“…On the first flight, the aircraft, which has a wingspan of 18m (59ft), flew for more than two days before it developed a fault. The second, shorter flight was curtailed when thunderstorms threatened the propeller-driven plane.

“What was proved - and what was a world first - was that the aircraft was flown using its solar electrical power system through two complete diurnal cycles…The aircraft was flown on solar power and charged its batteries during the day, discharged its batteries during the night, and remained aloft the following dawn when the cycle was repeated.”…” Full Slice

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