Humongous light craft.
No idea how much it could carry in passengers or cargo. I get the idea that there was no capacity to spare, even under bright clear skies. Still, why couldn’t photovoltaics be used to help ease the fuel usage of conventional aircraft that commonly fly above the clouds? As in lightening the load on generators? It needn’t be anywhere close to a total solution to be useful.
— 28 miles in 19 hours!-—
This is progress? Sheesh.