And one more niche area.. Electric engines do not care about low oxygen, going up and down from coastal areas to high altitude Andes is economically achievable. Going from a place like Lima to Jauja in Peru can take 12 hours on a road, but barely 45 minutes by plane.
An early attempt with a Pipistrel sinus motorglider
* going back down to the coast requires very little engine time :)
An early attempt with a Pipistrel sinus motorglider * going back down to the coast requires very little engine time :)
https://www.youtube.com/watch?v=UOB8yzieYcs