Watch a brilliant homemade twin-propeller boat come to life—built from simple materials, engineered for performance, and tested for real speed on water. No fancy parts, just smart hands and solid ...

Experimenting with futuristic propeller designs on my solar-powered boat to improve efficiency, speed, and handling. Watch ...

For 50 years, Danish company Gori Propeller has been one of the foremost names in folding marine propellers used on sailboat auxiliary motor drives. These propellers fold into a streamlined form when ...