Can we rely on devices to slip on ropes at predictable forces given the possible range of physical and environmental conditions? Here we test the Petzl Shunt on several different ropes.
Synthetic kernmantle rope has traditionally been characterised as either Dynamic or Static. These general terms have probably been derived from their intended use, specifically that activities with planned dynamic events should use dynamic ropes. The range of
Rope grabs: when will they slip? There are many rope grabs used by technicians including: Personal ascenders Attachment devices for raising people and loads Attachment devices for positioning people and loads Just how much can each of
Auto locking belay devices: when will the rope slip? There are many auto-locking devices used by technicians as: Personal descenders Anchored devices for lowering loads Anchored devices to hold tension while raising loads Just how much can