I was descending to UTTT and weather was clear, all of a sudden the plane banked violently more than 40 degrees, disconnected AP took control and continued approach. 7 miles from the runway it happened again with no obvious reason.

Its like the plane was slapped and its all over the place although sky was clear, could a thermal do this? My thermal settings in FSX is natural or this is some weird AS16 behavior.

really out me off after many hours of flying, i was in a PMDG777

anyone else experienced such a thing before?

thanks 

Were there any AI aircraft in the vicinity? It sounds like the wake turbulence effect, which is much too strong in AS16. In the setup menu for AS, there should be a slider to adjust the strength of the wake turbulence emulation. I believe it defaults to 100 percent. Suggest setting that slider no higher than 30 percent, or turn it off entirely.

I experienced wake turbulence in real life as a passenger in an Air Alpes Dornier 328 shortly after take-off from Amsterdam quite a few years ago. We must have been climbing through about 4000ft when the aircraft suddenly rolled at least 60 degrees (if not more, as I was sitting in a window seat and suddenly seemed to be looking almost straight down at the ground!) to the right before rolling back to the horizontal again fairly quickly. I'm not normally a scared flyer and even quite bad turbulence does not bother me as a rule but this was quite alarming in the severity and speed of the roll. A couple of years later the American Airlines A300 disaster occurred when the aircraft lost its vertical fin after an excessively vigorous attempt by the pilot flying to correct a wake turbulence induced roll shortly after take-off from JFK. When I read the report of this disaster, I recalled my Air Alpes incident and remember being quite grateful for the skill of the Air Alpes pilot and the strength of the Dornier!

Yes Jim's suggestion to check and possibly reduce your AS16 wake turbulence is a wise one. I use AS16 and have left the wake turbulence strength setting at 50 which, according to AS16, is the default value but that certainly can produce quite a dramatic effect when it happens.

Bill

1 hour ago, JRBarrett said:

Were there any AI aircraft in the vicinity? It sounds like the wake turbulence effect, which is much too strong in AS16. In the setup menu for AS, there should be a slider to adjust the strength of the wake turbulence emulation. I believe it defaults to 100 percent. Suggest setting that slider no higher than 30 percent, or turn it off entirely.

Hi Jim,

i dont fly with any AI and all is turned down, my AS16 wake turbulence is at default i think of 50. 

3 minutes ago, scianoir said:

I experienced wake turbulence in real life as a passenger in an Air Alpes Dornier 328 shortly after take-off from Amsterdam quite a few years ago. We must have been climbing through about 4000ft when the aircraft suddenly rolled at least 60 degrees (if not more, as I was sitting in a window seat and suddenly seemed to be looking almost straight down at the ground!) to the right before rolling back to the horizontal again fairly quickly. I'm not normally a scared flyer and even quite bad turbulence does not bother me as a rule but this was quite alarming in the severity and speed of the roll. A couple of years later the American Airlines A300 disaster occurred when the aircraft lost its vertical fin after an excessively vigorous attempt by the pilot flying to correct a wake turbulence induced roll shortly after take-off from JFK. When I read the report of this disaster, I recalled my Air Alpes incident and remember being quite grateful for the skill of the Air Alpes pilot and the strength of the Dornier!

Yes Jim's suggestion to check and possibly reduce your AS16 wake turbulence is a wise one. I use AS16 and have left the wake turbulence strength setting at 50 which, according to AS16, is the default value but that certainly can produce quite a dramatic effect when it happens.

Bill

That must have been an exp you wont forget, am glad the pilot was good enough to come out of it.

i dont fly with AI and AS16 WT is default at 50.

could be something else, thanks anyways.

Wind shear??

1 hour ago, charliearon said:

Wind shear??

Default as well

Guys it happened again today approaching HKJK 5 min before landing the plane started going up and down a bit like half cm then suddenly flipped, over speed and plummeted to the ground. Lost 4 hrs of flying.

Wake turbulence setting was 0, all other turb setting tuned down at least 50% of the default values.

Really frustrating and no idea how to address this.

I noticed this happens on approaches only.

Any thoughts?

Thanks

Roshan

On 5/31/2020 at 4:38 PM, charliearon said:

Wind shear??

It happened again today approaching HKJK 5 min before landing the plane started going up and down a bit like half cm then suddenly flipped, over speed and plummeted to the ground. Lost 4 hrs of flying.

Wake turbulence setting was 0, all other turb setting tuned down at least 50% of the default values.

Really frustrating and no idea how to address this.

I noticed this happens on approaches only, always starting with a bit of up movement like the plane is being lifted like a updraft then the roll occurred.

Any ideas what that might be, maybe a setting of some sort.

Thanks.

Roshan