The best panels produce now 44.8 % max and best on aeroplanes than are thin and bent 22.8%. Their weight has gone down 50% since Paul MacCready times.
You are right about the size…therefore I squeezed it tighter…here is the most efficient and lightest concept’s specs that I was able to come up with.
Take off power on a sunny day 10 hp/person in a plane lighter than any glider ( and 1/3 of the drag per person of any glider ).
This much extra power actually makes the flight in cloudy day possible and as long as the batteries allow in a rain too….ie flying from 9 to five in countries where the sun rises pretty high at noon.
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