Richard Delaney Archive
UPDATED: This is an updated version of a report, Members: Rope Stretch, originally published in 2015. Many new rope samples have been added as well as a brief discussion of the viscoelastic properties of synthetic kernmantle rope. Synthetic
In early 2016, I wrote a short piece on Fall Factors. It is published as the article, Fall Factor. It was a brief article with a standard definition and a discussion of each of the following scenarios.
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
Tension load cells are not new, however traditionally they have either been heavy steam-gauge style machines or complex combinations of electrical components that seem more at home in a science lab than out on a roping job.
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