I have a Midwest Super Stinker that is RTF. The engine, I'm pretty sure, is a US41 with manual choke. It only has 5 min of run time to test the engine and it ran great. The servos are all Hitec digital. The airframe is in excellent shape but there are a few flaws in the covering, I would say 8/10. After battery, fuel, and a good pre-flight it should be ready to fly. If you have any questions or would like additional pictures please let me know.