Algodoo

An air simulation that I've been wanting to make for a long time, but I've had too many other things to make to make it. It doesn't work very qell, or very quickly, but it does work. I don't know if it works accurately, but the wing/airfoil thingy does turn in the right direction.
The instructions are in the scene, so have fun with it.

Warning: This scene includes a multi-ball spawner that creates over 1000 balls on the screen at one time. If your computer isn't new, or if your computer isn't very high quality, this scene will most likely make your computer lag allot.