I'll toss this out there too- electric used to mean small, but not anymore. Any plane that you can put a glow or gas engine into can also take a commercially available electric motor. A guy in my club maidened an electric aerobatic plane that was meant for a 100cc gas engine. It probably cost him an extra $500 to build it electric, but it's what he wanted. The plane flew well with gobs of power until the batteries started falling off around 8 minutes into the flight.