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How is this possible?
What seems to be a miracle is according to Viktoria Dijakovic a simple game of physics and energy maximization.
"When HB-SIA is on the runway ready for take-off, the batteries are typically charged with solar power to minimum 50% for pilot safety. Aside from take-offs and landings where the aircraft speed is increased to
read more of this cool stuff at SOLAR IMPULSE (around the world in a solar plane)
- Richard Chai