Airframes Public Data

This data is collected, crafted, curated, processed, pruned, and otherwise prepared for public consumption. You may use this data in your own applications and products. We have done the dirty work to find and provide the data in a central place in standard formats.

We encourage additions and corrections to the scripts and data via Pull Requests.

If you do wish to use the data in your project, please be respectful of the licensing terms. There are three options:

Non-Commercial License
Non-Commercial Significant Contributor License
Commercial License

This data repository offers some common aeronautical elements, and is separate from the feed messages historical database (of which we do plan to offer access to via API — free for feeders and significant contributors).

Non-Commercial License

Use of the data here for your non-commercial projects is allowed & encouraged. There is no cost to you. We only ask for a small attribution is made to help reinforce awareness of our efforts and to encourage others to submit improvements (which in turn benefits you). This is optional! Republishing the data and representing it as your own is prohibited,…

score = signal / reach signal = 0.25·commit_velocity // commits in last 90 days (cap 30) + 0.20·contributor_work // unique authors × velocity (cap 100) + 0.20·issue_resolution // closed ÷ total issues + 0.20·fork_ratio // forks ÷ stars (proxy for real usage) + 0.10·release_cadence // releases in 90 days (cap 3) + age_bonus // +0 to +0.30 after 6 months + homepage_bonus // +0.05 if homepage is set reach = log₁₀(stars + watchers + 10)█

health = 0.35·recency // days since last commit (90d decay) + 0.25·cadence // commit rhythm consistency + 0.20·issue_health // closed ÷ total issues + 0.20·pr_health // merged ÷ total PRs█

Healthy 80 – 100 active, responsive, regular releases Stable 60 – 79 maintained, steady, no alarms Quiet 40 – 59 slowing down — watch this one At Risk 0 – 39 going dark · candidate for rescue█

solo_builder one person holds > 80% of commits (last 180d) needs_contributors has open "help wanted" or "good first issue" labels hidden_gem < 100 stars · active in last 3 months · documented legacy_hero repo > 5 years old · committed this year fork_magnet forks/stars > 0.5 · used as template or dependency release_machine 5+ releases in the last 90 days under_pressure > 10 open issues · ≤ 2 contributors · health ≥ 60 community_watch watchers > stars · devs tracking before the public community_hub GitHub Discussions enabled · > 20 discussions funded maintainer has active funding channel█