Crazyaviation.com
 

They have some very interesting videos on here.

Check out the Porche/motor cycle/fighter race.

If someone looks at the rc areobatics vid, can you please explain how they did that?

On the archive page there is a RC helo doing stuff that just is not possible (at that's what I though). My best guess is he is changinf the pitch of the blades. Most amazing thing I have ever seen with a RC.