With this 5:1 pulley system the user is required to apply an effort of only 20kg to lift the 100kg load. Notice that when the end of the rope is attached directly to the load this usually results in a mechanical advantage with an odd ratio.
When the end of the rope is attached to a fixed anchor point this will normally result in a mechanical advantage with an even ratio.
Angular vector forces occur when ropes are passed through a deviation or a directional pulley. Dependent on the angle created, this can have a multiplying…
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…
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…
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…
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…
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