[What's_nitro?]

The only problem with using RC motors is that, since they have a small diameter rotor, you need to spin them up pretty fast to get usable power from them. This could be solved easily by using a planetary GB on the motor and attaching the windmill to that shaft. Maybe even two PGB in series if possible... I would guess that you would want 8-10K rpm on the motor to produce a decent current. Good luck with your project. I want to do something like that too since there is a lot of wind in my neighborhood but town laws are very prohibitive.