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
![World's First Bi-Rotor Ducted Drone Looks Like a Flying Donut Made for GPS-Denied Areas - autoevolution World's First Bi-Rotor Ducted Drone Looks Like a Flying Donut Made for GPS-Denied Areas - autoevolution](https://s1.cdn.autoevolution.com/images/news/worlds-first-bi-rotor-ducted-drone-looks-like-a-flying-donut-made-for-gps-denied-areas-174651_1.jpg)
World's First Bi-Rotor Ducted Drone Looks Like a Flying Donut Made for GPS-Denied Areas - autoevolution
![70mm Edf Duct Fan Brushless Motor | Edf Ducted Fan Motor | Electronic Ducted Fan - 70mm - Aliexpress 70mm Edf Duct Fan Brushless Motor | Edf Ducted Fan Motor | Electronic Ducted Fan - 70mm - Aliexpress](https://ae01.alicdn.com/kf/S67a2b7b9a6a14972badbc5d2a273a54fK/Qx-Motor-70mm-Electronic-Ducted-Fan-12-Blades-EDF-With-2827-KV2600-Brushless-Toy-For-RC.jpg)
70mm Edf Duct Fan Brushless Motor | Edf Ducted Fan Motor | Electronic Ducted Fan - 70mm - Aliexpress
![Voyage Aeronautics VA-2140 Ducted Fan Aerial Drone-Hand Gesture- Blue Color, Size 3.75 inches - Walmart.com Voyage Aeronautics VA-2140 Ducted Fan Aerial Drone-Hand Gesture- Blue Color, Size 3.75 inches - Walmart.com](https://i5.walmartimages.com/seo/Voyage-Aeronautics-VA-2140-Ducted-Fan-Aerial-Drone-Hand-Gesture-Blue-Color-Size-3-75-inches_7c57bc18-576c-4852-ad59-8de8a7a7a941.56c0acfd42b7eca998602c1e9da8df97.jpeg)