Toroidal Propellers: A Quieter Future for FPV Drones? - Oscar Liang
The toroidal propeller: a game-changer - The Royal Gazette | Bermuda News, Business, Sports, Events, & Community
Toroidal propellers: A noise-killing game changer in air and water
Toroidal RIE: (a) ionic propeller design with actual pin positioning... | Download Scientific Diagram
STL-Datei Toroidalpropeller für Außenbordmotoren wie Mercury, Yamaha, Mariner, Tohatsu 9.9-20HP (fertig zum 3d-Drucken)・Design für 3D-Drucker zum herunterladen・Cults
MIT Researchers Develop Quiet and Less Annoying Sounding Drone Propellers | CineD
toroidal propellers turn your drones + boats into noiseless machines