RE: Ziroli Skyraider Build
Next three pictures show the wings after sheeting. You can see the open area for the aileron servo and the holes for the wing pylon mounts. Second picture shows the flap hinges. Simple but work pretty good. Once again the laser cut kit gave me fits with the light ply they used for the flap hinges coming out of the wing. I broke several of these off before I finished. I had to do some hacking to cut them out and replace them with higher quality wood.
Third picture just shows the hole the flap servo goes into. For the hatch cover it will have a thin plywood base that goes in the hole first and then a bals cap over the plywood so that it can easily be sanded flat with the rest of the wing.