One of the innovations at this year’s Paris Olympics was supposed to be an electric flying taxi service.
Germany’s Volocopter promised its electric-powered, two-seater aircraft, the VoloCity, would be ferrying passengers around the city.
It never happened. Instead the company ran demonstration flights.
While missing that deadline was embarrassing, behind the scenes a more serious issue was playing out – Volocopter was urgently trying to raise fresh investment to keep the firm going.