Solar Impulse 2 a hundred days will fly from Abu Dhabi in order to travel around the world. Now the plane was tested in Switzerland. At the moment, the plane rose into the air 21 times: André Borschberg and Bertrand Piccard get used to the plane and get ready for the flight.
Look stunningly beautiful video made during the test flight in Switzerland with a few (established where possible) cameras GoPro.
Source:
geektimes.ru/post/241792/