Grant Prattley

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

Soil Anchor Report

Soil Anchor Report

Soil Anchor Report A report by Chris Gallagher, Field Equipment Officer, Australian Antarctic Division, March 2011. This report presents methods, discussion and recommendations in relation to appropriate rope rescue anchors and rigging systems needed for Macquarie Island. This testing has relevance to other rescue teams that need to carry ground anchors to the rescue site. […]

Rope Grab Test Report

Rope Grab Test Report

Rope Grab Test Report Grant Prattley, Lindsay Main and Andrew Welsh, New Zealand Land Search and Rescue, February 2001. Many rope grab devices are used by the rescue technician for a variety of functions in a rope rescue system. This study focuses on rope grabs used in a slow pull situation as used in a rescue hauling system to […]

Snow Anchor Report

Snow Anchor Report snow-anchor-testing

Snow Anchor Report Snow anchor testing for a variety of common anchors A report by Don Bogie, 2005. The strength of snow anchors is dependent on a combination of the strength of the snow in compression and shear, the strength of the materials the anchor is made, the strength and placement of the attachment system, and the mode […]

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