This profile is a modification of Octavi's stock MSFS General Aviation GNS530/430 MobiFlight profile, adapted for the C172's dual Avidyne IFD550 (FMS1) / IFD540 (FMS2). It assumes you're already familiar with that base profile:
- Base profile: https://www.octavi.net/ifr-1 → download "MSFS General Aviation GNS530/430"
Everything not listed below is unchanged from stock (COM1/COM2, NAV1/NAV2, AP, and the FMS knob/CRSR/DCT/CLR/ENT/PROC buttons all behave exactly as documented for the GNS530).
