An anonymous reader writes: Solar Impulse 2, the airplane powered only by the sun’s light, has completed its flight from Japan to Hawaii. The distance sets the record for manned, solar-powered flight, both by distance (7,200 km, according to the BBC) and by time spent aloft (118 hours). This was one leg in a longer journey to fly around the world, and by far the longest they’ve attempted. Their next leg will send them across the rest of the Pacific Ocean, landing in Phoenix, Arizona. Then they’ll stop off at New York before crossing the Atlantic Ocean on their way back to the journey’s starting point, Abu Dhabi. Pilot Andre Borschberg was in good shape, despite spending almost five consecutive days in command of the aircraft. He was only allowed to sleep for up to 20 minutes at a time, so he took about a dozen naps every day. He did this at an altitude of 9,000 meters, and while taking medication to prevent thrombosis. Borschberg’s partner, Bertrand Piccard, will fly the aircraft during the next leg to Phoenix. This will happen as soon as the plane is checked out and meteorologists think the weather will be placid enough for a safe crossing.
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