ORIGINAL: Someone11-RCU
CA Models has the hole cut out big enough so the entire servo can be placed in the wing... which leaves only the servo arm above the wing. So what I'm thinking, is that I can sheet the interior walls, and then install hardwood blocks on the ends of the box, which allow it to screw into. Here
's a pic of what im working with....
Someone - That is the way to go. You want to box up the entire hole and then epoxy in 1/4 square hardwood stock as servo rails. This is typical of CA models. I do this in my GS CA kits and it works flawlessly. Without the torque boxes, the sheeting by itself is not strong enough to hold the servo torque over time and it will fail. Build the torgue box with 1/16 balsa, using epoxy to the foam. This is bullet proof.
Make sure you don't put the servo so deep in the hole that your ball end or whatever you chose to attach to your arm interferes with the wing skin.
DP