Lire sur
http://psk.blog.24heures.ch/archive/2017/11/29/airbus-et-rolls-royce-et-siemens-preparent-l-avion-hybride-864803.html
https://www.siemens.com/innovation/en/home/pictures-of-the-future/mobility-and-motors/the-future-of-mobility-e-fan-x.html
