In mid-2018 I completed my first quadcopter project with the goal of designing a own flight controller and expand the software, mainly to further and deeply deal with position algorithms. Additionally looking for new ideas for building drones,  a very rare case came across: a single-rotor drone with air vanes for control, which is based on the principle of "torque" of an RC model aircraft. This principle aroused my curiosity and it was clear to me: I would like build up something like this and get this thing flying!

First sketches emerged: