Solar Impulse completes 24 hour flight

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The solar impulse HB-SIA has completed its 24 hour flight (after 26 hours) by flying to an altitude of almost 29,000 ft! The EV Plane is made up of 12,000 solar cells and lithium polymer batteries four 10 horsepower electric motors. The total weight is 1.7 tons. It was flown by read more