Hi everyone,
I’m posting this here in case another user has already seen the same issue and found a workaround before support replies.
I bought the TOGA Simulations MU-2 Marquise v2 for XP12 and I’m having a strange AFCS / HDG / autopilot problem.
I want to be clear that I’m not posting this as a “quick question” without checking first. I have already:
searched through forum threads
read the available documentation
watched videos
tested different startup sequences
reinstalled the aircraft
checked bindings and controls
and I have already opened a support ticket with X-Aviation
After a lot of testing, this is what I have been able to isolate:
HDG does not latch on battery power only
HDG does latch when the aircraft is powered from the APU
HDG can remain latched with APU on, even after both engines are started and the condition levers are advanced to takeoff
but the moment I remove APU power, HDG immediately disconnects
because of that, the AP becomes unreliable or unusable
So at this point it looks less like a normal “how to use the autopilot” problem and more like an AFCS electrical power / bus transfer / plugin initialization issue.
I also found some related threads, but none of them gives me a final answer for this exact behavior.
Has anyone here seen this?
Especially this exact pattern:
battery only = no HDG
APU on = HDG works
APU off = HDG drops
Any hint would be very appreciated.
Thanks a lot.
