Hi, In my case ASE SP3 (with and also without Beta 649) causes the following problem: Very often and over longer times wind direction and speed do change permanently by one or two degrees / one or two knots.These changes occure up to three times per second and they do significantly irritate the PMDG 737 NGX autopilot. Do you have any ideas on the reason for this annoying weather behaviour? Further specs: - DWC enabled- Turbulence influence to aircraft set to "Off" in FSX"- VATSIM weather- No registered FSUIPC If necessary I can post or send the respective ASE & FSX cfg-files.

Hi Stefan, "Very often and over longer times wind direction and speed do change permanently by one or two degrees / one or two knots.These changes occure up to three times per second and they do significantly irritate the PMDG 737 NGX autopilot." This appears to be DWC operating correctly. The first observation is "smoothing" in effect.... The second is DWC "fighting" FSX to try and depict the correct values instead of the invalid values. Standard/default and most aircraft do not exhibit problems, we only know of certain add-on aircraft causing "s-turns" including the PMDG 737. Did you follow the suggestions in the readme.rtf to reduce turbulence effects? It involves more than just disabling turbulence in FSX UI. Please try all the suggestions there, as it has solve the problem for many users. Does this help?

Hi Damian, it seems that I solved it now, unfortunately this is only possible with a registered copy of FSUIPC So here for all now the whole story: Initial situation on Sunday:

• Purchase of ASE
• Installed with defaults plus VATSIM weather
• FSX with PMDG B737NGX
• 2 Problems:- S-Turns - Permanent wind direction and -speed changes (on the 737 the IAS tape permanently jumps 20 knots up and down, stable flight not possible)

First attempt to solve it (Monday afternoon):

• Entered the FSX.cfg turbulence value as recommended (TurbulenceScale=0.500000)
• Disabled turbulence effects on aircraft in FSX settings as recommended
• Result: No more S-turns , permanent wind direction and speed changes do still occure

Second attempt to solve it (Monday late evening):

• Purchase of registered FSUIPC copy
• Applied the following settings, all on the "Winds" tab, section "Wind Smoothing":- "Smooth wind changes near aircraft" - limited to two knots or degrees per second- "Smooth only when airborne"- "Suppress these wind effects" - turbulence, gusts, variance
• Result: The permanent wind direction and speed changes do no longer occure

Further tests today in the morning after your reply:

• FSUIPC.cfg settings as recommended in ASE's readme.rtf
• All the above mentioned FSUIPC settings on "Wind Smoothing" removed
• Result: Again permanent wind direction and speed changes

• FSUIPC: Re-enabled "Smooth wind changes near aircraft" - limited to two knots or degrees per second
• Result: Permanent wind direction and speed changes slightly reduced

• FSUIPC: Re-enabled "Suppress these wind effects" - turbulence (only!!!)
• Result: The permanent wind direction and speed changes do no longer occure

Summary (for the moment): Without having a registered copy of FSUIPC and setting it to "Suppress these wind effects" - "turbulence" it is not possible to get a proper flight behaviour when using highly detailed aircraft and ASE in DWC mode.

Hi Stefan,We appreciate your feedback and findings... We are not aware of a need to have the registered version of FSUIPC installed in order to prevent problems with such aircraft, but we will look into this. We have some testing and focused investigation scheduled next week for the 737 NGX + ASE combo. Could you elaborate on "permanent wind direction and speed changes" ? It is normal for smoothing (from ASE and potentially FSUIPC) to provide "permanent change" i.e. if the direction is moving from westerly to northerly, it will slowly move around 2deg/kts per second to the new values, and will stay there until it is supposed to move to "new" target values. But an 'instant shift' of 20 degrees or more indicates something wrong, perhaps with the simconnect communications throughput. If you could describe this behavior a little more it would be appreciated. Thanks Stefan!

Hi Damian, the mentioned permanent wind direction and speed changes did occure as follows: At certain points during the flight (but over all during more than 50 % of an one hour flight) the wind direction and speed permanently changed by one up to three degrees / knots and back. This happend between one and up to three times per second.In these situations also the IAS tape was jumping up and down by up to 30 knots, again up to three times per second.

Disregard

Hello, I'm experiencing the same problem. With FSX turbulence effects enabled, the wind changes were a bit smoother, but the heavy, almost 90 deg. S-turns occured (I had turbulence scale set to a small value in FSX.cfg, like 0.2, maybe this caused the uncontrolled S-turns). With the FSX turbulence disabled, the plane flies straight, but the frequent wind changes cause the airspeed and wind indicator fluctuations. Sometimes the wind changes are strong enough to be felt as jerky movement. This happens with all planes, not only with PMDG, but I recorded video from PMDG MD-11: http://dl.dropbox.co...15-20-42-00.wmv As you can see, not only plane displays, but also FSX data (Shift+Z) show airspeed and wind fluctuations.

Hi, Thanks to Mike for the video! The behaviour shown there is exactly what I meant.

Hi again, Thanks for the video. That shows a normal behavior of DWC when FSX is trying to depict the wrong (usually 180 off) direction in winds. We don't know of any way to prevent FSX from doing this, DWC is thus something to provide the solution to consistent correct winds, and we realize it causes certain issues with some aircraft, in which turbulence effects can be minimized or even disabled to solve the problem (as Stefan's results indicate). We have documented that this occurs much more frequently in certain areas, with the worst area in northern Europe. You can use a different depiction mode, but then your winds will shift and not be the correct direction (i.e. in this case, the winds would be approx 180 degrees off of expected).

I have the same behavoir with the Level-D 767, luckyly withuot S turns... but it's quite annoying to have "OVERSPEED" message twice a second for the wind speed and direction changes...

Can you post or give your option settings for ASE?

ok, I'll give you them as soo as possible, today I do not have time ;-)