Algodoo

This scene is a simple yet effective example for means of flight.
The spawners and bouncy boxes to the right act as a wind tunnel, propelling little grey balls at the plane. The wings catch the little grey balls like air and takes flight.

Of course, the wings dont really work like that, and the plane is unrealistically lightwight, but this is a pretty much untested idea, as far as I know.

Still, this may be a new way to fly by spawning.

Up to go down, down to go up, and enter to toggle "air" flow.

Please comment and rate, I want to hear some more on this idea.