Richard Delaney Archive
There more to measured pulley efficiency than just consideration of the physical bearings or bushings on the axle. This report considers the effect of losses within the rope.
Tuomas Pöysti, a good friend of RopeLab, has written this article presenting his thoughts on analysing pulley systems.
There is a growing awareness of the benefits of dual main over the more traditional single main/single backup rope systems. Single main/single backup systems normally see the task undertaken using a main rope with another backup rope
There are many ways to tie a single rope to a pair of anchor points. The two methods most commonly used are: the Alpine Butterfly & Figure-of-8 “Y-hang”. the Figure-of-8 bunny ears knot. You need to login
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