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In cave rescue, we had been using the Double Sheet Bend for rigging – being easy to adjust, especially in the middle of a rope
What’s in this post? We review how to set up 8mm Prusik loops for 10mm rescue rope. Context Prusik Loops are tied with 3-wraps (3-on-3)
What’s in this post? This post is about the theory and testing behind why making a piece of webbing into a sling is 2x the
What’s in this post? Testing of a lighter weight jigger (4:1CD/5:1 pre-rigged pulley system) using a 5mm Prusik and a 6mm high strength cord made with
What’s in this post? The basics for webbing anchors: So you know why you are using webbing anchors, what to use, set up and four ways
What’s in this post? Slow Pull testing the figure-8 device block variations with normal loading and incorrect loading. We also compare this to baseline methods
Canyon Rope Rescue Testing 2021 In February 2019, a team of people from the NZ Canyoning Association got together for a weekend to discuss setting
What’s in this post? The question we are going to answer in this post is: When you drill a hole through a rock and thread
Webbing in hangers The question we are going to answer in this post is: Is it ok to rig using webbing directly into new bolt
Back-tie rigging – tension and compression forces The other day I had a question come through about how I worked out the tension and compression
Let’s lighten the load – Update. After a particularly arduous 24hrs underground and 1000m of hauling on a deep cave SAREX (Search And Rescue EXercise),
Introduction Floating anchor: but what if the anchor blows? Isn’t it going to rip the other anchor out? I hear this as a common statement
Introduction As part of writing the Canyoning Technical Manual, I needed to find out more about flat bends. For my own peace of mind, I had
How much friction for your device? We were interested to know how much a lowering device can hold for rescue in particular and personal use.
Introduction We have used an edge kit for several years. Over this time, I have never done any testing on the combination of Purcell Prusik
At Over The Edge Rescue we have some great ideas to share.
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