In this quick lesson, we're talking about 2:1 mechanical advantage (link in bio for 3:1 systems). We'll be looking at how to build a 2:1 MA system to quickly haul a load up a river bank. The minimum you need to set up a 2:1 system is 1 pulley, 1 carabiner, and a rope to haul with. You can also use the system to help deal with pins and wraps quickly. If you want to learn more about Mechanical Advantage check out our Intermediate Rafting Series: www.raftingmag...