Project Summary
The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project.
The goal of the FlightGear project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application. We are developing a sophisticated, open simulation framework that can be expanded and improved upon by anyone interested in contributing.
In a Nutshell, FlightGear Flight Simulator - FGAddon...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 2,322 years of effort (COCOMO model)
starting with its first commit in September, 2014
ending with its most recent commit 4 months ago
Quick Reference
GNU General Public License v2.0 or later
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
Project Vulnerability Report
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30 Day SummaryFeb 22 2026 — Mar 24 2026
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12 Month SummaryMar 24 2025 — Mar 24 2026
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