1A NASA B X57 Maxwell C The Armstrong Flight Research Center
2 One hour, the batteries do not last longer.
3 It reduces operating and maintenance costs.
4 It gives the plane more stability.
5 The plane is emission-free during cruise mode.
6 They practice by using a simulator to prevent surprises.
7 Yes, there are a handful of electric airplanes on the market.
8. It could be used as an air taxi service (or other urban mobility applications).
9. It means moving around in a city.