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MGL iEFIS flight data log — export & score every landing

Your MGL iEFIS already records every flight to the SD card in the front of the unit — pull the card and upload the recording straight off it at landing.fyi, decoded natively. Every landing scored 0–100.

Covers: iEFIS (Explorer / Challenger / Discovery), Enigma, Odyssey, Voyager

MGL iEFIS / Enigma avionics
Step 1

1) The black-box is already recording

An MGL iEFIS keeps a rolling black-box on the SD card in the front of the unit — the last hour or two of flying, written automatically. For a normal flight there’s nothing to arm and no menu to open: just fly, and the recording is waiting on the card when you shut down.

  1. Make sure an SD card is in the front slot before you fly — the recording goes to that card.
  2. Fly normally. The unit captures the whole flight on its own.

To keep more than the rolling window — a long cross-country, or a second parallel recording — you pre-create a recording file on the card from the unit’s own menus. For the day-to-day case you don’t need it — the black-box has the landing.

MGL iEFIS glass display recording automatically to the SD card in the front of the unit
The black-box records automatically to the front SD card — for a normal flight there is nothing to switch on.
Already flown? Your recent flights are already on the card — the black-box captured them. Skip straight to Step 2.
Step 2

2) Pull the front SD card

After shutdown, eject the SD card from the slot at the bottom-right of the bezel. The whole flight is already on it as a binary recording — one of:

  1. iEFIS.REC on newer “Explorer” units, or IEFISBB.DAT on older Enigma black-box units. You may see one or the other; grab whichever is there.
  2. That file is the recording — the unit doesn’t write a .csv. Upload it as-is; landing.fyi reads the binary directly.
An SD card being removed from the slot at the bottom-right of an MGL iEFIS bezel
Eject the SD card from the bottom-right bezel slot — the iEFIS.REC or IEFISBB.DAT recording is already on it.

Lost the card? A 32 GB SD card is plenty — leave it in the front slot and it captures every flight. If a card won’t read, format it to FAT32.

Step 3

3) Upload the recording

Read the card and grab the recording file off it — iEFIS.REC or IEFISBB.DAT. Uploading it raw is the cleanest path: landing.fyi decodes the binary directly, no converter, and the numbers come straight off the unit.

Want the flight’s date attached? The raw recording carries the flight’s time but not yet its calendar date. If you want the date on your landing, first run the file through the free mgl_efis_plotter converter (or MGL’s own Windows recording tool) to a .csv — that keeps the date — and upload the .csv instead. Raw-file date support is coming; until then this is the only difference between the two paths.

On a computer

Put the SD card in an SD or USB reader and open it.

On a phone

A USB-C or Lightning SD card reader mounts it in the Files app — no app to install.

Upload at landing.fyi →

Grab iEFIS.REC or IEFISBB.DAT recording from the SD card and upload it — landing.fyi scores every landing in it.

Want feedback on your own landings?

landing.fyi scores every landing 0–100 from your avionics log — approach, glidepath, centerline, flare, firmness. Find your greaser.

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