RE: Super Stearman
We've just returned from our 4 and 5th flight of our Great Planes Super Stearman which we converted to electric power using this setup:
Axi 5330-24
Jeti 90 ESC
two, Thunderpower 5300 mAh 5s 18.5 volt lipolys in series
Mejlik 21" carbon prop
Performance? The plane is fully aerobatic but not 3d. Straight up vertical is probably 100 feet which is more than scale I'd bet. I took some video and I'll try to post it.