Validated three ways.
An attitude display is only as good as its evidence. FlySys Swiss PFD is checked by hand on the bench, automatically against recorded flight logs, and in the aircraft against independent references.
| By hand | bench checks — immediate feedback |
|---|---|
| Automatic | replay of recorded flights — reproducible |
| In flight | real sorties — independent references |
On the bench.
Move the IMU by hand and watch the horizon, heading and tapes respond immediately and in the right sense — pitch up, bank left, turn through a heading. No aircraft, no flight required.
Demo mode supplies synthetic motion, so the full display can be exercised with no hardware connected at all.
| Needs | the device (IMU optional) |
|---|---|
| Checks | sense & response of each instrument |
| Modes | live IMU · internal sensors · demo |
Recorded once, re-run forever.
Real flights are recorded as sensor logs. Those logs are replayed through the same processing that runs live — so a result can be reproduced exactly on a desktop, long after the flight. A change to the attitude pipeline is checked against this library of real data before it ever flies again.
Record
Each flight is logged as raw sensor data.
Replay
The log drives the identical live pipeline — same in, same out.
Compare
Output is checked against the display that was shown, frame for frame.
In the aircraft.
The display is flown in a real aircraft (a Robin DR400) and compared against references it doesn't itself use — bank derived from GPS ground track and speed, and altitude from the barometric reference — so attitude is checked against independent physics, not against itself.
| Platform | Robin DR400/180 |
|---|---|
| Bank reference | GPS ground-track & speed |
| Altitude reference | barometric |
| Goal | true bank in sustained turns |
The display you fly is the display we can reproduce.
Live and replay share one pipeline — what you see in the air can be replayed on the ground, identically.