Are there any good WWI flight sims?

[Doktorwzzerd]

Check out Red Baron II by Dynamix, released in 1998 I think, but you HAVE to get its mods, the original was crap but its fans were so devoted they basically redid the game many times over and created one of the best sims ever. The latest vers are basically 2003 level graphics but the gameplay is supposed to be awesome. I never played it, just read about it. Unfortunately I have to have a Mac for my work so PC games are out.