RE: TO: GREG COVEY (...OR anyone else who knows)
Also keep in mind that Actro always esimate and specify there motors with OUTPUT power, there recomended maximum output power with best eff is abaout 1300watts continuos on 40-6 with Nicd/nimh, the motor has a low kv so you need 10s Lipo and the motor still turns props araound 20" with high %. A Actro motor equal to a Axi 4130 is the 32-x serie.