Plane is setup for eight servos. Two mini's on elevator, two mini's for rudders, two standard for ailerons, one standard for throttle, and one standard for steering the nose gear. As PointMagu mentioned, some are using one standard servo for rudders with a link between them and some are doing mods to the stab and using one servo for elevator. If you go with the stock setup of two servos for elevator you'll need a reversing Y harness or enough channels so you can mix them to reverse one side. You'll need lots of servo extensions also or cut the leads and solder your own using servo wire (this is what I did). Tail boom servos need about 36" added and aileron servos need about 24". I know it's a lot of reading but you might want to go through this whole thread as there's lots of good info about every part of this plane. It's a nicely built ARF but there's a few areas that need some tweaking.