Depends on your radio and whether its set for acro or glid or acro/glid. I have a futaba 9C transmitter. I am flying a Hangar 9 Arrow using a hitec 6 channel rx.
Here is what is hooked up on the rx...

chan 1 aileron servo (only 1 servo for the ailerons for this plane)
chan 2 elevator
chan 3 throttle
chan 4 rudder (I also have the other side of the servo arm connected to the front wheel for taxi'ing)
chan 5 not used (although if you have 2 aileron servos, the 2nd one plugs in here)
chan 6 rx battery

Like I said, it depends for ailerons whether your running two servos and whether the tx is setup for acro or glid.
Just make sure you test your controls first before actually flying it.

Dave...