A. A radio featuring only one aileron channel(like the T8FB supplied in the RTF set): Connect both two aileron servos to a Y-cable (not supplied in the kit). The aileron Y-cable is to be connected to the aileron channel of your receiver (CH1 in the case of T8FB).
B: A radio featuring 2 independent aileron servo channels: Use two 20–30 cm extension cables (not supplied in the kit) to connect aileron servos to your receiver. Typically, CH1 and CH5 or CH6 – it depends on the transmitter and its setting. Please refer to the instruction manual of your radio.