I think this is a FANTASTIC idea. I have thought about this before, but until now I had a problem with it. My problem was on (as pointed out earlier) that on the continent Japan’s aircraft movement might be too limited.
How about this: Planes may only land on islands that contain an airbase. For continental territory no airbase is required.
Either that or just add an airbase to any place that has an aircraft starting out and build airbases where you want to land. That is the way it was done in the war. If you wanted to station air units closer to the front you had to build an airbase. This would also make it so a lot more airbases would be built during the game.
I don’t think you need to set a limit on the number of aircraft that can operate out of an airbase. Currently there is no rule against stacking the entire Japanese air force in Guam, but nobody does it.
I like this because in the Pacific war any island with an airbase was considered a very high level target since they could not land planes unless there was an airbase.
Krieghund, if you read this at all I would be interested if you guys thought about doing something like this and what the reason was you ended up not going this route. (When I originally heard you were adding airbase tokens I thought this would be the rule)