Gotcha. I think. It sounds simple enough. My plans are to use a 4.8v 2000 mah NiMH battery that I already have on hand for the ignition. I will use 2 2300mah A123 batteries for the reciever, one plugged into a switch then into the reciever and then the other battery plugged into a second switch then into a Y harness that runs from the throttle port on the reciever to the throttle servo. With the dual reciever batteries I can run my Sullivan smoke pump "if I elect to use it" without having to add another battery pack dedicated to the pump. Does it sound like it will work. Now, with this larger plane can I use a HD Y harness for the aileron servos. I know I will use 2 reciever channels for the elevator servos. The 7 channel reciever will be full. Throttle, ailerons, elevator, rudder, elevator, smoke, battery.