From: Dallas, Texas
I can post a save. I will post the save at the end of the turn prior to that. I have not tested to see if its reproducible.
Denniss- Not sure what you mean. I did switch out all old aircraft for new models. Well, more accurately, when a model is no longer being produced, I gradually switch it over to newer models. As the older one gradually disappear, I in turn gradually reduce the regiments using that aircraft (except for the biplanes, I pretty much switched them out immediately way back when- not counting the UV2S bomber, since you can't even manually upgrade it).
I also, early on, disbanded all the units that had like a max of 10 aircraft in them.