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 the ribs. You can glue it to get bottom or top-side wing access. The bottom access is preferred, but if you decide to fly your FunStik without the undercarriage (belly landing it on a grassy airfield) it is safer to place the servos and aileron linkage on the top side of the wing.