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

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

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

Specify a path to addon;

Set the ADF1 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

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

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.

Aircraft

Specify starting position relative to an airport

Remove security flag, which 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.

Starting altitude

Specify a multiplier for the aspect ratio.

Open connection using the ATC sim protocol (atc610x)

Open connection using the Atlas protocol

Audio Options

Avionics Options

Specify the bits per pixel

Specify path to your web browser

Assign a unique name to a player

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.

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

Set the COM1 radio frequency

Set the COM2 radio frequency

Enable CompositeViewer (extra view windows)

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

Display console (Windows specific)

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

Debugging Options

Enable developer mode

Deprecated option (disable internal AI subsystem)

Disable artificial traffic.

Disable anti-aliased HUD

Disable auto coordination

Clock advances normally

Disable 2D (flat) cloud layers

Disable 3D (volumetric) cloud layers

Disable runway light distance attenuation

Disable enhanced runway lighting

Disable FGCom built-in

Start in a running state

Fuel is consumed normally

Disable fullscreen mode

Enable headless mode

Disable the move to hold short position for multiplayer

Disable celestial body growth illusion near the horizon

Disable 3D HUD

Disable Heads Up Display (HUD)

Disable extra mouse pointer

Disable instrument panel

Exclude random buildings objects

Exclude random scenery objects

Exclude random vegetation objects

Disable METAR based real weather fetching

Don't save preferences upon program exit

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

Disable sound effects

Disable specular reflections on textured objects

Disable splash screen

Disable automatic scenery downloads/updates

Disable texture cache (DDS)

Disable textures

Disable VR

Disable wireframe drawing mode

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)

Enable AI subsystem (required for multi-player, AI traffic and many other animations)

Enable artificial traffic.

Enable anti-aliased HUD

Enable auto coordination

Do not advance clock

Enable 2D (flat) cloud layers

Enable 3D (volumetric) cloud layers

Enable runway light distance attenuation

Enable enhanced runway lighting

Enable FGCom built-in

Start in a frozen state

Fuel tank quantity forced to remain constant

Enable fullscreen mode

Enable celestial body growth illusion near the horizon

Enable 3D HUD

Enable Heads Up Display (HUD)

Enable extra mouse pointer

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

Enable instrument panel

Include random buildings objects

Include random scenery objects

Include random vegetation objects

Enable METAR based real weather fetching (this requires an open internet connection)

Allow saving preferences at program exit

Enable crash and error reports to be sent to the development team for analysis

Enable sound effects

Enable specular reflections on textured objects

Enable splash screen

Enable automatic scenery downloads/updates

Enable texture cache (DDS)

Enable textures

Enable VR

Enable wireframe drawing mode

Environment Options

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

Select the core flight dynamics model

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

Flight Model

Features

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 scenery path(s);

Defaults to $FG_ROOT/Scenery

Use a model viewer rather than load the entire simulator;

Specify starting position relative to a fix

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

Read all waypoints from a file

Disable fog/haze

Enable fastest fog/haze

Enable nicest fog/haze

Specify field of view angle

Abort on encountering a floating point exception;

Open connection using the Garmin GPS protocol

General Options

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

Specify window geometry (640x480, etc)

Specify flight path angle (can be positive)

GMT

Set graphic options from one of the presets

Specify heading (yaw) angle (Psi)

Show the most relevant command line options

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

Hud displays percentage of triangles culled

Hud Options

Hud displays number of triangles rendered

Ignore 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

Start in air (implied when using --altitude)

IO Options

Open connection to an Agwagon joystick

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.

Open connection to a remote joystick

Print 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

Starting latitude (south = -)

Use GUI launcher

Select aircraft livery

Load recording of earlier FlightGear session. For <name>, if <name> ends with .fgdata 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.

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

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

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

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.

Specify which logging level to use

Starting longitude (west = -)

Specify initial mach number

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

Maximum frame rate in Hz.

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

Run the FDM this rate (iterations per second)

Specify multipilot communication settings;

MultiPlayer Options

multiple instances can be used

Open connection using the FG Native Controls protocol

Open connection using the FG Native protocol

Open connection using the FG Native FDM protocol

Open connection using the FG Native GUI protocol

Set the NAV1 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 the frequency of the NDB. Use with --ndb=ID

Network Options

Open connection using the NMEA protocol

Do not load any default configuration files (like .fgfsrc) unless explicitly specified with --config.

Do NOT attempt to trim the model

(only with fdm=jsbsim)

Specify heading to reference point

Specify distance to reference point (nautical miles)

Start at ground level (default)

Open connection using the OpenGC protocol

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

Same as the --parking-id option

Specify pitch angle (Theta)

Initial Position and Orientation

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

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.

Open connection using the PVE protocol

(buildings, etc.)

Set up random wind direction and speed

Open connection using the Ray Woodworth motion chair protocol

Make $FG_HOME read-only

Rendering Options

Open Launcher automatically when exiting FlightGear

Reset all user settings to their defaults (rendering options etc)

Specify initial climb rate (can be negative)

Specify roll angle (Phi)

Route/Way Point Options

Open connection using the RUL protocol

Specify starting runway (must also specify an airport)

Enable flat shading

Enable smooth shading

Print a list of the currently available aircraft types

Show a list of available audio device

Situation Options

Explicitly specify the audio device to use

Run the FDM 'n' times faster than real time

Specify a starting date/time with respect to

Specify the initial state of the aircraft to the given value

system time

Enable telnet server on the specified port

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

Set target directory for scenery downloads

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

Synchronize time with local real-world time

Synchronize time with real-world time

Add this time offset

Time Options

Specify a time of day

Trace the reads for a property;

Trace the writes for a property;

Trim the model

(only with fdm=jsbsim)

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

Specify velocity along the body X axis

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

Use feet for distances

Use meters for distances

Usage: fgfs [ option ... ]

Use with --terrain-engine=pagedLOD

Specify velocity along the body Y axis

Specify velocity along a vertical axis

Specify velocity along a West-East axis

Specify velocity along a South-North axis

Specify initial airspeed

Same as the --aircraft option

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

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

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 initial visibility in meters

Specify initial visibility in statute miles

Specify starting position relative to a VOR

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

Specify velocity along the body Z axis

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

Specify a waypoint for the GC autopilot;

binding subsystems 正在整合子系统

creating subsystems 正在创建子系统

downloading scenery 正在下载地景

Error loading 3D model

Errors occured loading aircraft systems (fuel, electrical, hydrualics)

Audio FX description contains errors

Errors loading terrain (BTG)

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.

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.

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.

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)

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.

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.

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

Problems occured 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 loading user-interface

Errors loading input device configuration

Texture failed to load

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.

Errors loading scenery

Errors downloading scenery from TerraSync

File or resource is invalid or corrupted

File or resource header is incorrect

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

The resource contains a configuration problem

Network connection failure

The file or resource was not found

Unable to allocate sufficient memory

Unknown error

Scripted loading of XML failed

Errors loading model XML

finalizing position 正在最后确定位置

finalizing subsystems 正在最后确定子系统

initializing 正在初始化

initializing graphics engine 正在初始化图形引擎

initializing scenery 正在初始化地景

initializing subsystems 正在初始化子系统

loading aircraft 正在加载飞机

loading aircraft list 正在加载飞机列表

loading navigation data 正在加载导航数据

loading scenery 正在加载地景

loading fixes 正在加载导航点

[VALUE]% complete

loading airport data 正在加载机场数据

loading navigation aid data 正在加载导航点数据

loading points of interest 正在加载兴趣点

reading airport data 正在读取机场信息

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.

Settings migrated

Unstable nightly build - some features may be under active development 不稳定的每夜构建版 - 某些特性或许正在进行开发

Drag while holding the right mouse button to look around 在按住鼠标右键时拖动鼠标以观察四周

Hold Ctrl while looking around to move the view up, down, left or right 在观察四周时按住 [Shift] 来将视角向上、下、左、右移动

Press a/A to adjust the simulation speed 按下 a/A 来调整模拟器速度（倍速）

Press x/X to zoom in and out 按下 x/X 来放大或缩小

Find frequencies of nearby ATC services from the Radios dialog 从“Radios”对话框可查询附近ATC频率

Press v to change your viewpoint, Ctrl-V to return to the cockpit 按下 v 来更换视角, 按下 Ctrl-V 即回到驾驶舱视角

Press F3 to take a screenshot 按下 F3 来截图

Join the FlightGear community at http://forum.flightgear.org 欢迎加入FlightGear社区，网址为 http://forum.flightgear.org

Press h to bring up a Heads Up Display 按下 h 来启用抬头显示器（HUD）

Show or hide the menu bar by pressing F10 按下 F10 来隐藏或显示菜单栏

Frame-rate too low? - try disabling AI traffic 帧率太低？ - 试试禁用AI交通

Select Environment → Weather to fly in different weather 选择 Environment → Weather 在不同天气条件下飞行

Press F12 to change the radio frequencies easily 按下F12可轻松更换无线频率

Look around by holding down the right mouse button and moving the mouse 按住鼠标右键并拖动鼠标以观察四周

Select Multiplayer → Multiplayer Settings to join the shared flight environment 选择 Multiplayer → Multiplayer Settings 来加入联机飞行

Can't get the engine started? - see Help → Aircraft Checklists 无法顺利启动引擎？ - 查看 Help → Aircraft Checklists

Drag while holding the middle and right mouse buttons to move the viewpoint 按住鼠标右键与中键并拖动鼠标以移动视角位置

Press / to explore the internals of the simulator 按下 / 来浏览FlightGear的内部属性

Press Tab to move the viewpoint with your mouse and use the scroll wheel to zoom 按下 Tab 后使用鼠标来移动视角，并使用滚轮放大或缩小

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

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

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

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.

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.

CAT II minimum

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

Core high pressure region

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

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!

Early morning fog

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

Fair weather

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

High pressure region

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

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

Low pressure region

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

Manual input

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

Marginal VFR

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

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

Thunderstorm

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