7-8 July 2010 HB-SIA prototype made its first 26-hour flight. The plane, piloted by Andr? Borschberg took off at 6:51 am (UTC +2) from the airport in Payerne, Switzerland. He returned to the airport the next morning at 9:00 am local time. A remarkable event. But few people remember it all started. Americana began to develop the aircraft using propulsion system works solely on solar energy. And he called the Helios solar powered.