Siehe dazu auch:
Driving towards Hydrogen Society. (c) Toyota
The Toyota Mirai visits the DLR Stuttgart and H2Fly GmbH.
In the interview you can see Professor Josef Kallo as coordinator electric flying at german aerospace center about future transportation.
Hy4 - Hydrogen electric fuel cell propulsion - zero emission passenger plane The Hy4 is the first four seater, propelled by a hydrogen fuel cell only. In a fuel cell, hydrogen and axygen is converte into electric power and water. The electric power is used for the electric motor. the only emission here is water. The advantages are, that you can reach long ranges, the short refilling time on ground (similar to fossil fuels) and of course the zero emissions. This fuel cell plane builts the the basis for a climate-friendly aviation.