eletric motor bolt direcly to tranny and to mount brackets. electronics are all prewired and simple install. gas engine does nothing more than charges 3 large deep cycle 12v batteries wired for 36 volts. the 12v system is not compromised by the 36v system and is also charged by an alternator. within a half a day i can replace the electric system with the original 400 which will be crated in the garage.
is it any worse than putting a chebby motor in your bird ?