Here's video of our GP Super Stearman converted to electric power:

http://media.putfile.com/RC-Big-Electric-Biplane

This flight video was with a setup that was producing 2000 watts at 55 amps. Recently after dismounting and reworking the same components I'm only getting 1,300 watts at 40 amps. Same Axi5330-18, same Jeti90, same two TP5300 mAh 5s lipos in serial driving a 21" prop. I don't know what's wrong with the new setup but I know it won't fly very well with 1,300 watts in a 17 pound AUW. I'm going back to the drawing board.