Emit the Garmin AV400 protocol required to drive a Garmin 196/296 series GPS Emit the Garmin AV400 protocol required to drive a Garmin 196/296 series GPS

Emit the set of AV400 strings required to drive a Garmin 400-series GPS from FlightGear Emit the set of AV400 strings required to drive a Garmin 400-series GPS from FlightGear

Open connection for "A" channel using Garmin WAAS GPS protocol Open connection for "A" channel using Garmin WAAS GPS protocol

Open connection for "B" channel using Garmin WAAS GPS protocol Open connection for "B" channel using Garmin WAAS GPS protocol

Specify a path to addon; Specify a path to addon;

Set the ADF1 radio frequency, optionally preceded by a card rotation. Set the ADF1 radio frequency, optionally preceded by a card rotation.

Set the ADF2 radio frequency, optionally preceded by a card rotation. Set the ADF2 radio frequency, optionally preceded by a card rotation.

Select aircraft aerodynamics model to load Select aircraft aerodynamics model to load

Enable/Disable AI subsystem (required for multi-player, AI traffic and many other animations.) Disabling it is deprecated. Enable/Disable AI subsystem (required for multi-player, AI traffic and many other animations.) Disabling it is deprecated.

Add and enable a new scenario. Multiple options are allowed. Add and enable a new scenario. Multiple options are allowed.

Enable/Disable artificial traffic. Enable/Disable artificial traffic.

Select an aircraft profile as defined by a top level <name>-set.xml Select an aircraft profile as defined by a top level <name>-set.xml

Specify the exact directory to use for the aircraft (normally not required, but may be useful). Interpreted relatively to the current directory. Causes the <path-cache> from autosave_X_Y.xml, as well as --fg-aircraft and the FG_AIRCRAFT environment variable to be bypassed. Specify the exact directory to use for the aircraft (normally not required, but may be useful). Interpreted relatively to the current directory. Causes the <path-cache> from autosave_X_Y.xml, as well as --fg-aircraft and the FG_AIRCRAFT environment variable to be bypassed.

Aircraft Aircraft

Specify starting position relative to an airport Specify starting position relative to an airport

Enable/Disable security flag. Enable means that network connections will be allowed full access to the simulator including running arbitrary scripts. Ensure you have adequate security (such as a firewall which blocks external connections). Enable/Disable security flag. Enable means that network connections will be allowed full access to the simulator including running arbitrary scripts. Ensure you have adequate security (such as a firewall which blocks external connections).

Allow Nasal scripts to read files from directories listed as path (separate multiple paths with a semicolon (Windows) or a colon (UNIX)). By default, for security reasons, Nasal scripts can only read data from certain directories, such as $FG_ROOT, $FG_HOME, etc. Allow Nasal scripts to read files from directories listed as path (separate multiple paths with a semicolon (Windows) or a colon (UNIX)). By default, for security reasons, Nasal scripts can only read data from certain directories, such as $FG_ROOT, $FG_HOME, etc.

Starting altitude Starting altitude

Enable/Disable anti-aliased HUD Enable/Disable anti-aliased HUD

Specify a multiplier for the aspect ratio. Specify a multiplier for the aspect ratio.

Open connection using the ATC sim protocol (atc610x) Open connection using the ATC sim protocol (atc610x)

Open connection using the Atlas protocol Open connection using the Atlas protocol

Audio Options Audio Options

Enable/Disable auto coordination Enable/Disable auto coordination

Avionics Options Avionics Options

Specify the bits per pixel Specify the bits per pixel

Specify path to your web browser Specify path to your web browser

Assign a unique name to a player Assign a unique name to a player

Specify starting position on an AI carrier Specify starting position on an AI carrier

Specify a starting position relative to the carrier where you can use the predefined abeam (start on downwind abeam) or FLOLS (start on final approach) values, or specify the name of the carrier's parking position. Must also specify a carrier. Specify a starting position relative to the carrier where you can use the predefined abeam (start on downwind abeam) or FLOLS (start on final approach) values, or specify the name of the carrier's parking position. Must also specify a carrier.

Create an overcast ceiling, optionally with a specific thickness (defaults to 2000 ft). Create an overcast ceiling, optionally with a specific thickness (defaults to 2000 ft).

Enable/Disable clock freeze Enable/Disable clock freeze

Enable/Disable 2D (flat) cloud layers Enable/Disable 2D (flat) cloud layers

Enable/Disable 3D (volumetric) cloud layers Enable/Disable 3D (volumetric) cloud layers

Set the COM1 radio frequency Set the COM1 radio frequency

Set the COM2 radio frequency Set the COM2 radio frequency

Specify the path to XML file for multi-pass rendering. The path is relative to $FG_ROOT (defaults to Compositor/default.xml). Specify the path to XML file for multi-pass rendering. The path is relative to $FG_ROOT (defaults to Compositor/default.xml).

Load additional properties from path Load additional properties from path

Enable/Disable displaying console (Windows specific) Enable/Disable displaying console (Windows specific)

Specify an additional base data directory (FGData), before the $FG_ROOT directory Specify an additional base data directory (FGData), before the $FG_ROOT directory

Debugging Options Debugging Options

Enable/Disable developer mode Enable/Disable developer mode

Enable/Disable runway light distance attenuation Enable/Disable runway light distance attenuation

Slave the DME to one of the NAV radios, or set its internal frequency. Slave the DME to one of the NAV radios, or set its internal frequency.

Base directory to use for aircraft and scenery downloads (the TerraSync scenery directory may be specifically set with --terrasync-dir) Base directory to use for aircraft and scenery downloads (the TerraSync scenery directory may be specifically set with --terrasync-dir)

Environment Options Environment Options

Fail the pitot, static, vacuum, or electrical system (repeat the option for multiple system failures). Fail the pitot, static, vacuum, or electrical system (repeat the option for multiple system failures).

Select the core flight dynamics model Select the core flight dynamics model

Can be one of jsb, larcsim, yasim, magic, balloon, ada, external, or null Can be one of jsb, larcsim, yasim, magic, balloon, ada, external, or null

Flight Model Flight Model

Features Features

Specify additional aircraft directory path(s) (alternatively, you can use --aircraft-dir to target a specific aircraft in a given directory) Specify additional aircraft directory path(s) (alternatively, you can use --aircraft-dir to target a specific aircraft in a given directory)

Specify the root data path Specify the root data path

Specify the scenery path(s); Specify the scenery path(s);

Defaults to $FG_ROOT/Scenery Defaults to $FG_ROOT/Scenery

Enable/Disable FGCom built-in Enable/Disable FGCom built-in

Use a model viewer rather than load the entire simulator Use a model viewer rather than load the entire simulator

Specify starting position relative to a fix Specify starting position relative to a fix

Open connection using the Flarm protocol, which includes NMEA/GPS and traffic reporting messages Open connection using the Flarm protocol, which includes NMEA/GPS and traffic reporting messages

Read all waypoints from a file Read all waypoints from a file

Disable fog/haze Disable fog/haze

Enable fastest fog/haze Enable fastest fog/haze

Enable nicest fog/haze Enable nicest fog/haze

Specify field of view angle Specify field of view angle

Enable/Disable aborting on encountering a floating point exception Enable/Disable aborting on encountering a floating point exception

Enable/Disable start in a frozen state Enable/Disable start in a frozen state

Enable/Disable fuel consumption freeze Enable/Disable fuel consumption freeze

Enable/Disable fullscreen mode Enable/Disable fullscreen mode

Open connection using the Garmin GPS protocol Open connection using the Garmin GPS protocol

General Options General Options

Open connection using a predefined communication interface and a preselected communication protocol Open connection using a predefined communication interface and a preselected communication protocol

Specify window geometry (640x480, etc) Specify window geometry (640x480, etc)

Specify flight path angle (can be positive) Specify flight path angle (can be positive)

GMT GMT

Set graphic options from one of the presets Set graphic options from one of the presets

Enable/Disable GUI (disabling GUI enables headless mode) Enable/Disable GUI (disabling GUI enables headless mode)

Specify heading (yaw) angle (Psi) Specify heading (yaw) angle (Psi)

Show the most relevant command line options Show the most relevant command line options

Enable/Disable the move to hold short position for multiplayer Enable/Disable the move to hold short position for multiplayer

Enable/Disable celestial body growth illusion near the horizon Enable/Disable celestial body growth illusion near the horizon

Enable http server on the specified address. Specify the port or address:port to bind to. Enable http server on the specified address. Specify the port or address:port to bind to.

Enable/Disable 3D HUD Enable/Disable 3D HUD

Hud displays percentage of triangles culled Hud displays percentage of triangles culled

Enable/Disable Heads Up Display (HUD) Enable/Disable Heads Up Display (HUD)

Hud Options Hud Options

Hud displays number of triangles rendered Hud displays number of triangles rendered

Open connection using the International Gliding Commission protocol Open connection using the International Gliding Commission protocol

Enable/Disable ignoring the autosave file, i.e. the settings saved in this file will not be loaded during startup, nor will the settings be saved to this file when closing the simulator Enable/Disable ignoring the autosave file, i.e. the settings saved in this file will not be loaded during startup, nor will the settings be saved to this file when closing the simulator

Enable/Disable starting in air (implied when using --altitude) Enable/Disable starting in air (implied when using --altitude)

IO Options IO Options

Open connection to an Agwagon joystick Open connection to an Agwagon joystick

Enable screen shot http server on the specified port (replaced by --httpd) Enable screen shot http server on the specified port (replaced by --httpd)

Log JSBSim properties in a CSV file. An output directives file contains an <output type="CSV"></output> element, within which should be specified the parameters or parameter groups that should be logged. Log JSBSim properties in a CSV file. An output directives file contains an <output type="CSV"></output> element, within which should be specified the parameters or parameter groups that should be logged.

Open connection to a remote joystick Open connection to a remote joystick

Enable/Disable printing a report in JSON format on the standard output, giving information such as the FlightGear version, $FG_ROOT, $FG_HOME, aircraft and scenery paths, etc. Enable/Disable printing a report in JSON format on the standard output, giving information such as the FlightGear version, $FG_ROOT, $FG_HOME, aircraft and scenery paths, etc.

Select the language for this session Select the language for this session

Starting latitude (south = -) Starting latitude (south = -)

Enable/Disable GUI launcher Enable/Disable GUI launcher

Select aircraft livery Select aircraft livery

Enable/Disable encode video while replaying tape specified by --load-tape Enable/Disable encode video while replaying tape specified by --load-tape

Load recording of earlier FlightGear session. For <name>, if <name> ends with ".fgtape" it is treated as the local path of the recording file; otherwise we form the local path by prepending <name> with the tape directory and appending ".fgtape". For <url> (starting with http:// or https://) we download the remote recording (which must be a Continuous recording) in the background to a url-dependent filename while replaying it; if the url-dependent filename already exists it is assumed to be a truncated download and we only download any remaining data. Load recording of earlier FlightGear session. For <name>, if <name> ends with .fgtape it is treated as the local path of the recording file; otherwise we form the local path by prepending <name> with the tape directory and appending ".fgtape". For <url> (starting with http:// or https://) we download the remote recording (which must be a Continuous recording) in the background to a url-dependent filename while replaying it; if the url-dependent filename already exists it is assumed to be a truncated download and we only download any remaining data.

Set fixed-dt mode while replaying tape specified by --load-tape Set fixed-dt mode while replaying tape specified by --load-tape

local aircraft time local aircraft time

Specify the detail levels, where levels are a space-separated numeric list of levels. The default is "1 3 5 7 9". Specify the detail levels, where levels are a space-separated numeric list of levels. The default is "1 3 5 7 9".

Specify the range multiplier (point from low to fine detail). Defaults is 2. Specify the range multiplier (point from low to fine detail). Defaults is 2.

Specify the resolution of the terrain grid. Defaults is 1. Specify the resolution of the terrain grid. Defaults is 1.

Specify the method of texturing the terrain. The default is bluemarble. Specify the method of texturing the terrain. The default is bluemarble.

Specify which logging class(es) to use Specify which logging class(es) to use

Log to directory DIR. The special value 'desktop' causes logging to the desktop (OS-dependent location). This option may be given several times, using a different value each time. Inside the specified directory, the written log file is named FlightGear_YYYY-MM-DD_<num>.log, where <num> takes the values 0, 1, 2, etc. Log to directory DIR. The special value 'desktop' causes logging to the desktop (OS-dependent location). This option may be given several times, using a different value each time. Inside the specified directory, the written log file is named FlightGear_YYYY-MM-DD_<num>.log, where <num> takes the values 0, 1, 2, etc.

Specify which logging level to use Specify which logging level to use

Starting longitude (west = -) Starting longitude (west = -)

Specify initial mach number Specify initial mach number

Specify the materials file used to render the scenery (default: Materials/regions/materials.xml) Specify the materials file used to render the scenery (default: Materials/regions/materials.xml)

Maximum frame rate in Hz. Maximum frame rate in Hz.

Pass a METAR string to set up static weather (this implies --disable-real-weather-fetch) Pass a METAR string to set up static weather (this implies --disable-real-weather-fetch)

Allows you to define a minimum status level (=development status) for all listed aircraft Allows you to define a minimum status level (=development status) for all listed aircraft

Run the FDM this rate (iterations per second) Run the FDM this rate (iterations per second)

Enable/Disable extra mouse pointer Enable/Disable extra mouse pointer

(i.e. for full screen Voodoo based cards) (i.e. for full screen Voodoo based cards)

Specify multipilot communication settings; Specify multipilot communication settings;

MultiPlayer Options MultiPlayer Options

multiple instances can be used multiple instances can be used

Open connection using the FG Native Controls protocol Open connection using the FG Native Controls protocol

Open connection using the FG Native protocol Open connection using the FG Native protocol

Open connection using the FG Native FDM protocol Open connection using the FG Native FDM protocol

Open connection using the FG Native GUI protocol Open connection using the FG Native GUI protocol

Set the NAV1 radio frequency, optionally preceded by a radial. Set the NAV1 radio frequency, optionally preceded by a radial.

Set the NAV2 radio frequency, optionally preceded by a radial. Set the NAV2 radio frequency, optionally preceded by a radial.

Specify starting position relative to an NDB Specify starting position relative to an NDB

Specify the frequency of the NDB. Use with --ndb=ID Specify the frequency of the NDB. Use with --ndb=ID

Network Options Network Options

Open connection using the NMEA protocol Open connection using the NMEA protocol

Enable/Disable not loading any default configuration files (like .fgfsrc) unless explicitly specified with --config Enable/Disable not loading any default configuration files (like .fgfsrc) unless explicitly specified with --config

Enable/Disable not attempting to trim the model Enable/Disable not attempting to trim the model

(only with --fdm=jsbsim) (only with --fdm=jsbsim)

Specify heading to reference point Specify heading to reference point

Specify distance to reference point (nautical miles) Specify distance to reference point (nautical miles)

Enable/Disable starting at ground level (default enabled) Enable/Disable starting at ground level (default enabled)

Open connection using the OpenGC protocol Open connection using the OpenGC protocol

Enable/Disable instrument panel Enable/Disable instrument panel

Specify parking position at an airport (must also specify an airport) Specify parking position at an airport (must also specify an airport)

Same as the --parking-id option Same as the --parking-id option

Specify pitch angle (Theta) Specify pitch angle (Theta)

Initial Position and Orientation Initial Position and Orientation

After starting the simulator, immediately open the properties dialog with the given property After starting the simulator, immediately open the properties dialog with the given property

Set property <name> to <value>. <type> can be one of string, double, float, long, int, or bool Set property <name> to <value>. <type> can be one of string, double, float, long, int, or bool

Open connection using the interactive property manager Open connection using the interactive property manager

Specify which proxy server (and port) to use. The username and password are optional and should be MD5 encoded already. This option is only useful when used in conjunction with the real-weather-fetch option. Specify which proxy server (and port) to use. The username and password are optional and should be MD5 encoded already. This option is only useful when used in conjunction with the real-weather-fetch option.

Open connection using the PVE protocol Open connection using the PVE protocol

Enable/Disable random buildings objects Enable/Disable random buildings objects

Enable/Disable random scenery objects (buildings, etc.) Enable/Disable random scenery objects (buildings, etc.)

Enable/Disable random vegetation objects Enable/Disable random vegetation objects

Set up random wind direction and speed Set up random wind direction and speed

Open connection using the Ray Woodworth motion chair protocol Open connection using the Ray Woodworth motion chair protocol

Enable/Disable $FG_HOME read-only Enable/Disable $FG_HOME read-only

Enable/Disable METAR based real weather fetching Enable/Disable METAR based real weather fetching

Rendering Options Rendering Options

Enable/Disable automatic opening of the Launcher when exiting FlightGear Enable/Disable automatic opening of the Launcher when exiting FlightGear

Enable/Disable resetting all user settings to their defaults (rendering options etc.) Enable/Disable resetting all user settings to their defaults (rendering options etc.)

Specify initial climb rate (can be negative) Specify initial climb rate (can be negative)

Specify roll angle (Phi) Specify roll angle (Phi)

Route/Way Point Options Route/Way Point Options

Open connection using the RUL protocol Open connection using the RUL protocol

Specify starting runway (must also specify an airport) Specify starting runway (must also specify an airport)

Enable/Disable saving preferences at program exit Enable/Disable saving preferences at program exit

Enable/Disable crash and error reports from being sent to the development team for analysis Enable/Disable crash and error reports from being sent to the development team for analysis

Enable flat shading Enable flat shading

Enable smooth shading Enable smooth shading

Print a list of the currently available aircraft types Print a list of the currently available aircraft types

Show a list of available audio device Show a list of available audio device

Situation Options Situation Options

Enable/Disable sound effects Enable/Disable sound effects

Explicitly specify the audio device to use Explicitly specify the audio device to use

Enable/Disable specular reflections on textured objects Enable/Disable specular reflections on textured objects

Run the FDM 'n' times faster than real time Run the FDM 'n' times faster than real time

Enable/Disable splash screen Enable/Disable splash screen

Specify a starting date/time with respect to Specify a starting date/time with respect to

Specify the initial state of the aircraft to the given value Specify the initial state of the aircraft to the given value

system time system time

Enable telnet server on the specified port Enable telnet server on the specified port

Specify the terrain engine you want to use: tilecache or pagedLOD Specify the terrain engine you want to use: tilecache or pagedLOD

Enable/Disable automatic scenery downloads/updates Enable/Disable automatic scenery downloads/updates

Set target directory for scenery downloads Set target directory for scenery downloads

Enable/Disable texture cache (DDS) Enable/Disable texture cache (DDS)

Specify the DDS texture cache directory to be different than the default location Specify the DDS texture cache directory to be different than the default location

Anisotropic Texture Filtering: values should be 1 (default), 2, 4, 8 or 16 Anisotropic Texture Filtering: values should be 1 (default), 2, 4, 8 or 16

Synchronize time with local real-world time Synchronize time with local real-world time

Synchronize time with real-world time Synchronize time with real-world time

Add this time offset Add this time offset

Time Options Time Options

Specify a time of day Specify a time of day

Trace the reads for a property; Trace the reads for a property;

Trace the writes for a property; Trace the writes for a property;

Enable/Disable trim the model Enable/Disable trim the model

(only with --fdm=jsbsim) (only with --fdm=jsbsim)

Specify turbulence from 0.0 (calm) to 1.0 (severe) Specify turbulence from 0.0 (calm) to 1.0 (severe)

Specify velocity along the body X axis Specify velocity along the body X axis

Remove $FG_HOME directory. For Windows, it additionally removes TerraSync, Aircraft and TextureCache directories from download directory. Remove $FG_HOME directory. For Windows, it additionally removes TerraSync, Aircraft and TextureCache directories from download directory.

Use feet for distances Use feet for distances

Use meters for distances Use meters for distances

Usage: fgfs [ option ... ] Usage: fgfs [ option ... ]

Use with --terrain-engine=pagedLOD Use with --terrain-engine=pagedLOD

Specify velocity along the body Y axis Specify velocity along the body Y axis

Specify velocity along a vertical axis Specify velocity along a vertical axis

Specify velocity along a West-East axis Specify velocity along a West-East axis

Specify velocity along a South-North axis Specify velocity along a South-North axis

Specify initial airspeed Specify initial airspeed

Same as the --aircraft option Same as the --aircraft option

Show all command line options when combined with --help or -h Show all command line options when combined with --help or -h

For a complete list of options use --help --verbose For a complete list of options use --help --verbose

Enable/Disable display the current FlightGear version Enable/Disable display the current FlightGear version

Specify the default forward view direction as an offset from straight ahead. Allowable values are LEFT, RIGHT, CENTER, or a specific number in degrees Specify the default forward view direction as an offset from straight ahead. Allowable values are LEFT, RIGHT, CENTER, or a specific number in degrees

Specify initial visibility in meters Specify initial visibility in meters

Specify initial visibility in statute miles Specify initial visibility in statute miles

Specify starting position relative to a VOR Specify starting position relative to a VOR

Specify the frequency of the VOR. Use with --vor=ID Specify the frequency of the VOR. Use with --vor=ID

Enable/Disable virtual reality Enable/Disable virtual reality

Specify velocity along the body Z axis Specify velocity along the body Z axis

Specify wind coming from DIR (degrees) at SPEED (knots) Specify wind coming from DIR (degrees) at SPEED (knots)

Enable/Disable wireframe drawing mode Enable/Disable wireframe drawing mode

Specify a waypoint for the GC autopilot; Specify a waypoint for the GC autopilot;

binding subsystems binding subsystems

creating subsystems creating subsystems

downloading scenery downloading scenery

Error loading 3D model Error loading 3D model

Errors occurred loading aircraft systems (fuel, electrical, hydraulics) Errors occurred loading aircraft systems (fuel, electrical, hydrualics)

Audio FX description contains errors Audio FX description contains errors

Errors loading terrain (BTG) Errors loading terrain (BTG)

The add-on '%VALUE%' contains errors. Please report this to the add-on developers. The add-on '%VALUE%' contains errors. Please report this to the add-on developers.

This aircraft (%VALUE%) contains errors. This may include visual issues, or the aircraft might not fly at all. Check for an updated version of the aircraft from its developers. This aircraft (%VALUE%) contains errors. This may include visual issues, or the aircraft might not fly at all. Check for an updated version of the aircraft from its developers.

The selected aircraft (%VALUE%) contains errors. This may cause visual issues, or the aircraft might not fly at all. Please report the information below to the aircraft hangar's maintainers. The selected aircraft (%VALUE%) contains errors. This may cause visual issues, or the aircraft might not fly at all. Please report the information below to the aircraft hangar's maintainers.

The custom scenery at '%VALUE%' contains errors. Parts may be missing, or the scenery may not load at all. Check for an updated version of the scenery. The custom scenery at '%VALUE%' contains errors. Parts may be missing, or the scenery may not load at all. Check for an updated version of the scenery.

Errors were found loading the core simulator files (FGData). This usually indicates a problem with the installation, or your local disk. Errors were found loading the core simulator files (FGData). This usually indicates a problem with the installation, or your local disk.

The joystick (input device) '%VALUE%' couldn't be loaded correctly. This usually means its configuration file is incorrect. The joystick (input device) '%VALUE%' couldn't be loaded correctly. This usually means its configuration file is incorrect.

Loading a model for another pilot (via multi-player) failed. The other pilot will appear as a default model. (You can disable these errors from the multiplayer settings dialog) Loading a model for another pilot (via multi-player) failed. The other pilot will appear as a default model. (You can disable these errors from the multiplayer settings dialog)

Network errors occurred while downloading data. Check your network connection is working correctly. Network errors occurred while downloading data. Check your network connection is working correctly.

Allocating memory failed. Some resources will not be loaded. Adjust your settings to reduce view distance or number of objects loaded. Allocating memory failed. Some resources will not be loaded. Adjust your settings to reduce view distance or number of objects loaded.

The scenario '%VALUE%' contains errors, and may not work correctly. The scenario '%VALUE%' contains errors, and may not work correctly.

Problems occurred loading visual effects (shaders). This can cause objects to be invisible or appear incorrect. It can sometimes be fixed by changing rendering settings inside FlightGear, or occasionally, by updating the drivers for your graphics card. Problems occurred loading visual effects (shaders). This can cause objects to be invisible or appear incorrect. It can sometimes be fixed by changing rendering settings inside FlightGear, or occasionally, by updating the drivers for your graphics card.

The shared models data is missing or incomplete. This means all scenery will be missing some 3D models. To fix this, please enable automatic scenery download or download the current shared models data from https://www.flightgear.org/scenery/shared-models The shared models data is missing or incomplete. This means all scenery will be missing some 3D models. To fix this, please enable automatic scenery download or download the current shared models data from https://www.flightgear.org/scenery/shared-models

Scenery downloaded via TerraSync is not loading correctly. The usually indicates a problem with your network connection or local disk. Scenery downloaded via TerraSync is not loading correctly. The usually indicates a problem with your network connection or local disk.

Problems occurred loading simulated aircraft traffic: some traffic may not appear. Problems occurred loading simulated aircaft traffic: some traffic may not appear.

Errors occurred in an unknown part of FlightGear. Please report this bug to the FlightGear development team. Errors occurred in an unknown part of FlightGear. Please report this bug to the FlightGear development team.

Errors loading user-interface Errors loading user-interface

Errors loading input device configuration Errors loading input device configuration

Texture failed to load Texture failed to load

Shader / Effect problems Shader / Effect problems

This dialog is work-in-progress. The information included above may not be fully correct, so please check the detailed information below and give feedback if something seems wrong. Please include all the information below, as well as the message above. This dialog is work-in-progress. The information included above may not be fully correct, so please check the detailed information below and give feedback if something seems wrong. Please include all the information below, as well as the message above.

Errors loading scenery Errors loading scenery

Errors downloading scenery from TerraSync Errors downloading scenery from TerraSync

File or resource is invalid or corrupted File or resource is invalid or corrupted

File or resource header is incorrect File or resource header is incorrect

Unable to read/write files correctly (check permissions and disk space) Unable to read/write files correctly (check permissions and disk space)

The resource contains a configuration problem The resource contains a configuration problem

Network connection failure Network connection failure

The file or resource was not found The file or resource was not found

Unable to allocate sufficient memory Unable to allocate sufficient memory

Unknown error Unknown error

Scripted loading of XML failed Scripted loading of XML failed

Errors loading model XML Errors loading model XML

finalizing position finalizing position

finalizing subsystems finalizing subsystems

initializing initializing

initializing graphics engine initializing graphics engine

initializing scenery initializing scenery

initializing subsystems initializing subsystems

Licensed under the GNU GPL. See https://www.flightgear.org for more information. Licensed under the GNU GPL. See https://www.flightgear.org for more information.

loading aircraft loading aircraft

loading aircraft list loading aircraft list

loading navigation data loading navigation data

loading scenery loading scenery

loading fixes loading fixes

[VALUE]% complete [VALUE]% complete

loading airport data loading airport data

loading navigation aid data loading navigation aid data

loading points of interest loading points of interest

reading airport data reading airport data

extracting [VALUE] extracting [VALUE]

Saved settings were migrated from a previous version of FlightGear. If you encounter any problems when using the system, try restoring the default settings, before reporting a problem. Saved settings can affect the appearance, performance and features of the simulator. Saved settings were migrated from a previous version of FlightGear. If you encounter any problems when using the system, try restoring the default settings, before reporting a problem. Saved settings can affect the appearance, performance and features of the simulator.

Settings migrated Settings migrated

The shared scenery models are not installed correctly. This will cause missing elements in all scenery. Enable automatic scenery download, or download the shared models from https://www.flightgear.org/scenery/shared-models and add them to your scenery list. The shared scenery models are not installed correctly. This will cause missing elements in all scenery. Enable automatic scenery download, or download the shared models from https://www.flightgear.org/scenery/shared-models and add them to your scenery list.

The shared scenery models have not downloaded correctly. This will cause missing elements in all scenery. Automatic scenery download is enabled, check your network connection is working as expected. The shared scenery models have not downloaded correctly. This will cause missing elements in all scenery. Automatic scenery download is enabled, check your network connection is working as expected.

Missing shared models Missing shared models

KB KB

KB/s KB/s

MB MB

MB/s MB/s

Unstable nightly build - some features may be under active development Unstable nightly build - some features may be under active development

Drag while holding the right mouse button to look around Drag while holding the right mouse button to look around

Hold Ctrl while looking around to move the view up, down, left or right Hold Ctrl while looking around to move the view up, down, left or right

Press a/A to adjust the simulation speed Press a/A to adjust the simulation speed

Press x/X to zoom in and out Press x/X to zoom in and out

Find frequencies of nearby ATC services from the Radios dialog Find frequencies of nearby ATC services from the Radios dialog

Press v to change your viewpoint, Ctrl-V to return to the cockpit Press v to change your viewpoint, Ctrl-V to return to the cockpit

Press F3 to take a screenshot Press F3 to take a screenshot

Join the FlightGear community at https://forum.flightgear.org Join the FlightGear community at https://forum.flightgear.org

Press h to bring up a Heads Up Display Press h to bring up a Heads Up Display

Show or hide the menu bar by pressing F10 Show or hide the menu bar by pressing F10

Frame-rate too low? - try disabling AI traffic Frame-rate too low? - try disabling AI traffic

Select Environment → Weather to fly in different weather Select Environment → Weather to fly in different weather

Press F12 to change the radio frequencies easily Press F12 to change the radio frequencies easily

Look around by holding down the right mouse button and moving the mouse Look around by holding down the right mouse button and moving the mouse

Select Multiplayer → Multiplayer Settings to join the shared flight environment Select Multiplayer → Multiplayer Settings to join the shared flight environment

Can't get the engine started? - see Help → Aircraft Checklists Can't get the engine started? - see Help → Aircraft Checklists

Drag while holding the middle and right mouse buttons to move the viewpoint Drag while holding the middle and right mouse buttons to move the viewpoint

Press / to explore the internals of the simulator Press / to explore the internals of the simulator

Press Tab to move the viewpoint with your mouse and use the scroll wheel to zoom Press Tab to move the viewpoint with your mouse and use the scroll wheel to zoom

The border of a high pressure region, in which the airmass becomes unstable and various convective and stratiform clouds may appear. The border of a high pressure region, in which the airmass becomes unstable and various convective and stratiform clouds may appear.

Border of a high pressure region Border of a high pressure region

The border of a low pressure region, in which the airmass is unstable and convective clouds start to form layers and merge into stratiform clouds. The border of a low pressure region, in which the airmass is unstable and convective clouds start to form layers and merge into stratiform clouds.

Border of a low pressure region Border of a low pressure region

If you just got your IFR rating, this is what you are allowed to do. But can you? If you just got your IFR rating, this is what you are allowed to do. But can you?

CAT I minimum CAT I minimum

This is expert level. You will barely see the taxiway from the cockpit, even if you are on ground. Fog and light drizzle, freezing level at 1000ft. This is expert level. You will barely see the taxiway from the cockpit, even if you are on ground. Fog and light drizzle, freezing level at 1000ft.

CAT IIIb minimum CAT IIIb minimum

With just a 1/4 mile visibility and clouds at 100ft, you don't see much of the runway until seconds before touchdown. Trust your instruments to stay alive. With just a 1/4 mile visibility and clouds at 100ft, you don't see much of the runway until seconds before touchdown. Trust your instruments to stay alive.

CAT II minimum CAT II minimum

The center of a high pressure region, characterized by descending air and hence only weak cloud development with high visibility. The center of a high pressure region, characterized by descending air and hence only weak cloud development with high visibility.

Core high pressure region Core high pressure region

The core of a low pressure region, characterized by overcast clouds, bad visibility on the ground and significant rainfall. The core of a low pressure region, characterized by overcast clouds, bad visibility on the ground and significant rainfall.

Core low pressure region Core low pressure region

Fog developed this autumn's morning. Expect good visibility above the layer. However - getting through it can be a challenge. Stay alive for a 500' climb and you'll see the sun! Fog developed this autumn's morning. Expect good visibility above the layer. However - getting through it can be a challenge. Stay alive for a 500' climb and you'll see the sun!

Early morning fog Early morning fog

A lovely day for trip to your favorite 100$ hamburger airfield A lovely day for trip to your favorite 100$ hamburger airfield

Fair weather Fair weather

A high pressure region, characterized by moderate to strong Cumulus development in the afternoon and fairly good visibility conditions. A high pressure region, characterized by moderate to strong Cumulus development in the afternoon and fairly good visibility conditions.

High pressure region High pressure region

A standard atmosphere model for testing and calibrating aircraft performance and design. A standard atmosphere model for testing and calibrating aircraft performance and design.

International Standard Atmosphere International Standard Atmosphere

Fetch live weather data for your nearest airport from noaa.gov. You need a working internet connection. Weather is generated automatically, once a valid METAR is received. Fetch live weather data for your nearest airport from noaa.gov. You need a working internet connection. Weather is generated automatically, once a valid METAR is received.

Live data Live data

A low pressure region, characterized by rising air, widespread formation of stratiform clouds and beginning rain. A low pressure region, characterized by rising air, widespread formation of stratiform clouds and beginning rain.

Low pressure region Low pressure region

Enter your favorite METAR weather. A valid METAR syntax is required. Enter your favorite METAR weather. A valid METAR syntax is required.

Manual input Manual input

After the storm - limited visibility and some showers. Go or No-Go? After the storm - limited visibility and some showers. Go or No-Go?

Marginal VFR Marginal VFR

You're out for an adventure? Gusty winds blowing from the west and isolated thunderstorms should be avoided. Fasten your seatbelt! You're out for an adventure? Gusty winds blowing from the west and isolated thunderstorms should be avoided. Fasten your seatbelt!

Stormy Monday Stormy Monday

A hot and damp summer day with thunderstorms developing in the afternoon. Be prepared for reduction of visibility in showers and strong gusts near thunderstorms A hot and damp summer day with thunderstorms developing in the afternoon. Be prepared for reduction of visibility in showers and strong gusts near thunderstorms

Thunderstorm Thunderstorm

A warm sector, characterized by high moisture in the air and haze extending up to high altitudes, but otherwise largely convective cloud development. A warm sector, characterized by high moisture in the air and haze extending up to high altitudes, but otherwise largely convective cloud development.

Warm sector Warm sector

Exit FlightGear? Exit FlightGear?

Exit Exit

FlightGear FlightGear This is the title of the Exit dialog.

NDB NDB Label corresponding to a radio button

NDB: NDB: Label corresponding to a text input field

VOR VOR Label corresponding to a radio button

VOR: VOR: Label corresponding to a text input field

Aircraft Carrier Aircraft Carrier Label corresponding to a radio button

Airport Airport

Airport: Airport:

Airspeed (kt): Airspeed (kt):

Altitude (ft): Altitude (ft):

Azimuth (°): Azimuth (°):

Position: Position: Position selection on an aircraft carrier

Carrier: Carrier:

Distance (nm): Distance (nm):

Fix Fix Label corresponding to a radio button

Fix: Fix: Label corresponding to a text input field

Glidepath (°): Glidepath (°):

Heading (°): Heading (°):

Latitude: Latitude:

Position Aircraft In Air Position Aircraft In Air This is the dialog title.

Longitude: Longitude:

Coordinates Coordinates

Relative Position Relative Position Title

Runway: Runway:

Okay OK

Apply Apply

Cancel Cancel

Close Close

Help Help

Reset Reset

Revert Revert

Advanced Graphics Options Advanced Graphics Options This is the dialog title.

Atmospheric Light Scattering uses a sophisticated physical atmospheric model and several other effects to give realistic rendering of large distances. It is recommended to run this configuration on relatively powerful hardware. Atmospheric Light Scattering uses a sophisticated physical atmospheric model and several other effects to give realistic rendering of large distances. It is recommended to run this configuration on relatively powerful hardware.

Atmospheric Light Scattering (ALS) Atmospheric Light Scattering (ALS)

Anti-aliasing Anti-aliasing

Disabled Disabled This is about Anti-aliasing.

MSAA 2x MSAA 2x This is an Anti-aliasing setting.

MSAA 4x MSAA 4x This is an Anti-aliasing setting.

MSAA 8x MSAA 8x This is an Anti-aliasing setting.

Atmospheric Effects Atmospheric Effects

Autogenerated Vegetation Autogenerated Vegetation

Disabled Disabled This is about Autogenerated Vegetation.

High Density High Density This is about Autogenerated Vegetation.

Low Density Low Density This is about Autogenerated Vegetation.

Medium Density Medium Density This is about Autogenerated Vegetation.

Ultra High Density Ultra High Density This is about Autogenerated Vegetation.

Ultra Low Density Ultra Low Density This is about Autogenerated Vegetation.

Very High Density Very High Density This is about Autogenerated Vegetation.

Very Low Density Very Low Density This is about Autogenerated Vegetation.

Buildings Buildings

Disabled Disabled This is about Buildings in the Advanced Graphics Options dialog.

OpenStreetMap Data OpenStreetMap Data This is about Buildings in the Advanced Graphics Options dialog.

Randomly Generated Randomly Generated This is about Buildings in the Advanced Graphics Options dialog.

Cloud density Cloud density

Cloud visibility range Cloud visibility range

Clouds Detail Clouds Detail

High High This is about Clouds Detail.

Low Low This is about Clouds Detail.

High High This is about Terrain Quality.

Low Low This is about Terrain Quality.

Medium Medium This is about Terrain Quality.

Ultra Ultra This is about Terrain Quality.

Detailed Roads and Railways Detailed Roads and Railways

Disabled Disabled This is about Detailed Roads and Railways.

Enabled Enabled This is about Detailed Roads and Railways.

Dynamic lighting Dynamic lighting

General General Heading in the Advanced Graphics Options dialog

Some of these settings can only be changed when using ALS. Some of these settings can only be changed when using ALS.

Limit the number of lights being displayed Limit the number of lights being displayed

The Low Specifications render mode provides low quality visuals with maximum compatibility. This setting is recommended for users with less powerful hardware or integrated video cards. The Low Specifications render mode provides low quality visuals with maximum compatibility. This setting is recommended for users with less powerful hardware or integrated video cards.

Low Specifications Low Specifications

Maximum number of point lights Maximum number of point lights

Maximum number of spot lights Maximum number of spot lights

Model Effects Model Effects

Disabled Disabled This is about Model Effects.

Enabled Enabled This is about Model Effects.

OpenStreetMap Trees OpenStreetMap Trees

Disabled Disabled This is about OpenStreetMap Trees.

Enabled Enabled This is about OpenStreetMap Trees.

Overlay Overlay

Disabled Disabled This is about Overlay in the Advanced Graphics Options dialog (/sim/gui/dialogs/advanced/overlay).

Enabled Enabled This is about Overlay in the Advanced Graphics Options dialog (/sim/gui/dialogs/advanced/overlay).

Particles (smoke, dust, spray) Particles (smoke, dust, spray) This is a checkbox in the Advanced Graphics Options dialog.

Precipitation Precipitation This is a checkbox in the Advanced Graphics Options dialog.

Basic Basic This is about Pylons and power lines.

Pylons and power lines Pylons and power lines

Detailed Detailed This is about Pylons and power lines.

Disabled Disabled This is about Pylons and power lines.

Random Scenery Objects Random Scenery Objects

Disabled Disabled This is about Random Scenery Objects.

Enabled Enabled This is about Random Scenery Objects.

Scenery Layers Scenery Layers

Scenery Objects Scenery Objects

Disabled Disabled This is about Scenery Objects in the Advanced Graphics Options dialog.

Enabled Enabled This is about Scenery Objects in the Advanced Graphics Options dialog.

Select Rendering Mode Select Rendering Mode

Shadow Quality Shadow Quality

Disabled Disabled This is about Shadow Quality.

High High This is about Shadow Quality.

Low Low This is about Shadow Quality.

Medium Medium This is about Shadow Quality.

Ultra Ultra This is about Shadow Quality.

Shadows and Lights Shadows and Lights

Terrain Quality Terrain Quality

3D clouds (required by Detailed Weather) 3D clouds (required by Detailed Weather)

Use Shaders Use Shaders

Vegetation Shadows Vegetation Shadows

Disabled Disabled This is about Vegetation Shadows.

Enabled Enabled This is about Vegetation Shadows.

Warning: Pylons, Detailed Roads, Buildings use a lot of memory and disk space, and are only available in limited areas. Warning: Pylons, Detailed Roads, Buildings use a lot of memory and disk space, and are only available in limited areas. This uses manual line wrapping for now, which is not ideal; see https://gitlab.com/flightgear/flightgear/-/work_items/3171

Water Effects Water Effects

Disabled Disabled This is about Water Effects.

High High This is about Water Effects.

Low Low This is about Water Effects.

Wind Effects Wind Effects

Disabled Disabled This is about Wind Effects.

Enabled Enabled This is about Wind Effects.

Advanced Options Advanced Options

Animated jetways Animated jetways

Custom Custom Whether to use custom rendering settings

%2d m %2d m %d = number of meters for “Elevation delta below airports”

Elevation delta below airports Elevation delta below airports

Use disk space for faster loading (DDS Texture Cache) Use disk space for faster loading (DDS Texture Cache)

Compensate field of view for wider screens Compensate field of view for wider screens

%2.0f FPS %2.0f FPS

Graphics Quality Graphics Quality

%d %d Value of /sim/rendering/max-paged-lod

Maximum number of aircraft and scenery tiles cached Maximum number of aircraft and scenery tiles cached

Warning: High values use a lot amount of memory and GPU Warning: High values use a lot amount of memory and GPU

Rendering Options Rendering Options This is the dialog title.

Some changes require a complete restart to be applied. Some changes require a complete restart to be applied.

Satellite Photoscenery Satellite Photoscenery

Save custom settings to file Save custom settings to file

Warning: Your graphics card may not support complex graphics. Warning: Your graphics card may not support complex graphics.

Tessellation Tessellation

Limit frame rate Limit frame rate

Use triangles for directional lights Use triangles for directional lights

Use point sprites for runway lights Use point sprites for runway lights

WS3.0 (Experimental - requires OSG 3.6) WS3.0 (Experimental - requires OSG 3.6)

Wireframe Wireframe

"%s" Specific Views "%s" Specific Views %s = name of the selected aircraft

Autohide cursor in Autohide cursor in This is followed by a input field allowing one to enter a number of seconds

Autohide menubar Autohide menubar

default default Chat and event log position

left left Chat and event log position

Display Options Display Options

second(s) second

second(s) seconds

Hide 2D panel in non-centered view Hide 2D panel in non-centered view

Hide 2D panel in non-cockpit view Hide 2D panel in non-cockpit view

Legacy multiplayer view selector Legacy multiplayer view selector

Marker Pins Marker Pins

Other Views Other Views

Select Active Views Select Active Views

Chat and event log position (requires restart): Chat and event log position (requires restart):

Show 2D panel Show 2D panel

POI POI POI = Points Of Interest

Airports Airports

Show chat messages Show chat messages

Fixes Fixes

Show frame rate Show frame rate

Show frame spacing Show frame spacing

Show Show

Navaids Navaids

Show Pilot Model Show Pilot Model This option is not always visible (it depends on a property).

Show tooltips Show tooltips

Traffic Traffic

Standard Views Standard Views

unnamed view %d unnamed view %d %d = view number

View Options View Options This is the dialog title.

High quality settings with the most demanding features disabled. High quality settings with the most demanding features disabled.

High High Name of a graphics preset

Prioritize performance over eye candy. Prioritize performance over eye candy.

Low Low Name of a graphics preset

A nice tradeoff between performance and eye candy. A nice tradeoff between performance and eye candy.

Medium Medium Name of a graphics preset

Minimal settings for low-power laptops or very old systems. Minimal settings for low-power laptops or very old systems.

Minimal Minimal Name of a graphics preset

Maximum settings for very powerful systems. Maximum settings for very powerful systems.

Ultra Ultra Name of a graphics preset