A DIY Drone Flies with Just One Propeller on a Finned Body
This homebuilt drone flies using a single propeller mounted above a finned body, rather than the multiple rotors commonly seen on small drones.
Its maker, jyjblrd, has published modified flight-controller and motor-controller firmware, along with 3D design files for the body and propeller parts, on GitHub.
Most small drones spread the work across several rotors. This design gives the job to just one—and moves the engineering challenge somewhere else.