His latest creation is a racing paddle boat, but its performance left [Ivan] with a need for speed. Cue the development ... the device to other water jet drives on the market.

After the rough shaping is done, he cuts out a huge hole in the back of the board for the jet drive. This drive is ... by some beefy motors and a robust speed controller that connects wirelessly ...

but the jet drive comes with serious limitations. One significant limitation is the vehicle's need to reach a certain high speed before the airflow can start the jet engine. Additionally ...