We are seeing an interesting collision of techniques: Standard triangular pyramid tripods used for confined space rescue, Asymmetrical multi-pods used for technical rope rescue and rope access, and Powered winches.
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
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