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777 Captain II (P3D4) >> 777 Captain II - General >> Aircraft Loses Control On Autopilot https://www.captainsim.org/forum/csf.pl?num=1555590415 Message started by newmanix on Apr 18^th, 2019 at 12:26pm

Title: Aircraft Loses Control On Autopilot
Post by newmanix on Apr 18^th, 2019 at 12:26pm

Regardless if I run a complete preflight setup through the CDU or simply takeoff, level, and engage the autopilot with heading, the aircraft begins to spin completely out of control barrel rolls and all. Completely unrealistic. Why is this happening?

Title: Re: Aircraft Loses Control On Autopilot
Post by Markoz on Apr 18^th, 2019 at 4:43pm

I don't know why it's happening to you, as I have done many successful flights.

Title: Re: Aircraft Loses Control On Autopilot
Post by newmanix on Apr 18^th, 2019 at 9:43pm

Hi Markoz,

Simply stating you have not experienced my issue doesn’t offer any constructive input or otherwise have any relevance whatsoever to my problem. I believe that’s the purpose of bug reporting. Not everyone is going to experience the same issues necessarily.

That said, the issue exists. Leave the CDU completely out of the equation. Complete taking off and leveling out the aircraft manually then activating auto pilot to hold the heading, the aircraft begins to barrel roll and spin out of control. I’ve got plenty of video.

Title: Re: Aircraft Loses Control On Autopilot
Post by darialove on Dec 13^th, 2019 at 4:41am

I have the same problem, but only in B777-300ER models，200/200Er work will. once i engage autopilot the aircradt star to roll
towards left or right extremely

Title: Re: Aircraft Loses Control On Autopilot
Post by Fly from Portland on Dec 15^th, 2019 at 2:00am

I complained about this a long time ago and have not flown it since, just flying other aircraft till they get around to doing updates "next year".

Title: Re: Aircraft Loses Control On Autopilot
Post by Captain Sim on Dec 16^th, 2019 at 3:11pm

darialove wrote on Dec 13^th, 2019 at 4:41am:

I have the same problem, but only in B777-300ER models，200/200Er work will. once i engage autopilot the aircradt star to roll
towards left or right extremely

Pls attach a flight saved right before the AP engagement.

Title: Re: Aircraft Loses Control On Autopilot
Post by newmanix on Dec 21^st, 2019 at 9:35am

Not sure if this will help anyone but for me the issue was my hardware controls. I disabled them all and re-assigned in P3D. If you are using some kind of external software that injects the inputs into the sim, disable that. and calibrate direct in P3D.

Title: Re: Aircraft Loses Control On Autopilot
Post by N90831 on Jan 5^th, 2020 at 5:20pm

Not to say the condition does not exist but I have never had a Captain Sim product barrel roll or turn out of control or anything out of control.
However, what I have experienced is on a long flight there have been times when the aircraft (777) is following the flight route and then for what ever reason won't pick up a way point which results in off course condition. When I check the FMC the way point is in fact in the FMC. This doesn't happen all the time but on at least three occasions during the last month while doing a long haul.