A big thanks to Product Designer Dan Price for sharing this (please read his interview here).
“A daydream thumbnail sketch page for possible line extensions. I was thinking there might be a third group, a little more primitive and organic. {I was} looking at bird-like features as a design influence for the flying vehicles. It never went anywhere, but we would typically [start] very early ideas like this.”
I can’t see any air-powered design features but it’s still cool to see what a possible third faction could have looked like. Who knows if it would have been humans or some birdman mutants from the wastes? The design reminds me of the Nautilus from Twenty Thousand Leagues Under the Sea. Going by the most complete design on the bottom, it doesn’t seem like they would have had wings, they would be more like rocket ships. I think of those big “eyeholes” as being a cockpit feature but they could have been torpedo tube launchers too.
Enjoy and click here to like us on Facebook!
Air Raiders 
Yes very nice looking ship, as you say reminiscent of the submarine from 20,000 Leagues.
LikeLiked by 1 person