The Avidyne Entegra integrated flight deck system consists of:
What does the FlightMax Entegra ADAHRS use to replace the traditional gyros?
If the PFD fails, can a flight continue?
Yes, under VFR ONLY with the standby instruments
If the MFD fails, can a flight continue?
NO.
Loss of engine instruments and fuel guages in accordance with 14 CFR 91.205