CDI not centering when flying using FMS |
Post Reply |
Author | |
jfwharton
Check-In Staff Joined: 20 Feb 2018 Points: 32 |
Post Options
Thanks(0)
Posted: 24 Feb 2018 at 1:01am |
When I fly this aircraft using the FMS I have noticed that the CDI does not center when following a course between waypoints. I use FS FlightControl to monitor my flight path and it shows the aircraft on course yet the CDI is not centered. Most of the time it is full deviation left or right of course. Is anyone else experiencing this issue?
|
|
ThomasAH
P/UT Joined: 11 May 2016 Points: 144 |
Post Options
Thanks(0)
|
The manual shows the HSI with CDI on page 27 and says:
"3. VOR/INS/NAV window – indicates which navigation source the HSI is using (VOR, INS or NAV)" But when trying it (I used the FMC version) I could only make it show VOR (here the CDI works if tuning to a VOR on NAV1) or ILS (when tuning NAV1 to an ILS), but not NAV (like shown on page 139 with the INS version), I haven't tried this with the INS version yet. The Radio/FMC switch was set to FMC, and the FMC contained a valid and active flight plan. And I don't know exactly what the NAV/GPS switch on the GPS popup is supposed to do, maybe this can help here? |
|
jfwharton
Check-In Staff Joined: 20 Feb 2018 Points: 32 |
Post Options
Thanks(0)
|
The issue I have with the manual is it doesn't tell you how to use the FMS, just what the switches do. And the example is for the INS not the FMS. So I guess I'll keep working on it. Thanks for the input.
|
|
ThomasAH
P/UT Joined: 11 May 2016 Points: 144 |
Post Options
Thanks(0)
|
Loading an FSX flight plan and then using "Load ATC RTE" makes it easy to get the waypoints programmed. For my test above I then did not use VNAV, so I did not need to adjust the altitudes in the FMC.
Everything else was easy enough to find out for me without using the manual, even though I don't have much experience with other FMC/FMS systems. I experimented a bit with changing the cruise altitude (which worked fine) and selecting the ILS transition for the arrival airport (which worked fine, too), but in the end I failed to line up with the ILS and had to do a manual go-around and at some point quit the simulator because the AP did behave in unexpected ways (due to pilot error), but it was a fun experience. Maybe just try the INS? |
|
speedbird438
Check-In Staff Joined: 07 Feb 2019 Location: London Points: 6 |
Post Options
Thanks(0)
|
Hi, if you're flying it with the FMC then use the GPS switch on the GPS panel view. Once you'r eon approach and want to pick up the ILS approach - turn the GPS switch to NAV and so long as you've set the ILS frequency properly you'll be able to pick up the ILS.
|
|
Over 20 year FlightSim P3DV4, XP11 FSX
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |