Much as I played Crimson skies and enjoyed it, when it was out, there is one thing I seriously dislike about your concepts and I think I need to speak about.
Flying mountains? Whatever is this? How is this supposed to work? Are you making an avatar with propeller driven aircraft?
I respect the works of your imagination and will probably play what you create, if this comes to a playable conclusion, because there are some imaginary concepts in there I like a lot, for example that flying aircraft carrier. Still, there really needs to be some plausibility in there. A detail like this, of the "flying mountains" variety, is just false.
Ok, rant done, mind spoken, returning to lurker status.