The skins are for the IL-2 Forgotten Battles Series/Pacific Fighters game.

ARGH!! IL-2 would never run right on my PC for some reason. I got it to run once on my machine, and I batted about with the Bf109G for a bit, then had to do something to it, and after that it never worked since, even after un/reinstalling it and buying a new copy!

Why, God, why?! 🙁