$FG HOME

$FG_HOME is a placeholder variable representing the path to where user-specific data is stored (not application data). Unlike $FG_ROOT, $FG_HOME is NOT an environment variable that needs to be specifically configured for FlightGear to work. $FG_HOME is only used to refer to the OS-specific location for some settings/folders. The actual location of $FG_HOME will be determined by the fgfs binary during startup, it is a name for a directory that varies with the various operating systems supported by FG (Windows, OSX and Linux) and it stores information between sessions, such as: configuration/preferences, properties marked with the "user-archive" attribute and aircraft-specific settings (using the data helper class in aircraft.nas).

Common paths

• Linux: ~/.fgfs/
• Mac OS X: ~/Library/Application Support/FlightGear (to learn more about viewing hidden folders, see [1])

As all future FlightGear versions will take their preferences from here, it is a good idea to have their access available easily.

Desktop/Finder/Go/Go to Folder is where you need to start.

When given the option, input: ~/Library/Application Support/FlightGear

It is probably a good idea to have '~/Library/Application Support/FlightGear' saved on a Stickies note just in case you forget it.

If you want/need to refer to any of these files frequently, you could make an alias of a file, or the whole folder, and place it somewhere easier to access.

• Windows: %APPDATA%\flightgear.org\

%APPDATA% is another environment variable that depends on your Windows version. On XP and older, it can be found under C:\Documents and Settings\{username}\Application Data. On Vista and later it can be found under C:\Users\{username}\AppData. The folder is hidden by default; see these instructions to unhide the folder.

You can determine the location of your $FG_HOME by using the property tree browser.