I guess i really didnt specify the plan well enough earlier. The basic idea is to make a pusher/puller plane. It will be electrically powered, so we just have to wire one of the motors with reverse polarity (or just turn it around so it is facing the opposite direction). We wanted the reverse rotation prop so that we could use it as a pusher in addition to the motor in front acting as a puller. This way, we would have double the thrust, with no resultant torque on the airplane.