english: Every vehicle is equipped with an automatic payload and battery exchange mechanism, so these vehicles navigate to those ground stations, they dock, swap a battery automatically, and go out again.
non_english: Svako vozilo je opremljeno mehanizmom za automatsku zamenu tereta i baterije, tako da ova vozila lete do stanica, prikače se, automatski zamene bateriju, i potom idu dalje.