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GRIGRI ASCENDING TECHNIQUE

               Another efficient and convenient ascending technique involves the use of a Petzl Grigri
               Belay device in conjunction with a single handled ascender with an attached foot loop

               The combined use of an ascender in combination with an autolocking belay device is
               also referred to as RADS for "Rope Ascending Descending System". The Grigri is
               attached to the rescuer’s harness and an additional harness attachment is created with
               an adjustable tether (e.g. sewn daisy chain) that is rigged directly to the handled
               ascender (Figure 153). The rescuer stands up on the foot loop and then pulls on the
               braking side of the Grigri (running end of the rope) to progress up the device up the
                    75
               rope . This technique generates heavy cyclic loading on the fixed rope being
               ascended, therefore ample edge protection needs to be employed to protect the line.



















































                            Figure 153- Grigri Ascending Technique

               75  http://www.petzl.com/us/outdoor/grigri-product-experience


               150 | P age
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