Tag: Rope Rescue

Lightweight Jigger Testing

Lightweight Jigger Testing Lightweight Jigger Complete

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 a Dyneema core with a polyester sheath. We also address the weight and volume of a jigger to compare the lighter weight version with a standard version using a 6mm Prusik […]

Testing the Figure-8 Device Block for Canyoning

Testing the Figure-8 Device Block for Canyoning

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 such as the Munter mule overhand and figure-8 on a bight. Efficiency tests (speed) to find out if there is there any major differences in tying methods. Practical use comparisons […]

Back-tie rigging – tension and compression forces

Back-tie rigging – tension and compression forces RRRFG pg 65 backtie rigging

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 forces for a post, pole or tree when you back-tie for support.  The context? Before I get to the question, we need to set the context:  The front anchor is […]

Let’s lighten the load – update

Let’s lighten the load – update Two Rope Drop Testing 2

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), we started our journey towards asking the right questions about rope rescue. Could we lighten up our backcountry rope rescue gear while keeping acceptable safety margins? For lightweight rope rescue, […]

How much friction for your device?

How much friction for your device? Friction Testing

How much friction for your device? We were interested to know (as a guide) how much a lowering device can hold for rescue in particular but also personal use. The testing is for practical use when out on a rescue, training or instructing a group about how much it can hold in relation to: the […]

Life on the edge: testing the edge kit

Life on the edge: testing the edge kit Edge Kit 4on2 Drop Test Factor 1

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 (Prusik on a Prusik), Prusik hitch 6mm on 8mm cord and double overhand (scaffold) hitch onto a carabiner. There has also been an assumption made that the edge kit would […]

Forces on an inclined plane and Tippy the tip truck

Forces on an inclined plane and Tippy the tip truck

Forces on an inclined plane and Tippy the tip truck How do you figure out the forces is a common question I get when teaching a particular subject. None more so than those on an inclined plane (or slope). Rather than getting onto the whiteboard to explain, from time to time, I bring out Tippy the […]

get the
top 5 rescue
checklist

Moments away

Want to be ready for rescue?

Get clarity, organised and practised