Environment Variables

SG_WINDEBUG

Set to true-ish value to additionally log to the Windows debug console. Defaults to off, ignored on non-Windows platforms.

FG_HOME

Set the location used for user settings, logs and data written by add-ons. Defaults to ~/.fgfs on POSIX platforms, and %APPDATA%\Local\flightgear.org on Windows. The value is exposed by the /sim/fg_home property.