As many of you don't know that I am 15, I am. I want to be an airline pilot. Lets say in 15-20 years from now when and if I fly for an airline, what will happen to today's aircraft??? They will probably be too old to fly any more, so will the aircraft manufacturers build totally new airplanes like the Boeing 767-600 or the B777-400??? I just hope I don't fly some 30 y/o plane.