© Solar Impulse / Pool / Keystone / Dominique Favre

... André Boschberg (pictured right with Bertrand Piccard after landing) climbed to over 9,000 meters and charged the batteries. After sunset, the aircraft initially descended to an altitude of 1,500 meters during the night without engines and then used the power from the batteries to maintain its altitude until sunrise. With this flight, the Solar Impulse 1 set three records: in absolute altitude (9,235 m), in altitude gain (8,744 m) and in flight duration (26 hours, 10 minutes and 19 seconds).