Last Test Flights Of Solar Impulse 2 Before #RTW Takeoff (Video)
Originally published on 1Sun4All. Bertrand Piccard and André Borschberg have each flown a final test flight in Solar Impulse 2 (Si2) prior the departure on the first leg of the 1st round-the-world solar flight. Bertrand flew the flight last night and said via twitter, “Flying at night with solar power reminded me how clean technology can open new opportunities in … [continued]