I'm probably a bit slow on the uptake (no change there then) but go see this lot :
http://mudmovers.com/Sims/FB/il2_fb.htm
Now..theres lots of stuff, BUT the things to check out are on the left side, in the column listing the sections of the site.
The Guides section is ace
The Loadout subsection section is amazing.....FULL details of weapons, rockets and their specs
Complex engine management is incredible and if ya look hard enough, there is a full chart of all the planes engine stats,peak power bands, altitude requirements for stg 2 superchargers, mixtures at varying altitued etc....
Just amazing
When you've all seen it, can Deckard put the link in the USefull thread sticky at the top of this forum please ?
Cheers pilots