Pulley (Pulley system)

Pulley
Other names	Pulley system
Use(s)	Rope support, rescue techniques, hauling

Pulleys are used mainly during rescue techniques both in climbing and in mountaineering.

Principle of operation

TODO

3-to-1 (2-to-1) Pulleys

These pulleys cannot be used for lifting a full-body weight by a single person in the most situation. However, they work way faster than the higher-ratio pulleys. Their main use is in assisted lifting.

Rope-support

TODO

Creavase self-rescue

TODO

5-to-1 (4-to-1) Pulley

These pulleys distribute the force in a way that lifting a person is possible without assistance. However due to the ratio the speed of lifting is very low and there is substantial friction from the amount of bends in the pulley system.

Rescue

TODO