5:1 Pulley System with a Petzl Reverso

This video demonstrates how to set up a 'Complex 5:1' with a Petzl Reverso. The word 'complex' in this context does not mean it's complicated- it simply refers to the fact that the 2:1 pulley was incorporated inside the 3:1 to add up to a 5:1. If the 2:1 was on the outside, it would be a 'compound' pulley and would create a 6:1. (note: we will post other videos that will explain these fundamental concepts soon. If you are interested in more info on pulleys, subscribe to the SIET channel!) Note that the Reverso acts as a 'progress capturing device' as it allows slack to feed into the device but not back out, much like a one-way valve. However, it adds quite a bit of friction to the system. With a 3:1 pulley, it is very difficult to haul someone for more than a few feet, and that is if you can haul them at all. The 5:1 shown in this video will allow you to increase the mechanical advantage and haul with more ease. This video was reviewed by 2 or more AMGA Certified Guides and/or SIET Instructors and produced by industry professionals. However, this video may contain misinformation, may lack important details, may assume a certain knowledge base by the viewer, and is not intended for novices. SIET and it's employees and affiliates, recommend professional training for anyone taking part in mountaineering/climbing/skiing activities and attempting to implement skills demonstrated in these videos. Videos produced by SIET should not be used as a substitute for professional instruction! http://expeditiontraining.org/