Efis
🖥️ EFIS — Electronic Flight Instrument System
The EFIS replaces traditional mechanical flight instruments with digital displays (screens). It shows the pilot all essential flight information — attitude, airspeed, altitude, heading, and navigation — in an easy-to-read electronic format.
🧩 Main Displays
| Display | Function |
|---|---|
| PFD (Primary Flight Display) | Shows attitude, airspeed, altitude, vertical speed, and flight director. |
| ND (Navigation Display) | Shows route, waypoints, weather radar, and traffic (map view). |
⚙️ Inputs
EFIS receives data from:
- AHRS / IRS (attitude and heading)
- ADC (airspeed, altitude, Mach)
- FMS (route and navigation data)
✅ In short:
The EFIS is a digital flight instrument system that displays all key flight and navigation information on electronic screens — improving clarity, reliability, and pilot situational awareness.