot used to tie a loop of webbing
                     running end: the end of the rope you’re working   webbing: synthetic fiber woven flat like a strap,
                        with, as opposed to the standing end           used to make slings. Nylon webbing was used
                     self-equalizing: an anchor system that adjusts to   exclusively for slings until the 1990s; now slings
                        withstand a force in multiple directions       are also made from Spectra and Dyneema
                     SLCD (spring-loaded camming device): see          webbing.
                        Friend                                      WLL: working load limit; also known as safe
                                                                       working load, normally one-fifth of the
                     sliding X: a self-equalizing sling rigged between
                        two anchor points; also known as magic X       minimum breaking strength for quick links
                     sling: webbing sewn or tied into a loop; also called   Z system: a raising system with a 3:1 mechanical
                                                                       advantage
                        a runner
                     spring-loaded camming device (SLCD): see
                        Friend














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            Rappelling_i-174_3pp_CS55le.indd   167                                                         7/24/13   10:19 AM
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