IL1946 is a good game to play all different roles in Air warfare.
it has many planes to choose out from. the game is stable as a brick house, never had any issues with it
so my suggestion is get the IL2 1946 DVD version
(so you have all the IL2 games in one Installation)
but Mush martin
we have a special flight sim section if you scroll down a bit you see Helo/Flight sim section.
http://www.subsim.com/radioroom/forumdisplay.php?f=216
there is a lot of info to be found there
(I will get thread moved to the right section)