I have done a lot of Internet searching and cannot find how it was resolved but recall a lot of people had this problem.

I posted it above Jim. It was only two weeks ago when someone else had the problem here on this forum, and renaming that file in the fsx root dir fixes it. Just another hangover left over from Aces.

 

 

Btw, 7kts crosswind doesn't seem strong enough to do that to such an aircraft, maybe - but still highly unlikely - to some ultralight aircraft, but definitley not to an airliner.

 

If that is the QW146 in the video, then a 7 knot crossswind is strong enough to do that. And that is why I returned it. It happened often to me on ILS approaches. They acknowledged the bug on their forums but declined to say when it would be fixed.

 

Otherwise, not sure what's going on there.

The most painful is that it alwalys happen when you least expected it, especially when you are about to land after a 5 hrs long flight. Anyway, I have reduced AS wake turbulance to 10% and rename ThermalDescriptions.xml to a bak extension as per Badfinger suggestion. Did a few flights, so far the bug never resurface. Thanks guys for all the solutions. I will keep on doing more flights to test it.

 

The most painful is that it alwalys happen when you least expected it, especially when you are about to land after a 5 hrs long flight. Anyway, I have reduced AS wake turbulance to 10% and rename ThermalDescriptions.xml to a bak extension as per Badfinger suggestion. Did a few flights, so far the bug never resurface. Thanks guys for all the solutions. I will keep on doing more flights to test it.

 

If you are concerned about thermaldescriptions you can turn on the visual thermals and see if any are around the location where you experience the problem.

 

Thermaldescriptions is a sort of autogen thermal.  The file determines the frequency and characteristics of thermals by landclass value. 

 

scott s.

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I used to have that problem on a regular basis and it was always on the same airports and runways. San Francisco was one of them. I tried everything to correct is to no avail. When I replaced my old computer (Core Duo) with my new one (I-7 extreme)I never had it again on the new machine.

I had this problem as i stated in the linked thread above. I followed jim's advice by turninng wak turbelunce off and have never had it since. Of course this was in fs9.

Did 4 flights since I turned wake turbulance to 10%. So far no issue. Thanks.

I just stepped in here and really don't want to read each and every post, but having seen the comment re wake turbulence set at 10% I have to add Active Sky wake turbulence should never be set at more than 10% unless you are desirous of crashing.  The effect is wildly over done.  Even less than 10% might not be a bad idea.  Why Hifi Sim never tweaked the effect to a more realistic level I have no idea.

Interesting, i had this problems a couple of times, some years ago. But for me, it was allways at the same approach/approaches, on different occasions - weather was not the same. For example, i remeber that happened at aerosoft LGAV - only 21L/03R ILS approach. I found somewhere on internet info that can be related to incompatibility of new AIRAC cycle with FSX/FS9 old Naviagation database(Magnetic variation). The updates can be found here: http://www.aero.sors.fr/navaids.html

 

Unfortunately, I can't remember where i saw that explanation, or if that worked for me... But in the last year i never had this problem in fsx, and i didn't disabled wake turbulence or thermals, i don't use FSUIPC smoothing options, i have not disabled turbulence in fsx etc. BTW, i'm using DWC mode in AS2012. It was recomended to use DWC mode and no additional FSUIPC options with PMDG aircrafts and other planes whith advanced flight models. 

 

I have no a idea about reason for this, i just share my experience, it may be helpful for someone

Odd to see that the aircraft ahead of you was told to go around...

 

The phenomenon in the video is most definitely overzealous wake turbulence in the sim. It was because of all this stuff that I turned off that function some time ago and have never looked back since...

 

A

 

 

The phenomenon in the video is most definitely overzealous wake turbulence in the sim

 

Yep, WT at its best (worst??).  Set the WT at 10% or less.  No other way around it.

I just stepped in here and really don't want to read each and every post, but having seen the comment re wake turbulence set at 10% I have to add Active Sky wake turbulence should never be set at more than 10% unless you are desirous of crashing.  The effect is wildly over done.  Even less than 10% might not be a bad idea.  Why Hifi Sim never tweaked the effect to a more realistic level I have no idea.

Yes, I used to set wake turbulance at 50%, and if thats the cause for the sudden banking I would say that the feel of it is nothing like hitting by a wake, it feels more like some invisible guy just take over the control forcefully. haha.

 

Odd to see that the aircraft ahead of you was told to go around...

 

The phenomenon in the video is most definitely overzealous wake turbulence in the sim. It was because of all this stuff that I turned off that function some time ago and have never looked back since...

 

A

That 737 in front was suppose to be 2nd in approach behind me. But I was a little slow and he overshot to the front. And as usual the ATC in FSX ask him to go-around...well if you know FSX ATC you know it is not perfect,FSX ATC can't see if there is any other aircraft in front of that 737, it will just assume I am still in front of that 737.

Yes, I used to set wake turbulance at 50%, and if thats the cause for the sudden banking I would say that the feel of it is nothing like hitting by a wake, it feels more like some invisible guy just take over the control forcefully. haha.

 

I recall the first time I experience that. Screamed #####!!!!!1  That's not going to happen again. You can generally recover in a smaller aircraft but not in a liner!

 

 

I would say that the feel of it is nothing like hitting by a wake, it feels more like some invisible guy just take over the control forcefully. haha.

 

It's bad enough that he takes over the controls, but I wish the fool would learn to fly!!  LOL

I recall the first time I experience that. Screamed #####!!!!!1  That's not going to happen again. You can generally recover in a smaller aircraft but not in a liner!

In the video I posted up there, just after I regain control and apply full throttle, I bank to the right with my full body weight at 01:03 you can see that my right gear actually hit the ground..lol. Phew! I thought I am gona die.