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AFCS failure on cold start


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Posted (edited)

I'll preface this post by first saying nice mod ED she looks great!

However, no matter how many times I've tried, and even during the cold start tutorial, the AFCS system fails and I get a caution after the bit test. It's okay on a hot start, but I cannot get the system to work on a cold start, 

I use a Moza AB9 FFB base and stick, and at first I thought that the sticks' feedback was upsetting the position of the stick in the cockpit during the bit, but I get the same results even if I disconnect the Moza stick, so at the moment a hot start is my only option.

Has anyone else encountered similar issues.

Edited by Major Corvus
Resolution of one of the issues which was a hardware issue.

Kit: AMD Ryzen 9 9950X3D, ASUS ROG CROSSHAIR X870E HERO, ASUS 5090 ROG ASTRAL, 64 GB, Varjo Aero HMD running Open VR

       Thrustmaster Warthog Hotas, Moza AB9 FFB, Thrustmaster Pendular rudder peddles

MODS: Pretty much all of them

 

  • Major Corvus changed the title to AFCS failure on cold start
Posted

OK I have found that the AFCS start up takes control of the stick and deflects it. So the way that works for me is to completely let go of the stick while it's going through the start. I can imagine a FF stick might be an issue? but I don't know.

Posted
10 minutes ago, Ian Boys UK said:

OK I have found that the AFCS start up takes control of the stick and deflects it. So the way that works for me is to completely let go of the stick while it's going through the start. I can imagine a FF stick might be an issue? but I don't know.

Don't touch anything when Afcs does it's thing. I use joystick without FF and no problems so far. Successful bit first time. Now i am not sure about FF. Maybe it can create problem, but should not output force if nothing is resisting ?

  • Like 1
Posted

Same issue here with FFBeast- i'm not touching anything and the test sequence fails. Tried different profiles with different effects- still no change. The test deflection of the stick without any joystick plugged in look way too different than with the FFB base on. 

Posted

I tried it several times without touching the stick (FFBeast as well), and it fails every time. The stick was moving on its own during this procedure. I guess I will have to try holding the stick, but I have a feeling it may misalign anyway. I doubt that I’ll be able to keep it in exactly the same position, especially when it tries to move on its own.

  • Like 1
Posted

Not sure if this is a specific issue due to options in the server, but whenever starting a cold jet in the contention multiplayer server the gyros won't align after waiting 30-40 seconds to let them warm up and pressing the J + 9 keys. Also no matter how long i wait the fast alignment complete light won't come on.

Im mission editor, just placing a jet on random airfield I can get everything to work fine. So I'm not sure where the issue is.

Posted
I tried it several times without touching the stick (FFBeast as well), and it fails every time. The stick was moving on its own during this procedure. I guess I will have to try holding the stick, but I have a feeling it may misalign anyway. I doubt that I’ll be able to keep it in exactly the same position, especially when it tries to move on its own.
It's probably a bug, and it might be correct that it moves. I haven't read the manual.

Sent from my SM-A536B using Tapatalk

Posted (edited)

Hi,

Noticed that during cold start, when switching on the six pack below the battery switch one by one, the HDG flag disappears on the HSI until the NAVIGATION switch is turned on.  As soon as the NAVIGATION switch is on, the HDG flag reappears and stays on.  No gyro alignment takes place after waiting for 40 seconds and then holding both the J and  number 9 keys for 15 seconds.

The gyros will not align even during Autostart.

Tried both the short and long repair and even uninstalled and reinstalled the Mig 29 Fulcrum.  No help.

Flew the Mig 29 only in multiplayer.

 

Update:  The above seems to happen only on 4YA servers.  Just tried different servers and there is no problem. 

I have advised 4YA admin.

Edited by Super727
  • Like 1
Posted
Probably not, but without a track, we cannot know. This is not something we can reproduce.
I'll take your word for it!

Edit: I worded myself badly in the previous post. I didn't really mean "bug". I was more thinking "issue" with FFB setups. My computer is dead so I can't check myself.

Sent from my SM-A536B using Tapatalk



Posted (edited)

I'm also seeing this issue. Track file from the training mission here: https://drive.google.com/file/d/1Ktbs_3u4rQWr0vo5LfA1YOglDKnPemo_/view?usp=sharing

I'm not using a Force Feedback stick either. Additionally, the in cockpit stick does not move when adjusting trim or starting the AFCS


EDIT
Force Feedback was enabled for some reason. Disabling it solved my issue since I'm not using a force feedback stick.

Edited by LockeyNoS7even
found solution
Posted

I've encountered this with the MOZA AB-9 FFB Base, and I'm testing for a workaround. It has something to do with granular movement from the forces, while the stick should have no input. Will come back with results.

AC

  • Like 2
  • Solution
Posted

Ok I confirm I found the SOLUTION for users using the moza AB9 ffb base. Please make sure you select the Froogfoot default profile in the MOZA AB9 Base app aka Moza Cockpit app.

You don't need to hold the grip anymore, as once the test has started, eventually the stick will move to the left, and center. 

Test was completed and trim works as well as dampener OFF light is now unlit.

Remember, fly safe!

I will mention this in my video

AC

Digital Combat Simulator 9_18_2025 11_58_36 PM.png

Digital Combat Simulator 9_18_2025 11_58_30 PM.png

  • Like 2
  • Thanks 2
Posted

Holding the joystick whilst the AFCS does its start up bit didn't fix the issue. However HIP Game's solution of switching to the default Moza Frogfoot profile in the Moza cockpit app did solve this problem.

I noticed that the stick moved through a much greater range of movement with this profile set, and I was able to switch to my preferred Mig 29 profile after the startup, which although being a bit of a drag as I have to unplug and climb out of my VR simpit to do so, is at least a work around. 

First world problems eh? 

  • Like 1

Kit: AMD Ryzen 9 9950X3D, ASUS ROG CROSSHAIR X870E HERO, ASUS 5090 ROG ASTRAL, 64 GB, Varjo Aero HMD running Open VR

       Thrustmaster Warthog Hotas, Moza AB9 FFB, Thrustmaster Pendular rudder peddles

MODS: Pretty much all of them

 

Posted
On 9/18/2025 at 3:09 PM, BIGNEWY said:

please include a track replay so QA can check it. 

Included for your QA.

This track did not use the Moza Frogfoot preset as per HIP Gaming's work around, but my own custom MIG 29A preset

failed acfs on cold start.trk

  • Like 1

Kit: AMD Ryzen 9 9950X3D, ASUS ROG CROSSHAIR X870E HERO, ASUS 5090 ROG ASTRAL, 64 GB, Varjo Aero HMD running Open VR

       Thrustmaster Warthog Hotas, Moza AB9 FFB, Thrustmaster Pendular rudder peddles

MODS: Pretty much all of them

 

Posted

Here is an additional track.  This is a cold start with a FFBeast joystick.  Five attempts were made.  The first and last attempt was hands off the stick and the middle three was with some hand pressure on the stick.  All five BIT attempts failed.

Hope this helps resolve this problem.

AFCSfailFFB.trk

  • Like 1

9800X3D (5.21GHz Turbo), RTX 5090 OC 24GB, ASUS ROG Strix X870E-E GAMING Motherboard, G. Skill Trident Z5 DDR5 RAM 96GB (2x48GB), Crucial P3 Plus 4TB PCIe Gen4 3D NAND NVMe M.2 SSD, Virpil Alpha Joystick with FFBeast FFB base, T-50CM3 Throttle, MFG Xwind rudder pedals, Pimax Crystal Super VR.

Posted (edited)

I’ve got a Moza AB9 and was playing around with the settings. Looks like the main issue is the force-feedback mode—it’s gotta be set to Integrated, and the axis travel has to be Linear.
The rest of the stuff in the basic settings doesn’t really seem to make any difference.

I’m flying with the MiG-29 (Crazy Andy) profile I grabbed from the Moza Discord.

Edited by Jarda

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