Releasable rigging
From ropewiki.com
Introduction
A releasable rigging (different from a releasable anchor) is one where the rappel rope may be lowered, even while weighted by a rappeller, by releasing part of the system. This kind of system is often called a "contingency anchor" in the United States.
Advantages
Releasable riggings are used for a number of reasons, including:
- Safety in class C canyons to avoid rappeller drowning in the case of rope entanglement, a device jam, etc (see Team dynamics (swift water) for more information)
- Quick rescue of beginners who are more likely to jam their rappel device with hair, a shirt, etc
Examples
- Figure 8 block
- Joker
- Jester
- Releasable munter hitch