In this guide, we’re breaking down the nitty-gritty of purchase systems, from the straightforward simplicity of the “simple” system to the power-packed intricacy of the “compound” system. We will also take a look at how to calculate a purchase system and the steps you should take to design your own.

A purchase system is like your boat’s backstage crew, working behind the scenes to make sailing a breeze. It involves blocks (the unsung heroes) and ropes, creating a setup that multiplies your muscle power, making sail control and rigging adjustment a piece of cake.