Changelog 2018.3

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Revision as of 14:34, 7 December 2018 by Hooray (Talk | contribs) (Other: let's try to avoid "Honda Jet"-like incidents by using more careful wording)

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Available in: English, Chinese.

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The FlightGear development team is delighted to announce the v2018.3 release of FlightGear, the free, open-source flight simulator. This new version contains many exciting new features, enhancements and bugfixes including usability improvements to the launcher, improved scenery for Hawaii and the Arctic island of Jan Mayan, Italian, Chinese and Russian translations, better visuals for AI and MP aircraft.

Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums.

FlightGear features more than 400 aircraft, a worldwide scenery database, a multiplayer environment, detailed sky modeling, a flexible and open aircraft modeling system, varied networking options, multiple display support, a powerful scripting language, and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute.

Download FlightGear v2018.3 for free from

FlightGear - Fly Free!


  • Flightplan loading within the launcher.
  • Chinese, Russian and Italian translations for the launcher and UI
  • Improved support for the state of the aircraft depending on starting location - cold and dark on the ramp, engine running ready for take-off on the runway, or in cruise flight.


  • Improved joystick configuration and binding options.

AI / Multiplayer

  • Multiple Levels of Detail (LoD) for MP and AI aircraft. To improve performance, low-detail models are used when the viewer is far from the MP aircraft.
  • Fallback models to display in the case where a viewer does not have the MP aircraft installed.
  • Many improvements to AI models including new liveries, timetabled movements


  • Support for retrieving Canvas images over HTTP. This is a useful feature for displaying instruments like a PFD, ND, EICAS or any MFD externally from the FlightGear 3D main window in a separate window or on a separate monitor, computer or a mobile device. See Read_canvas_image_by_HTTP for more information.
  • Improved cloud rendering with stronger Mie scattering on cloud fringes, improved scattering on cirrus clouds
  • Reset: wipe the Effect UniformCache


  • Improved scenery for Hawaii, the default location for this release.
  • New scenery for Jan Mayen, situated northeast of Iceland. Including the active volcano of Beerenberg (2277m).


  • The feature fail_hardover of the <actuator> component was not giving the correct output in some occurences when clipmax was smaller in absolute value than clipmin.
  • Tables CORNERING_COEFF could not be used for BOGEY contact points.
  • Bug fixes for JSBSim atmosphere model at very high altitudes
  • Fixed PID integration with the 3rd order Adams-Bashforth was inccorect.
  • The fail_stuck property of sensors (accelerometers, magnetometers, gyro, etc.) without a <lag> element was setting the output to zero instead of sticking to the last output value.
  • When a sensor was stuck, the drift, gain, bias and quantization of the last output before being stuck were ignored.
  • Fixed the Calibrated Air Speed (CAS) computations for supersonic velocities
  • Fixed the Nlf (Normal load factor) sign
  • Nlf can now be specified as an initial condition via the property ic/targetNlf
  • Added blocking sockets to the input features
  • Added a property to piston engines to get the AFR (Air to Fuel Ratio)
  • Added conversion from m/s to ft/s
  • Restored the initial conditions for engines running (-1 means all engines)

Significant Aircraft Updates

  • "Metadata" has been added to many aircraft, making it easier to find new exciting aircraft to fly using the launcher, whether you are interested in aircraft from the 1920s or twin engined business jets.
  • B-25 : Various bug fixes and minor improvements
  • Cessna 172 : Improved cockpit, interior lighting.
  • Citation II : New panels, radio instruments. Complete remodeling of the electric system, with accurate bus voltage, circuit breakers. System test knob implemented.
  • F4U : new FDM
  • F-14 : V1.8. Improved flight model, particularly in a low-speed regime. Improved cockpit.
  • F-15 : V1.8. Updated flight model, particularly armament mass location. Performance optimizations. Autopilot improvements.
  • F-16 : v3.0. Store options. New liveries. Radar performance optimizations. Autopilot and system improvements. FDM fixes.
  • Saab 37 Viggen : Version 4.313. Various updates, particularly to radar and armament models.
  • Seneca II: Long range tanks, interior lighting,
  • SpaceShuttle : Milestone-10. Improved interior (including furry velcro), launch guidance and orbital plane targeting, more realistic OMS burn procedures, expanded systems including circuit breaker simulation and failure modeling.
  • 777: Our flagship airliner now fully supports checklists, allowing you to learn everything about the aircraft from within the simulator. Full support to auto-push was also implemented. Bug fixes and minor improvements.


  • FG1000 glass panel display, inspired by moving map devices like the the Garmin G1000
  • Improved Replay handling of AI aircraft and carriers - judge your own carrier landings.
  • KC-130 tanker aircraft for air-to-air refueling
  • Flightplan GPX import now supports elevation values.
  • TACAN: Add support for setting TACAN by frequency