I remember when I was first exposed to modern Control line combat, around 1990 or so. I was so blown away by the performance, and still, to this day, do not see aircraft that operate in the envelope that a combat aircraft does. The keys to the design were very light weight, large wing area, Powerful engine, and a medium thick airfoil. The light wing loading, which with our design was around 11oz., could turn so tight and change direction so fast, it was more than most pilots can keep up with. Especially at 120 mph. The thing that is so impressive is how much angle of attack that could be achieved before the stall occurred. This was due to the light wing loading. Those aircraft to this day are still my favorite designs and the most fun to fly, even though I have now moved on to giant scale aircraft. The lessons learned in those days of heavy competition, had a profound impact on my modeling.