AP Altitude

[dresoccer4]

Hey there! I just started learning the awesome F-14.

Wanted to see if the Autopilot is working as intended at the moment? Specifically the AP altitude hold? i'm following Chuck's guide to the T however after flying straight and level and enabling the AP master and AP altitude then pressing autopilot reference, the plane lights up a/p ref and takes over, entering a -300fpm descent. 

No matter if I enable AP in a light climb or straight and level., the AP will take me into a gentle descent. 

[Lt_Jaeger]

Nah, AP is currently looked at.

 

The problems are known and should be rectified soon (I hope)

[winghunter]

Its broken but you can make it work

Fly several seconds as level as possible using trim (not stick) and engage the AP reference. If it fails due to initial trim getting outside of 100 vspeed/sec ,re-trim level and try again

Edited March 14, 2022 by winghunter

[IronMike]

We're generally done with the AP overhaul, so the new one is coming in this patch. ACLS needs to be finished afterwards and unfortunately we have to push a tiny hotfix for HDG hold after the patch, but we're quite pleased with the new AP. It is modeled after the real system including its limitation and in the future will not be prone to FM changes anymore.

[dresoccer4]

On 3/15/2022 at 12:04 AM, IronMike said:

We're generally done with the AP overhaul, so the new one is coming in this patch. ACLS needs to be finished afterwards and unfortunately we have to push a tiny hotfix for HDG hold after the patch, but we're quite pleased with the new AP. It is modeled after the real system including its limitation and in the future will not be prone to FM changes anymore.

sweet! do you know if its behavior matches Chuck's Guide or will that need to be updated to reflect the new changes?

[IronMike]

7 hours ago, dresoccer4 said:

sweet! do you know if its behavior matches Chuck's Guide or will that need to be updated to reflect the new changes?

It kinda matches, if you regard the +/-200FPM not as a hard coded limitation, but a best practice procedure. You really should not engage it outside of it. The difference before basically was that we had it as a requirement, because this was pilot procedure. However the real autopilot did not have such limit. Use outside of these limits at your own peril.