Questions About Using in 2024

FlyRvR

Hello!
I've just purchased the Arrow III in MSFS 2024! It's my first aircraft purchase, and I really like it. LOTS to like in a lot of ways, but I do have questions:

Primary question is about how to get the HSI to activate slaved to the GPS. I see the NAV/GPS switch, and the OBS instruments do work as intended, but the HSI only works in NAV mode -- Unless I'm missing something?

I'm going to go try it in 2020, and see if I'm getting the same problem. I'll save some other 'bugs' I'm seeing for after I test in 2020.

FlyRvR

OK, an update after some more testing:

In 2020:
-- The HSI works as it should, however, the inop flag is showing even when it is working.
-- The LOC signal and needle keep working on the OBS #1 even when in NAV mode on an approach with the GPS.
-- The Auto Gear Extension seems to be working oddly -- it properly flashes when it is not engaged, but when under normal flight settings, if you engage the Auto Gear Extension switch, the gear will drop as if you are in slow flight, or have flaps, or have low MP settings.

In 2024:
-- The HSI seems to work fine during NAV or GPS mode, but then switches off when the GPS moves from TERM to LPV mode while on approach.
-- HSI glide slope does actually work when on an LPV approach!! -- but only when switched into NAV mode, which means the LOC needle stops working with the GPS.

Mark

The navigation logic used in the PA28 largely depends on what GPS is selected at the time. If the GPS100 is selected, the aircraft will be using our in-house autopilot/navigation code. If the Working Title GNS530, PMS50 GTN750, or TDS GTNXi is fitted, then the respective GPS autopilot/navigation code is used. There will be some differences in logic between each GPS as each GPS is developed by a different developer, and there will likely also be differences between MSFS 2020 and MSFS 2024 due to differences in framework between the GPS logic in both simulators (particularly with the Working Title GNS530 and PMS50 GTN750).

However, with all of the GPSs, it should be the same steps to get the HSI displaying the GPS flight plan:

Load a flight plan into the GPS (in MSFS 2024, this can be done manually or via the MSFS 2024 EFB)
Press the CDI button on the GPS so that "GPS" mode is active (this should also be linked to the NAV/GPS switch on the console).
If you wish to track a navaid with the GPS, press the CDI button again so that VLOC mode is active and then tune the VOR frequency into the VHF radios (remembering to flip the frequency from the standby to active field).

Hope that helps.

Mark - Just Flight