Problems with the Beechcraft C90 autopilot and engine oil pressure

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1

Hi, I have a problem. Everytime I tried to set autopilot when using the Beechcraft C90, most controls don’t work and I don’t know how to avoid the engine oil pressure problems, like if the engines run down. So can you please show me exactly how to solve the problem? Thank you so much for your help.

                                                Sincerely,
                                           Connor Richey
3

Can you explain what is happening a bit better?

4

Well, the autopilot controls don’t work on the Beechcraft C90 in Microsoft Flight Simulator 2024. So how can I make them work?

5

Well, I cannot find any other post here that has mentioned this AP issue.
I would suspect it may be unique to your system.
Do you have any addons in your community folder?

6

I don’t have any MSFS 2024 add-ons.

7

I am a similar issue.
It appears VS mode is working even if the mode is not reported on the PFD
HDG mode is not working (airplace is not correcting to go in the commanded direction)
Also flightplan is not shown on the ND even if a flightplan was entered manually and there is an active leg reported inside the FMC (this part is covered by King Air C90 GTx FMS not communicating)

8

There have been a lot of reports of autopilot issues with the C90 if you are flying in career mode/ missions.

9

Glad this topic is here. I too am having problems with the AP on the Carenado Beechcraft C90 GTX. I am very familiar and comfortable with the Rockwell Collin’s Proline 21 Suite of avionics. But the AP in this aircraft in MSFS 2024 is so bad that I am thinking about just staying away from 2024 all together until after SU1.

Specific AP issues include:

  • Set altitude and engage FLC. Works great. However the AP does not enter altitude hold when the set altitude is reached, Aircraft just keeps climbing.

-HSI miscalibrated and does not accurately reflect heading deviation to the DTK. NAV mode does not engage.

Anyone else having similar issues? Has anyone heard if updates to the C90 will be part of SU1?

10

I seem to have a different issue with the C90 autopilot and have submitted a bug report. Before takeoff I typically set my heading bug to the runway heading and engage ‘Heading’ mode on the autopilot. I also pre-set a vertical speed of about 1600 fpm. With any other aircraft setup this way, I can takeoff, established my climb attitude, and then engage the autopilot and it will take
over, follow the pre-set heading, and climb according to the vertical speed setting. But in the C90 when I engage the autopilot it immediately nose-dives, and you can see the trim wheel rotating nose down. However, I found a way to avoid the situation until a fix is provided. Just before takeoff I engage autopilot and immediately disengage autopilot. At this point I readjust the trim wheel to my takeoff position, then enable VS and set my desired vertical speed. Once this is done I can takeoff, and when I engage the autopilot it seems to work ~normally without nose diving.

11

I will try that later.