Planes are interesting. The hardest work a plane does is take off, flying in the air is a piece of piss and relatively conservitive when need be. The only factor is the sheer weight that the commercial ones have. It certainly wouldn't be like a glider, it would require some power to keep it aloft. I doubt solar would ever be considered, you could cover the entire plane in panels and it'd still plummet to the ground.
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She thinks I'm a reclusive genius, she's going to be very disappointed when she finds out i'm a reclusive w anker
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