I saw a prototype Bearcat with a full fues last week. It was, I think, a three line bird. A standoff scale model. But the wing looked plenty thick. Perhaps we have duel purpose (or duel possibility model) like the old Sterling kits that could be rubber, could be engine powered, could be free flight, could be ukie... (Guess that would be more than two.) Someone said it was Pat Johnson design. Looked nifty.