Understand Your Aircraft Engine. Track Every Flight.
Free flight analysis, AI engine reports & pilot logbook for Dynon, AFS, MGL and Garmin G3X pilots.
Select a registration to view its flight data, or upload your own log file.
AeroGraph.org is a free, browser-based tool for owners and builders of experimental, homebuilt, and certified aircraft running Dynon, Garmin G3X, or Advanced Flight Systems (AFS) avionics. Upload your flight log — privately if you choose — and instantly see your engine and flight data as clear, interactive charts, complete with an AI-powered engine health report. Nothing to install, no account required.
Everything Your Flight Log Can Tell You
Works With Your EFIS
Upload logs from Dynon, Garmin G3X, MGL EFIS, or Advanced Flight Systems — CSV, ALD, or G3X, AeroGraph reads them all and builds your charts automatically.
Build Your Own Custom Graphs
Drag any combination of parameters onto the left and right axes to build exactly the graph you want, then save it to reuse on every future flight.
Built for Pilots Worldwide
Registration prefixes from over 200 countries are recognized automatically, from Canadian C- to Australian VH- to British G-.
LOP / ROP Mixture Tracking
Lean-of-peak and rich-of-peak mixture state is shaded right on the EGT chart, with time spent in each state broken out in your Flight Summary.
AI-Powered Health Reports
One click on Analysis gives you an instant, AI-generated engine health report covering temperatures, mixture, and oil system performance.
Printable Summaries, Private Logs
Every PDF export leads with a logbook-ready Flight Summary, and you can mark a tail number private while still finding it by direct search.
Deep Engine Diagnostics
Seven advanced charts — CHT/EGT spread, shock cooling rate, cylinder ranking, oil vs RPM, EGT deviation, power mapping, and estimated % power — surface engine problems early.
Automatic Logbook & Landings
Takeoffs and landings are detected automatically and matched to a worldwide airport database, then rolled into a complete Pilot Log Book.
Compare Flights Side-by-Side
NEWOverlay up to three flights on the same charts, aligned by elapsed time from engine start, to spot trends across your log history.
Coolant Temperature
NEWFor liquid-cooled engines like the Rotax and ULPower lines, coolant temperature gets its own chart with guidance on normal ranges.
Full-Screen Instrument Replay
NEWRelive any flight on a Dynon-style artificial horizon with live engine gauges, playing back at up to 40x speed over an FAA sectional chart.
Flight Track & 3D Playback
Your GPS track is plotted on a map colored by altitude, and you can launch a full 3D flythrough of the flight in Google Earth.
Every engine run in your log is detected automatically, out-of-range readings like an over-redline tachometer or low oil pressure are flagged for you, and your data never leaves your control — it's only ever used to build your own charts.
Whether you're chasing down an engine problem, watching trends over time, or just want a better look at your last flight, AeroGraph turns a raw log file into clear, actionable answers in seconds.
by Don White, creator of: OurChapter.org, PilotReminder.org, EAABuildersLog.org, YEDay.org, FlyingStart.org, GoClub.us, Searey.Us and many more.
See It In Action
Mouseover images to see full graph.
