Besiege | Cannon powered engine 

You mean this? Honestly, this is the first time I've seen this robohub.org/the-monospinner-worlds-mechanically-simplest-controllable-flying-machine/

@@Besiege_games exactly

How it navigat in the air is interesting .I wanna see how you are going to make this

​@@christojojo4433I dug through a bunch of information, but I still couldn’t find something that could make the drone fly straight. The mechanism is constantly rotating and it has only one movable part - the rotor. Let's imagine that straight flight occurs due to the tilt of the body, but what is the tilt due to?