Richard Delaney Archive
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
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
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
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
Technicians regularly use toothed-cam ascenders such as the Petzl Croll. For climbing ropes, the chest-mounted Croll is normally used in conjunction with another handled ascender and foot loop. Technicians are generally taught to ensure they are also attached to this