A fumigation device suitable for agricultural purposes, using aerodynamic hovering without touching the ground, which operates autonomously or under the supervision of a remote operator, comprising at least four rotors individually operated through energy generating devices, with a constant rotor speed, being the only control variable for the whole flight steering. Since the device only operates in ground effect, it is fair to say that it is not exactly an airplane； in addition, it does not carry crew, and it only operates within rural areas as other agricultural machines, being able to be transported on a trailer； therefore, it would operate outside the rule of aeronautic regulations. It has full redundancy of systems both for thrust and control. Any of the components can stop functioning or start to function erratically, avoiding life loss, since it simply activates an alarm and makes the aircraft stop with the rest of the available redundant systems, without entailing a loss of the steering command, not even momentarily.
