Comment Re:With REALLY Huge Fans... (Score 1) 280
And that's why I finished my post with the following: "It's probably not a practical solution currently. But as efficiencies increase, it's at least feasible it may be at some point in the future."
Nope. There is a fixed amount of sunlight hitting the surface of the airplane. Well, more-or-less fixed - the sun's output varies slightly.
There is not enough energy in that sunlight to power a passenger/cargo airplane. Even with 100% efficient panels.