MyNatTrack

iPad-landscape PWA for NAT HLA track / bearing / distance planning.

Not certified for navigation. Educational / simulator use only.

Live site

https://burbank.github.io/MyNatTrack/
(password-gated; Home Screen install remembers unlock)
Repo: https://github.com/Burbank/MyNatTrack

Features

• Named oceanic / landfall waypoints + diversion airports from bundled reference DB
• FMC-style coordinate entry (57N020W, N50W015, 5040N01500W, …)
• WGS-84 Vincenty initial track + distance (NM)
• Optional magnetic track (offline approximate magvar grid)
• Offline North Atlantic chart
• NAT OTS overlay: online via VATSIM natTrak (CORS); Mac serve.py prefers FAA NMS
• Settings: verification date, open Markdown reference, toggles
• Service worker: full offline after Home Screen install

Run on Mac (for iPad install / update)

cd "/Users/DuniaMBP/Library/Mobile Documents/com~apple~CloudDocs/CURSOR_PROJECT_REPOS/MyNatTrack"
python3 serve.py

On the iPad (same Wi‑Fi): open the printed http://<mac-lan-ip>:8765/ in Safari → Share → Add to Home Screen.

Then enable Airplane Mode and confirm the app still loads with waypoints, calc, chart, and Settings → Open reference.

Update waypoint accuracy date

1. Edit docs/NAT_HLA_Waypoints_Reference.md and data/waypoints.json
2. Set accuracyVerifiedOn in JSON
3. Bump CACHE version string in sw.js
4. Reload once from the Mac URL on the iPad so the new cache installs