Grant Prattley

Founder and consultant at Over The Edge Rescue. Rescuer, instructor, guide, author, designer, and adventurer.

Double Fisherman’s vs Overhand Rethread

Double Fisherman’s vs Overhand Rethread

Double fisherman’s vs. overhand rethread Tying Prusik loops with a bend for your Prusik Minding Pulley For tying Prusik loops I have always used the double fisherman’s bend. However, the double fisherman’s is bulky and as a result, never sits quite right on the body of the Prusik Minding Pulley (PMP). I decided to try […]

Build a 9:1 pulley system with a Jigger

Build a 9:1 pulley system with a Jigger Set of fours load capture

Build a 9:1 pulley system with a Jigger Something I am always looking to do is find new ways to make gear more useful. For rescue one of the great tools in the toolkit is the jigger (aka set-of-fours). This is a pre-constructed pulley system made, in this instance, with two double pulleys. It has […]

When anchor acronyms go bad

When anchor acronyms go bad Anchor acronyms

When anchor acronyms go bad There are a lot of anchor acronyms out there in the rigging, rope and rescue world. A few examples include: SERENE: Solid (or strong), Equalized, Redundant, Efficient, No, Extension ERNEST(A): Equalized, Redundant, No, Extension, Solid (or strong), Timely, (Angles) STRADS: Solid, Timely, Redundant, Angles, Distribution, Shockload They are all basically variations […]

Get more friction with a double Munter

Get more friction with a double Munter

Get more friction with a double Munter A number of organisations (e.g.ski patrols and glacier guiding) use a 6mm Spectra or Dyneema line for escape or access. The upside of using this type of system is it is lightweight and easily carried all day. One of the downsides is that you need to use a […]

Pulley versus carabiner efficiency

Pulley versus carabiner efficiency

Pulley versus carabiner efficiency. It’s always a good idea to be prepared for self-rescue when you are out and about climbing, caving, canyoning, or mountaineering. Make sure the gear you have can do the job and you have tried it out. One question that comes up is: Can I use carabiners (to save weight) instead […]

6 Training Tools for Instructors

6 Training Tools for Instructors

6 Training Tools for Instructors. This article was originally written for the training of SAR volunteers however, the principles here I think are universally applicable to all instructing. We have a unique situation and opportunity training SAR volunteers: They want to be at the training – at the course, monthly training, refreshers, SAREXs… They are giving […]

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