Originally Posted by bmitc64991

took off the 46-fx and installed a 61-fx the 46 did ok but left no power to pull out of trouble if you ever needed it. balance is till on the spot only had to move the battery pack from under the tank back to in front of the servo tray, g/c still at 4-1/2 back from l/e of wing. fly around at alittle over 1/4