License & Copyright

Source Code, Modules, and Libraries:

All FlightPath code is Copyright 2006 - Present by the original authors.

FlightPath is considered "open source" under the GNU General Public License (GNU GPL), version 3 or any later version. This covers any related files and documentation packaged with FlightPath.

This means that you may modify and redistribute part or all of FlightPath's code, but it must remain open source, under the GNU GPL.  You may NOT use any part of FlightPath's code in a purely commercial product whose source code is not also released under the GNU GPL, version 3 or any later version.

In other words, you can only copy FlightPath's code if your project is ALSO open source, specifically under the GNU GPL.  It cannot be proprietary or "closed source."

Note that you are not required to release your code under typical use, but you are required to under certain conditions.

See this page for our interpretation of the GNU GPL.

All FlightPath modules are also released under the GNU GPL version 3 or any later version, and fall under the same restrictions and protections.

The license is defined in full here:, and reproduced in the LICENSE.txt file which is included with FlightPath.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

FlightPath includes works under other copyright notices and distributed according to the terms of the GNU General Public License or a compatible license.

You may modify FlightPath's source code, but this copyright and license notice must not be modified, and must be included with the source code.

Images, Logos, Themes:

FlightPath's primary logo image (included with downloadable FlightPath package, in the Classic theme) as well as the images included in the Classic theme are released under the Creative Commons Attribution 3.0 License (CC-BY).  No further attribution for these images are required if they are used within the FlightPath software system, but attribution is required if they are displayed on other web pages or in outside documentation.

The images of screenshots of FlightPath found elsewhere on this site are also released under the same license (CC-BY).

For changes to FlightPath's copyright or license, see either this page or the included COPYRIGHT.txt file in the FlightPath download package, whichever is newer.

If you have any questions, please inquire via the Contact form or Support Forum.