RE: Intermediate model, first aileron trainer??
Hi G-emma,
Welcome to RC flying!
I'm glad that you have been able to fly the FF. Its not a horrible plane, but is not as good for beginners as many others. I'm sure that you will love flying the SuperCub.
The P-51 Mustang, like most warbirds, is not an easy plane to fly. In fact, many advanced "3-D" planes are easier to fly than the Mustang. One of the best aileron trainers is the Multiplex MiniMagistar (Minimag). I'm not sure if its available as an RTF, or if its only available as an ARF. The flyers that I know who have it have set it up with an outrunner and LiPo. The plane is absolutely terrific and is a great natural step up from the SuperCub.