UFO from the 'White Project' of the UNESCO

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UFO from the 'White Project' of the UNESCO
Type Fictional aircraft
Author(s) ET
--aircraft= ufo
Status Complete
Supports Bombable
 Repository The development repository of the UFO from the 'White Project' of the UNESCO.
Download The UFO comes as part of the base package.

With the UFO you can place 3D objects in the FlightGear scenery (see Placing 3D Objects with the UFO). The UFO is not shown to other users over the MP network.

The UFO debuted in September 2002, with FlightGear 0.8.0.


Exported data are written to:

  • Object positions E: $FG HOME/Export/ufo-model-export.xml
  • Flightplan N: $FG HOME/Export/ufo-flightplan-export.xml

Note for Mac: $FG HOME is a hidden directory. To enable viewing of the xml file from the Finder application:

  1. Choose "Go" from the Finder menu
  2. Choose "Go to Folder..."
  3. Key in the folder pathname as given above
    • Replace (username) with your Mac user name
    • Do not key in ufo-model-export.xml
  4. Click "Go"
  5. Select the "Export" sub-directory


To import and continue working on previously saved You can later reload the XML file with --config= command-line parameter:

Example for Linux:

fgfs --config=$HOME/.fgfs/Export/ufo-model-export.xml

In Windows, this is done using the Advanced dialog, found on the last page of the FGRun GUI.

  1. Click Advanced
  2. Select General
  3. Locate the field Config and click ...
  4. Browse to the ufo-model-export.xml file and click OK.

Aircraft controls

Ufo positioning

Key Function
PgUp Fly faster (accelerate)
PgDown Fly slower (decelerate)
B+PgUp Fly backward (hold key)
[/] Decrease/Increase maximum speed (this will help you controlling the UFO that can be too fast sometimes)
Home Hover Up (increase ufo altitude)
End Hover down (decrease ufo altitude)
. Hover right
, Hover left
P Toggle radar panel
Mouse Wheel Hold down to move freely forward, backward and turn left and right while staying at the same altitude. Hold Shift to move faster.
Mouse Wheel+Mouse Back Hold down to move freely up, down and sideways without moving forwards or backwards. Hold Shift to move faster.
G+Mouse Click Teleport to selected place.

Object controls

Object management

Tip  If you are using the headtracker add-on, disable it before starting FlightGear when using the UFO to place objects. The Shift+= binding for centering the view will interfere with the UFO's binding for showing the Adjust Model dialog.
Key Function
Mouse click Add model to scenery
← Backspace Remove selected object(s)
Alt+Mouse Click Move selected object(s) to new place. (Linux users may need to disable the built-in "Move window" functionality tied to this key combo)
Ctrl + /// Move selected object(s) away/nearer/left/right
Ctrl+Mouse Wheel Move selected object(s) away/nearer/left/right
Ctrl+Mouse Wheel+Mouse Back Move selected object(s) up/down and rotate.
M Toggle marker for active (last selected) object
= open/close adjustment dialog (versions older than 3.0 uses Tab ). =) holding Ctrl or Shift down makes slider effects coarser/finer.


Key Function
Ctrl+Mouse Click Select nearest object
Shift+Mouse Click Add new object to selection
Shift+Ctrl+Mouse Click Add nearest object to selection
The model adjustment dialog


Key Function
Space Open/Close model selection dialog
Ctrl+PgUp/PgDn Cycle through model list
L Load model file via file selector

Export data

Key Function
d Dump object data to terminal.
E Export object data

Flight plan

Key Function
N Export flight plan

Take measurements

The Cursor

If you click on the ground you will place the cursor (Aircraft/ufo/Models/cursor.ac). The cursor is a 3D cross. The size of the cursor is 10 x 10 x 10 m. Each of the 6 arms is 5 meters long. The blue stripes mark 1m, each of the white and red stripes is 10cm long.

Ground material and elevation

Key Function
Ctrl+Alt+Mouse Click A pop-up box will appear showing information about the landclass at that point and the elevation. This information is also output into the console.


  1. Latitude and longitude (lat and lon) at that location.
  2. Name of the regional definition file where the active regional definition is defined (in FG 2020.3.9 and later, or nightly builds as at May 2021) . Usually it's in data/materials/regions e.g. Europe for europe.xml or Norway for norway.xml
  3. A block of landclasses for which a regional appearance is defined in the regional definition file from 1) . The landclass at that location is one of these.
  4. Elevation in meters at that location