21.01.2010, 12:00
Put simply, it is the file containing the Flight Model and Engine Model data for the aircraft in your game.
If your air.ini contains an entry for an aircraft which requires a particular FM or EM, and that FM or EM is NOT in your buttons, the game will crash to desktop at the 60% loading point.
There is no auto-updater for it, and you can't edit it yourself.
There are some topics over at SAS forum that explain it more fully:
http://www.sas1946.com/main/index.php/topic,21.0.html
If your air.ini contains an entry for an aircraft which requires a particular FM or EM, and that FM or EM is NOT in your buttons, the game will crash to desktop at the 60% loading point.
There is no auto-updater for it, and you can't edit it yourself.
There are some topics over at SAS forum that explain it more fully:
http://www.sas1946.com/main/index.php/topic,21.0.html