I took off from VHHH (heading towards EDDP), climbed to cruise level, disconnected from vatsim and went away from my computer. After 8 hours I come back and i see that my aircraft is making weird S turns and the autopilot is screaming at me. What really surprises me is that it turned left in chineese airspace to a heading of 180 and headed straight down through thailand/malaysia and ended up all the way exactly about where the wreckage from MH370 was found outside perth.

Is this a known "feature" / bug?


 

 

 

Is this a known "feature" / bug?

 

Are you serious?  No, it's not a feature or bug.......   It's your weather settings combined with not being at the controls for 8 hours

Linking such sim behaviour to the tragedy of MH370 is pretty tasteless in my opinion.

 

 

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Linking such sim behaviour to the tragedy of MH370 is pretty tasteless in my opinion.

 

 

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Such sim behaviour? It was just a coincidence, stop crying, what happened was tragic but I think it was pretty insane that I ended up exactly right where MH370 had ended its journey.

 

 

as for the autopilot it has never happened to me before and ive flown countless of hours both with and without being at the controls.

 

Back on topic: Why did this happen? LNAV/VNAV was active and it was still cruising but miles off course, no sim acceleration was used at all.

Wow you people are really friendly. OP, I think it's related to FSX weather. I wish I could be more of a help, but this has happened to me.

 

I think it happens mostly in Asia (in FSX) if you're flying west-to-east.

Must definitely be linked to weather. It hadn't happened to me on Asia or anywhere but I'd recommend looking in your fsuipc if you have it as options to help limit the s turns.

Is this a known "feature" / bug?

 

 

What weather engine are you using? FSX, ActiveSkyNext, Rex, OpusFSX, or something else?

Straight from Tabs' Found\Fixed\Working On thread: Fixed a rare issue in LNAV calculation that could cause the aircraft to become unstable on a route leg that lies along a north-south longitudinal meridian.

 

 

Such sim behaviour? It was just a coincidence, stop crying, what happened was tragic but I think it was pretty insane that I ended up exactly right where MH370 had ended its journey.

I'm not crying about anything, Morph whatever your name is. I was commenting on your lack of good taste. Anyway, there was no "insane" coincidence. MH370 was real life, your simulator flight was not.

 

 

Wow you people are really friendly.

So you think it should have gone without comment? I wasn't being unfriendly, just being honest. Neither of you are following posting rules either, come to that.

Straight from Tabs' Found\Fixed\Working On thread: Fixed a rare issue in LNAV calculation that could cause the aircraft to become unstable on a route leg that lies along a north-south longitudinal meridian.

I read on this forum that is to do with flying in the polar region.

What weather engine are you using? FSX, ActiveSkyNext, Rex, OpusFSX, or something else?

It is not weather related. I have posted about this before. It is random, only happens going west from Oceania and some parts of Asia.

I have tested with ASN off, using the same FP.  So it is not weather related.

Must definitely be linked to weather. It hadn't happened to me on Asia or anywhere but I'd recommend looking in your fsuipc if you have it as options to help limit the s turns.

If using ASN, don't touch FSUIPC. As I posted above, it is not weather related "S" turn.

 

As to the OP, he never said what weather engine he was using, and as he went south it could be an "S" turn. The east west bug, the plane always turns to the north, in my experience anyway. Out of 50 flights, it has only happened twice.

Morph you have to sign your first and last name in your signature box as per forum rules or you are likely to be ignored.

I'm using OPUS. Thanks for all the replies, I know from other addons that weather might put the autopilot into severe S-turns, however it would still stay on course (just banking left and right). When I looked at my flight route it had made a very sharp turn south (not according to flightplan) and then kept doing the "S" thing for hours.

 

I'm not crying about anything, Morph whatever your name is. I was commenting on your lack of good taste. Anyway, there was no "insane" coincidence. MH370 was real life, your simulator flight was not.

 

 

So you think it should have gone without comment? I wasn't being unfriendly, just being honest. Neither of you are following posting rules either, come to that.

 

I've read a lot about the accident, i've even tried to help them find wreckage by looking through more than 5k satellite image tiles, and just as the AF447 incident I am very interested in trying to understand what actually happened that day. Then suddenly when I fly my PMDG 777 (which has worked perfectly fine for the countless hours I've flown it), and out of nowhere it decides to put me on almost exactly the same flight path as the accident aircraft, doing weird S turns all the way. I think that is an extremely rare coincidence. Now enough of that, this topic is not about my "lack of good taste" or MH370, its about the T7 in FSX.

I wish people would leave the investigators to do their jobs. In case people have forgotten, nearly 300 people lost their lives, and nearly 300 families destroyed by the disaster. Until the CVR/FDR are recovered, and assuming they contain uiseful data, people are guessing. Period.

 

As for what you saw in the sim - it's your screw-up for leaving it flying so long with failures enabled. I've flown around the world in the 777 without incident. The AP must have been engaged for it to be flying as depicted in your map.

 

Fixed a rare issue in LNAV calculation that could cause the aircraft to become unstable on a route leg that lies along a north-south longitudinal meridian

 

This problem is irrelevent to what was seen. The routing was east/west, not north/south, and not along the longitudinal meridian.

 

Best regards,

Robin.

 

 

This problem is irrelevent to what was seen. The routing was east/west, not north/south, and not along the longitudinal meridian.

Thanks Robin. Cannot agree more.

in FSUIPC in weather tab disable turbulence something.. i really dont know whats full name of that. Common issue with opus or fsgrw