Cue the development of the 3D printed water jet engine ... This turbine, in combination with stator fins, forces the water through the outlet, propelling the boat forwards in the process.
The boat uses compressed air for propulsion, stored in a battery of four soda bottles, pressurized to 6 bar. The compressed air is used to drive a Tesla turbine of [Integza]’s design ...
The Oregon State Marine Board outlawed fast-moving jet boats on the Upper Rogue River after a long and contentious battle.