I converted a Sterling Fokker D-VII from glow to electric. This is one of the old sheet balsa 1/2A kits. The motor was a Turnigy 2211-2300 http://www.hobbyking.com/hobbyking/store/uh_index.asp, 10 amp esc, either a 2 or 3 cell 350 mah 25c battery and a timer from http://www.horizonhobby.com/(the same one they sell for thier electric CL PT-19.) The motor pulls 7+ amps. I use a GWS 6x5 on the 2s, and a GWS 5x4.3 on the 3s battery. It flies slightly bettter with the 6x5 prop.