It's not unrealistic to operate several different types of fighters in small numbers of each, and not all of them would be serving concurrently - you can see the service dates and see which types supplant other types.
Also, it's not exactly a miracle but it'd be a real trick for the D-3800 to be delivered in any real numbers given how early Hitler invaded.
Klag, in this AU, several things have happened that didn't allow Hitler to annex Austria, first being that due to the Nazis being behind the assassination of Chancellor Engelbert Dollfuss, enraged the non Nazi Austrians. Second, Chancellor Kurt Schuschnigg was able to keep Austria neutral and had the support of the people by reinstating the Constitution. He also refused Hitler's demands for Nazi legalization in Austria. And, the Swiss and the British openly supported Austria's declaration of Neutrality, as well as support, in the form of military supplies, from Czechoslovakia and Yugoslavia.
_________________ "It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me
Alright, but I'm not sure why that's addressed specifically to me. Unless you're talking about the D-3800 thing, in which I was talking about the invasion of France. Hard to deliver fighters when the production line has been overrun, after all