Available here at Combat Ace
http://forum.combatace.com/index.php?autocom=downloads&showfile=7022You need the paid for Oct 2007 Expansion Pack. Flight Models have changed considerably with each version/patch, so for example this will not work with the latest April 2008 Expansion Pack patch.
You can keep your stock/modded and patched April 2008 Expansion Pack as a seperate install.
Installation is very simple and quick:
1) Do a clean install of the the original FE (no need to apply patches), then install the paid for Oct 2007 Expansion Pack. DO NOT install any EP patches at all. Call the new install something different like "FE Mod".
2) Extract this zip file to a temp folder, and move or copy all the folders of the extracted zip to your newly installed main First Eagles directory, and when prompted, click yes to overwrite existing files.
Thats it. Takes about 10 minutes.
The benefits.....
The mod updates FMs for stock planes (FE and Expansion Pack), makes AI only planes flyable (some of these are the best), adds Le Prieur rockets, changes the AI, reduces gun damage effects to realistic levels, many other things. The overall result is that its more realistic, the dogfight experience is very very considerably improved, perhaps the most challenging of any sim.
If this is installed its quite simple adding add-on planes incrementally, as most add-on plane FMs have now been done for this Oct 2007 version of the game (but not for April 2008 patch) and work as a consistent set.
Cheers