I've been teaching from a KISS principle for the last 15 or so years.

The principle is virtually NO ONE who wants to learn to fly an RC plane wants to or NEEDS to learn ANY aerodynamics theory. I teach the simple mechanics of how to get the plane safely in the air and back down again in one piece. If they want to talk aerodynamics and phyics they can go learn that on their own...LATER.

My proof; I once taught a B-727 captain to fly RC in 15 minutes. He solo'd on his second flight.

If your students aren't flying virtually by themselves after two hours of stick time then you are doing something wrong.

I teach almost exclusively on the Kadet LT 40 with ailerons and through a buddy box.

The club has three planes we use for the AMA Intro program to see if folks have the aptitude or desire, but after 6 freebie flights they have to go buy their own plane and radio and join the club.