Members: Device slip
Can we rely on devices to slip on ropes at predictable forces given the possible range of physical and environmental conditions? Here we test the Petzl Shunt on several different ropes.
pull tests Archive
Members: Cantilevered tripod tubes
Details of a set of tests on 6061-T6 aluminium cantilevered tubes assessing the relevance of theory to observed test results.
Members: Old Slings (2)
A new set of tests checking the strength of some Nylon and Dyneema climbing slings which are more than 10 years old.
Members: Alpine Butterfly as an end-line knot
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. You need to login to view the rest of the
Members: Fig8 vs Fig9?
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