hello,
I am on the verge of buying my first RC plane. I have been looking at several; of the trainers in the .40 class and in my search I have seen a couple of ads for what is called a co-pilot. It seems to be a small disk that evidently mounts to the underside of the plane and if you get it trouble it will leve the plane for you. Do these work? Are they worth the money? There are no clubs nearby and I will most likely have to learn on my own. I would like to keep the number of expensive toothpicks to a minimal, so I was wondering if this would be a halfway acceptable replacement for an instructor.

Thank-you