A new Swiss aircraft will be the first to fly night and day without the need for any external source of energy. All its power needs will be met by the nearly 12,000 solar cells mounted on top of its wings. And those are pretty large wings too, mind you. The span is about the same as a Boeing 747, which stands at about 229 feet.A new Swiss aircraft will be the first to fly night and day without the need for any external source of energy. All its power needs will be met by the nearly 12,000 solar cells mounted on top of its wings. And those are pretty large wings too, mind you. The span is about the same as a Boeing 747, which stands at about 229 feet.
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