Grant Prattley

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

Reasons why jiggers don’t perform as well as they should

Reasons why jiggers don’t perform as well as they should As we head around various rescue groups, we find many jiggers (aka a set of fours) are rigged incorrectly or operate inefficiently. Despite leaving everything in good working order, we often come back at a later time and see the jigger fairies have come in […]

The American Death Triangle in the real world

The American Death Triangle in the real world Recently (Feb 2018) I wrote a blog on the forces involved in the American Death Triangle. I questioned if there were some occasions we can use this style of rigging. Note: I would recommend reading this first article before diving into this one: American Death Triangle and […]

Mechanical rescue belay for 10mm rope?

Mechanical rescue belay for 10mm rope? Putting two belay devices with assisted braking through their paces We tested rescue belays (belay devices with assisted braking) as they would function as part of a two-rope system for lightweight back-country rescue. Out in the real world of the backcountry, you often don’t have dry clean conditions. So […]

How effective is a friction device in front of Tandem Prusiks?

How effective is a friction device in front of Tandem Prusiks? Back in 2002, yes that’s over 15 years ago, we started putting a friction device in front of Tandem Prusiks (pretension) in the backup belay line as part of a two rope system for Mountain Rescue. We attached a 1m sling in front of […]