14 channel radios offer virtually unlimited programming capabilities; you may not use nearly all of the channels, though some may.

Large (like huge) scale planes have several servos on each aileron, multiple servos on the rudder, etc. Add flaps, bombs, smoke, lights...you get the idea.

I was talking to a top pilot at a pattern meet who used a 12 channel radio. I think there were only 6 servos in his plane but he wanted and uses some of the very advanced programming features only found in high channel radios.



By the way, sushi is absolutely incredible. I was just about to head to the restaurant and get some until I realized the time [&o]