Testing a TOROIDAL propeller UNDERWATER
24:08
Testing 8 Innovative New Boat Propeller Designs
11:48
The Unexpected Genius of Bionic Propellers
3:46
Cooling Fan: Toroidal vs Normal
12:51
MIT Thinks you're STUPID - Toroidal Propeller Snake Oil
17:05
We 3D printed a submarine (dives down to 85 meters / 280 feet)
11:09
Sharrow Propellers (2022) - Test Video by BoatTEST.com
10:13
How Do Zipline's Silent Propellers Work?
11:36