Testing 12 Ultra Efficient Electric Boat Propellers
38:07
I Found the Most Efficient Propeller Design - Competition Ep. 3
25:50
I Built a Powerful R/C Tow Boat
36:57
Testing Futuristic Propeller Designs on my Solar Powered Boat
30:09
I made a precision gearbox - with NO GEARS.
26:07
L'avenir des drones : des innovations INSENSÉES
16:47
I Build RC Fighter Plane with 3d Printed EDF #aeroplane #3dprinting
29:54
Unboxing my $1,000 ELECTRIC boat from China
11:48