Simply Jetpacks is a mod that depends on thermal expansion, that is, it is an add-on that uses the functions and machines to be able to create and use Jetpacks in our Minecraft worlds.

There are several types of propellers that we can use to fly through our worlds, each with its respective functionality. The energy system used by these jetpacks is the “Redstone Flux”, an energy system that will provide us with the Thermal Expansion mod.