VinceCB

For the sake of completeness in case anybody reads this thread in the future... Turns out I challenged the shop and they got back to me saying the person who wrote me was new and didn't quite understand what they were told. In fact, you can fly GPS approaches including LPVs without the OBS resolver. The only thing you lose is OBS mode. This will be acceptable for me until I swap my DG out for an HSI in a couple of years. Thanks to all contributed!

Thanks everybody. I'll double check with the avionics guy as to what he means. If he is correct, I'll be in touch with you Alan. Much appreciated!

I'll be taking over the care of N2711W for the next little while. Looking forward to contribute here when I can

Hi all, Long time lurker, first time poster as I just bought my Mooney this week. I will be replacing a KX-170B nav/com with Garmin's newish GNC355 waas/com. The CDI currently installed is an older design, I believe a KI-209, but the aircraft is currently getting its annual so I'm not 100% sure. The avionics shop that will (probably) do the installation told me: "One thing to note, if it matters to you, your existing indicator does not have an OBS Resolver compatible with the GPS. That will limit you to non-precision GPS approaches." I assume they are referring to LPV approaches here since the box doesn't have a nav radio and there is nothing else connected to the CDI (though LPVs technically aren't precision approaches?). Does anyone here know more about this? I thought no OBS resolver simply meant you couldn't use the OBS knob in OBS mode, though you could still input a radial in via the touch interface. Do LPV approaches really require an OBS resolver? If so, I may just be poorer than I thought Thanks, Vince