The FlightGear development team is delighted to announce the v3.4 release of FlightGear, the free, open-source flight simulator. This new version contains many exciting new features, enhancements and bugfixes. Highlights in this release include frame-rate improvements on some systems, reduced memory usage and enhancements to the built-in web server.

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 multi-player environment, detailed sky modelling, a flexible and open aircraft modelling 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 v3.4 for free from FlightGear.org

FlightGear – Fly Free!

Major enhancements in this release

Performance

Improved frame-rates on some systems from more efficient use of Uniforms

Reduced memory occupancy for scenery tiles

AI models are now rendered based on display size rather than range

AI/MP models may now define objects as being part of the interior, which will not be rendered at large distances

Usability

Built-in web server now includes a moving map, a screenshot grabber, and supports SVG-based panels

In-application launcher for Mac, based on Qt5

Graphics

Improved rendering of runway and other lights under ALS

Landing and spotlight support for ALS

Scenery

Improved materials XML format making customer material definition easier

Procedural rock material definition

JSBSim

Synchronization with latest JSBSim

Highlighted new and improved aircraft

Extra EA-500

North American P-51D Mustang

Cessna Citation II

F-14b

Other

Firewall exceptions are automatically added during setup on Windows systems

Aircraft moved to a SVN repository.

Bug fixes