drop tests Archive
One piece of information often lacking in discussion of the Petzl ASAP is just how much rope is needed below the device to be sure it catches during a fall.
A test looking at the effect of a fall on the rope below the victim's chest ascender.
There are many ways to tie a single rope to a pair of anchor points. The two methods most commonly used are: the Alpine Butterfly & Figure-of-8 “Y-hang”. the Figure-of-8 bunny ears knot. You need to login
Who else remembers the animated discussions when Petzl released the GriGri in the early 1990’s? Petzl used marketing phrases like “For the Best Belay Job You’ll Ever Have!”, and old school climbers scoffed with comments along the
This study has been prompted from a few directions but the key questions are: What is the force required to initiate tearing on some common shock-packs? Does this value change if the unit is wet? Can shock-packs