Thin symetrical is the best. Forget flat bottom types. Flat plate (not plank) works fine for sport flying. Search for "Magnum 40" I think it is for a 40 powered sheet wing speed fun model. The engine will do the job but you'll probably have to play with the props. It all depends on how fast the TT46 can spin that 9x8 or whatever prop you use. Testing is in order. Don't ask me which prop because I don't fly that size engine. The wing is what's on trial here. For more prop info go ask in the Extreme Prop Planes forum.

Look up pics of Formula One models and Quickie 500 models. That's what they are talking about.