I believe traditional will have a different meaning for different people. It all depends on one's experience during their time in the hobby. I have been doing this for nearly forty years and have seen a lot of thing's come and go. My definition of "Traditional R/C" would be anything r/c from any time frame. 100 years from now what we did today or yesterday will be obsolete, and forgotten, or envied that we could play with our toys, that have been outlawed for them.