I'm on my android tablet for a time yet, but as soon as I get home, I'll check my PC and let you know. If memory serves me correctly, I downloaded it, but I don't remember activating it. But I had never noticed an issue with planes before. I am one though that thinks planes should be numerous and deadly, and that submarines should not be seen by them...
...
Edit 1240 Eastern: OK, Bleiente, I have the "HotFix for Ralles RealModPack", but I do not have the "AI_AIR_Patch" specifically named in my install...