It is quite a while ago already that I wrote on this blog about how to use normal maps on your FSX models. Today I finally found the time to put that information into a tutorial on the Wiki. I hope it makes the process of creating a normal map more clear. Or else feel free to enhance the tutorial even more.
And of course, don’t get carried away with applying normal maps. Only use them where really needed, as using them on all your models might not do the performance much good.