Can we make a quad-copter with a ducted fan and make it perform basic functions? What is good for a quad-copter, ducted or just normal propellers? Why? - Quora
Figure 3 from Ducted Fan UAV Modeling and Simulation in Preliminary Design | Semantic Scholar
Different examples of ducted fan types. | Download Scientific Diagram
Cleo Robotics Cracks the Code for Ducted-Fan Drone Tech
Uses Ducted Fan Technology Rather Than Exposed Rotors
Fleye Ducted-Fan Drone now on Kickstarter - YouTube
Nano Tornado drone swaps props for ducted fans
Ducted Fan Quad Copter by InlineTwin - Thingiverse | Drone design, Drones concept, Drone technology
A Safe, Ducted Drone With No Visible Blades | Hackaday
Ducted Fan Drone Uses 1 Rotor For VTOL | Hackaday
Ducted Fan Design: Is It Worth It? - Discussions - diydrones