Hello,

I am in process of building Hobby Shack Super Sport Trainer 40 (SST 40). I am trying to finish this.

Wing is pretty much built. Only things left is fiberglass center, covering and installing aileron. I have Airtronics DSM8000 2.4ghz radio (no servos or RX yet) as per earlier review in this forum. I would like to have dual servo setup for aileron for ease of trimming.

I am debating how I go about this.

Option 1) install 2 servos in the center of the wing and box the opening and run torque rods to the ailerons.
-problem with torque rod that came with the kit is too short by at least 1 inch. I will have to build it out of music wire.
-problem is that there is a possibility that its too sloppy and be warping the surfaces.
-cutting a hole in fiberglass seems introduce a weaker area? How to resolve this adequately?
-it will be a cleaner install with no exposed opening and thus no exhaust gases going into this.

Option 2) install servo further out in the middle of wing under a hatch with arm sticking out. Run linkage to aileron directly
-problem is that more weight out the outboard creates possibility of added stress to diehedral area.
-problem is exhaust gas can go inside the opening where the arm sticks out
-it will be more crisp control -no fluttering.

Option 3) install servos in center like option 1 but use bell crank in the middle of wings like option 2.

Option 4) forget all others and just drop in 1 servo and use torque rods as called for in the plans.

The aileron will be hinged with CA hinges and pinned. Another thing... when I put the wing on built fuselage - I noticed that the trailing edge of the wings are sitting on top of the fuselage by 1/4". The wing does not touch the fuselage saddle anywhere from leading edge to trailing edge. It looks like I will have to do some trimming either to the top sheet of fuselage or the wing to allow the wing to sit in saddle correctly. How important is the angle of the wing in this trainer? My plans did not call for the angle of wing at all. I will do epoxy the wing saddle to fit the wing better later.

Thanks.