pull tests Archive
Traditionally many have considered the Alpine Butterfly knot to be a mid-line knot rather than an end-line knot. This report considers its use as an end-line knot. Note: Follow the following link to see a previous discussion
I have heard many justifications for the choice of a Figure-of-9 knot over the Figure-of-8 knot and they normally come down to: “Easier to untie after heavy loading”; “Stronger” (maintain more of the strength of the host
I purchased a pair of Petzl TibLoc “Ultra-light emergency ascenders” in 1999 when I was working as a climbing instructor. I liked the idea of a simple rope-grab that was compact and thus maximised the very short
In 2015, RopeLab conducted some tests on Sterling rope’s 5.9mm PowerCord. I was interested in its use in anchoring and guying systems and wanted to see how it performed when knotted. The tests results are published in
We have had a good selection of 8mm nylon accessory cord for decades however these cords have never been seriously considered to be ‘ropes’ for technical rescue because they have had serious limitations in strength and abrasion
