I just bought a used RC Plane with what I believe to be an Older model Thunder Tiger 40 Trainer. The engine has 40 on one side and GP on the other. Since this is my very first ever RC Model, although I've wanted to try R/C planes for years, I have no idea what I have.

The plane has World Trainer 40H across the top of the wings if that helps any.

Thanks!!

You have a Thunder Tiger GP40. They don't make it anymore but it was pretty good as far as bushing type 40's go.

Run some fuel with a little castor oil in it.