Poll: Any Reason to Install Marker Beacon Receiver/Antenna?
What's your informed opinion? Is there any reason to install a marker beacon antenna and receiver? Any implications for international flight under IFR if your airplane is not equipped with a MB receiver?
It seems most instrument approaches now don't need one if an IFR approved GPS navigator is installed. What happens if GPS is out and you need to do an ILS? Is it legal to begin such an approach without either GPS or a functional Marker Beacon?
Some sources I've found have suggested it's not necessary, but none of them seem to be authoritative.