Once I had the recess in place, it was easy to glue the fiberglass sheet hinge in place.

The fiberglass sheet is pretty smooth stuff, so I was worried about glue sticking to it. I roughed up the bottom side of the hinge pretty good with 120 grit sand paper. I then cleaned the hinge with isopropyl alcahol to remove the residue.

Once I was satisfied with the fit of the hinge into the recess, I mixed up some 20 minute epoxy, and lightly brushed it in place in the recess. I stuck the hinge on the epoxy, and carefully taped the hinge in place making sure that it firmly was attached to the wood with a good glue seal.

After I got both sides glued and taped, I flipped the wind upside down (top of the wind down) and placed it back into the foam shuck. I added quite a bit of weight to the bottom of the wing, and let it sit overnight to make sure the glue bonded properly.

Here is a picture of one of the ailerons after I removed the tape the next day.