Translations:KAVAN FunStik 1280mm kit - Instruction manual/27/en

From KAVAN RC Wiki

13. Glue the aileron servo box assembly between the ribs; sand it flush with the edges of ribs. You can glue it to get bottom or top side wing access. The bottom access is preferred, but if you decided to fly your FunStik without the undercarriage (belly landing it on a grassy airfield) it is safer placing the servos and aileron linkage on the top side of the wing.