You know 70, there is a forum at the bottom of the header bar called Wattflyer, all they speak is electric and there is one fellow over there that builds and converts the small rubber band planes as a specialty. They do a lot of the small planes like you built. You are in the kit building forum and you did build a kit but you can expect a lot of BS about it not being a real plane due to it's size. Right or wrong. I have converted a couple of small 1/2A kits to electric but I haven't built anything as small as your plane and tried to fly it. Fact is it is a hand full to fly at the best of times. When I have problems with any of my electric planes I do go into the Wattflyer forum. The folks there are much more help then here on RCU and I try to refer people over to that site.
There are a few people here that fly the little planes but nothing at all compared to the Wattflyer forum. Do yourself a favor and go take a look at that site for anything in the smaller class of electric planes. I think you will be impressed and have better luck. It's a bit more basic too. If you didn't understand the question about the air foil you maybe should have looked in RC terms, it was basic speak. That sort of told me you may be a bit over your head here?