RE: Rip stop on air devil
Duct tape is extremely heavy and not worth the weight, IMHO. We used to use ripstop on all our combat planes. IT is indeed very tough. BUT it is also more difficult to repair, and it tends to lift if you fly in the wet (ie damp/dew in the morning, on/off rain, etc.). When you have a midair in combat, a lot of times the foam wing core will crack or break. It's often repairable by injecting some PU glue into the cracks. with ripstop, this is tough because you don't want to cut out a patch of the covering. Whereas with a tape covering, you can remove a small area, fix the core, and retape. Tape is also lighter. For these reasons, and others, we have stopped using ripstop and gone fully over to tape. Durability does suffer a bit, but repairability increases, so I think the tradeoff has been good, plus the lighter weight, and not having to deal with the lifting issue.
If you really want to try ripstop nylon (RSN), the way we used to do it that worked pretty well is cut your ripstop out, soak it in warm water while you coat the wing with water-based polyurethane (WBP). Have the ailerons attached, with strips of masking tape, or conentional CA hinges (your choice), and use the RSN as the aileron hinge. take the RSN out of the water and shake off the excess. Then lay it on the wing, and brush it on with more WBP. Do one side at a time, overlapping over the LE (the RSN won't make the "turn" over the TE so you'll have to just let it hang over the edge, and trim off when dry). Now you have a living hinge of RSN, but it will separate so you need to stitch down the hinge line with some strong thread, to keep the hinge together. NOW you will have a nearly bulletproof hinge.
good luck and have fun