I used 2 40a 4s escs with 2 5 inch fpv drone motors for power, along with a small servo for steering and a pwm reciever. The skirt is made from a trash bag and attached with duct tape, and it needs weight on the back to balance out the battery. This doesn't work great because of the rotating torque the lift motor puts on it, but once it is moving and the rudder is more responsive it is controllable.