Lets you build jetpack equipment that allows you rocket at high speeds to fly over buildings and water.
There are 4 tiers of jetpack with increasing speeds so you can fly faster. You can also add multiple jetpack equipment to the same armor to increase your speed.
Flying and hovering consumes fuel from your inventory. By default the jetpack can only burn rocket fuel or nuclear fuel. If you have AAI Industry installed it can also used processed fuel.
If you have Space Exploration installed then all thruster suits have a jetpack built in.
Try not to run out of fuel over water or you will get stuck.