The 1:1 Redirect Pulley System
In the illustration to the right we have a rope attached to a load weighing 100kg. The rope has been passed through a pulley which…
Pulley Systems
Pulley systems are used to provide us with a mechanical advantage, where the amount of input effort is multiplied to exert greater forces on a…
Knot Terminology
Knot tying has several commonly used terms. The ancient Latin word for knotting is ‘nodology’, the Greek referred to this art as ‘kompology’. These references…
Fall Factors
A fall factor is a simple representation of the severity of a fall. It can be used to evaluate the potential loadings exerted on the…
The 2:1 Pulley System
If we take a 1:1 system and turn it upside down it will result in a 2:1 mechanical advantage. Instead of the pulley being attached…
Vector Forces
Vector forces become apparent whenever there is an internal angle greater than 0° between two or more rigging components or anchorage points. For ease of…
