Abstract: An aerial vehicle is disclosed having a hybrid drive unit and a rotor unit wherein the hybrid drive unit includes at least a combustion engine, a generator and a first electric motor and the rotor unit includes a first rotor. The combustion engine is configured to drive the generator to produce electricity, and the generator is coupled to the first electric motor in such a way that the first electric motor is feedable with electricity from the generator. The rotor unit includes a second rotor and the hybrid drive unit includes a second electric motor, wherein the generator is coupled to the second electric motor in such a way that the second electric motor is feedable with electricity from the generator. The first rotor is driven by the first electric motor and the second rotor is driven by the second electric motor.

Abstract: The invention is directed to an aerial vehicle with a hybrid drive unit (10) and with a rotor unit (1, 1?) wherein the hybrid drive unit (10) comprises at least a combustion engine (11), a generator (12) and a first electric motor (7) and the rotor unit (1, 1?) comprises a first rotor (1), wherein the combustion engine (11) is configured to drive the generator (12) to produce electricity, the generator (12) is coupled to the first electric motor (7) in such a way that the first electric motor (7) is feedable with electricity from the generator (12). The rotor unit (1, 1?) comprises a second rotor (1) and the hybrid drive unit (10) comprises a second electric motor (7?), wherein the generator (12) is coupled to the second electric motor (7?) in such a way that the second electric motor (7?) is feedable with electricity from the generator (12), and wherein the first rotor (1) is driven by the first electric motor (7) and the second rotor (1?) is driven by the second electric motor (7?).

Abstract: In a sowing method and a corresponding sowing device for discharging granular seed onto an underlying surface for seed, seeds (K) which are present in a reservoir container (10) are removed from the reservoir container and separated by means of a separating device (20) and successively allowed to fall onto the underlying surface (B) for seed. After the separated seeds (K) leave the separating device (20) seed dressing is applied to them by means of an application device (30) during their falling movement onto the underlying surface (B) for seed.