A So-So piece.
This animation requires some work. You'll need to increase the framerate and work on the colors. Everything is too grey and bland. A simple sky, and simply helicopter... everything was just too simple. Next time develop the objects a bit more. Maybe add in people too?
I did however like the use of sound and different scenes. The way you added little scene transitions and different view points shows your willing to make the extra 'umph'. I'd say you require more practice than you do effort.
With the job you did keeping the file size so small, you'd think you could have managed to get parts one, two and three into one toon. In anycase, the graphics and sound were decent. I was a bit dissapointed with the pacing though. The toon moved way too slow. There was no story really at all. Also, stick figures are really a cliche. This toon could have used some music...that might help a bit. I'd say keep up the good work, but at the same time, try harder.
It was a nice flash, can't wait to see the next two.