The Solar Impulse (Si2) solar-powered aircraft has broken the world endurance record for solo flight as it inches closer to its destination of Hawaii following an arduous journey across the Pacific in conditions described by the pilot, Andre Borschberg, as "difficult". Borschberg has been at the controls non-stop for more than 100 hours, having taken off from Nagoya in Japan at the weekend ...Den vollständigen Artikel lesen ...