I gather from other posts that this may be a small rubber power conversion. I made a quick sketch that may clear things up. The top being a typical wing section with a leading edge, spars and a trailing edge. I added an aileron to illustrate the bevel in the aileron needed for movement. The second illustration shows a couple different types of hinging that can be done on small models. If you bevel only the underside of a surface it can be hinged with tape. A product called Blenderm is used quite frequently for this. Just below is a method I have heard of just recently. Some guys on small models have been drilling small holes in the surfaces and inserting monofilament fishing line and securing in place with a drop of thin CA ( super glue ). The last is half of a stabilizer that has a stabilizer trailing edge added along with an elevator leading edge. The two come together at the hinge line. I hope this clears things up some.