Test results of the different boat propeller designs. (Credit: rctestflight) Interestingly, the 2-blade FDM-printed propeller ended up performing the best, while the bi-blade design (with two sets ...

About Sharrow Engineering and Sharrow Marine Sharrow Engineering, a Detroit-based advanced engineering and design firm, revolutionized propeller ... Miami International Boat Show Innovation ...

Rather then driving a propeller, the Tesla turbine instead turns a Lily impeller, which pulls the boat through the water rather than pushing it along. The impeller uses a nature-inspired design ...