RE: Conversion for a .61 2S?
I use an AXi 4120-14 to replace the .61 2S in several scale aircraft. I use 22.2 volts and a 12 X 8 prop and a 70ESC and the power and time in the air is just perfect. This combo pulls around a 12 pound PT-19 85 inch wingspan with ease. Also have combo in a 81' 7 pound Cub. Norm