Ok ok ok Gordon, so I was feeling generous and added a "T" and forgot the big s!!!

"Because the fact that there are two ailerons means there is already redundancy. If one aileron comes off or the servo fails etc, you can usually still control the aircaft with the remaining aileron. "

Not true in our jets. I have seen a Maverick lose one aileron and it flew straight till a turn was commanded and then... poof! spin into the ground, Adverse yaw effect came in. Heavy wing loading, slight wind and other factors caused that crash. You try your bobcat with one aileron ( via mixing like you suggested) if you truely believe you have redudancy!

Also, a C47 is designed to be flown with rudders and aileron, so there....it does not apply here!!