The jet ski is a simple enough craft to understand ... is a large boom leading down to a hydrofoil and underwater propulsion system. It’s referred to as a “water scooter” by its creators ...

he devises a propulsion system using four powerful scuba motors, inspired by an underwater jetpack design. For steering, he cleverly mimics a toy jet ski’s dual-motor control system. The final ...

Read more: Every Major Luxury Car Brand Ranked Worst To Best Jet Skis have typically come equipped ... swapping out the 650 ...