I have this keen vision of a helium blimp powered entirely by solar panels, not even carrying a battery bank.
That would save it from being a "fly by night" (haha!), which is just as well, but what it would require is enough solar panels to power a little electric motor (I am hoping to bring it up to maybe 70km/h, or 45mph) - and they would need to be extremely light, of course.
Is there anything out there, or on the horizon, that might do it?
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