Futaba “Skysport 6A” (FP-6VA) 6 Channel 4 Servos Airplane Radio ControlThe SkySport, is a full NiCad radio system that included all channel servo reversing and some mixing capability without being a full blown computer radio. You can mix elevator to flap and include aileron differential as switch options on the transmitter. The SkySport comes with 4 standard servos. All original equipment plus Skyport 6A Instruction Manual. This radio has: Elevator flap mixing Aileron differential Includes choice of AST for 4 channels or