FlightGear

"FGFS", "Flight Simulator Plus", and "Pro Flight Simulator" redirect here. For the family of cell signalling proteins, see Fibroblast growth factor. For professional flight simulators, see Flight simulator.

FlightGear
Screenshot A Singapore Airlines Boeing 747-400 climbing out of Gatwick Airport
Original authors	David Murr, Curt Olson, Michael Basler, Eric Korpela
Developers	FlightGear developers & contributors
Release	July 17, 1997 (1997-07-17)
Stable release	2024.1.5  / 22 March 2026 (22 March 2026)
Written in	C++, C
Engine	OpenSceneGraph
Operating system	Linux macOS Windows FreeBSD Solaris or IRIX
Platform	Cross-platform
Size	1.54 GB (Main files)
Available in	5 languages
Type	Flight simulator
License	GNU General Public License
Website	www.flightgear.org
Repository	gitlab.com/flightgear/flightgear

The cockpit of a Boeing 777-200ER in FlightGear flight simulator

FlightGear Flight Simulator (often shortened to FlightGear or FGFS) is a free, open source multi-platform flight simulator developed by the FlightGear project since 1997.

David Murr started this project on April 8, 1996. This project had its first release in 1997 and continued in development. It has specific builds for a variety of different operating systems including Microsoft Windows, macOS, Linux, IRIX, and Solaris.

FlightGear is an atmospheric and orbital flight simulator used in aerospace research and industry. Its flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark to judge new simulation code to the standards of the space industry.