Members: Pendulum Physics
Pendulums present an interesting study of physics for rope technicians. A simple pendulum is made up of a point mass suspended by a string or rod of negligible mass. In rope systems, the mass of the swinging body
Richard Delaney Archive
Members: Rig For Lower with a Munter Hitch
Rigging with the ability to lower a load on the main access lines gives rope technicians the ability to deal with some incidents quickly and efficiently. This is known as ‘Rig for Lower’ (RFL) and has been
Two Point Anchor Loads
Most people understand that a load can be shared by two points. If the two anchors are directly above the load and equalised, they each feel half the load. Many people also know that if the two
Members: Human Drop Tests
We have done many drop tests at RopeLab over the last few years. For each test, we must make a decision whether to use rigid steel test masses, semi-anthropomorphic test manikins (like Rescue Randy), or human subjects. Often, we
Figure-of-8 Bunny Ears
The Bunny Ears variation of the Figure-of-8 knot has become very popular with many technicians as an anchor knot. It is particularly useful when attaching a single rope to two points in close proximity. Below is an