A P

[patrico 5]

Can anyone give me possible reasons why the autopilot in my T7 has suddenly stopped working and will not engage, bearing in mind I have using it successfully for many years

[Budbud 227]

Any recent update in version or change in the options? Maybe realistic AP engagement option previously off and now ON?

[downscc 1,327]

What do you mean "stopped working?"  Can you be a little more specific please.

[patrico 5]

it will not engage Major i.e turn green

no changes Bud

[Budbud 227]

Are you able to reproduce it on every flight?

I know you said you have used successfully for many years but... just to ensure it is not a wrong manipulation but a bug, have you checked all the conditions for the AP engagement?

Amongst others:

_ F/Ds ON

_ No force applied to the yoke/control wheel (if realistic AP engagement option set to ON)

_ Trim correctly set

_ Above 400ft AGL...

_ IRS aligned

_ Any warning on the EICAS?

_ Any failure activated?

 

What is the situation when you try to engage the AP?

(MCP modes, aircraft attitude...)

 

Maybe a few screenshots would help (main panel with PFD, ND, EICAS, and overhead panel).

[patrico 5]

Hi Bud,

thinking some more on  your first post on  this subject I have made some changes I forgot  about, I have now mapped  my Saitek Pro Flight Yoke  to  FSUIPC as FSX could not handle I thought I had done the calibration correctly  ( obviously not  )  as I am certain that's where the problem is.On looking at the synoptic on the T7 by pressing the FCIL button  my PFD, I can see clearly see he elevator  reflected downwards. I tried using my yoke to center it, but it only moves hard up or down. I have tried in vain to  calibrate it , but at least  now I know what the problem is

[Budbud 227]

Great! Now you don't issue with the AP anymore but rather with the yoke calibration... 

 

How did you configure the yoke in fsuipc? Direct calibration? fsx axis?

 

I personnally use the 737 PFC yoke configured in direct calibration but with no calibration at all in the calibration window of fsuipc and it works fine.