Hi,

 

I'm not sure if there is something more I can do to try to get rid of the sudden wind shifts. I've set FSUIPC for wind smoothing 1 knot per sec but it seems to have no effect. Is there anything else to try or is this problem the same as the weather smoothing problem that many post about that is being worked on? No regrets with this purchase; the sense of speed through the clouds and IFR conditions have brought new excitement for this sim.

 

Thanks,

Matt

Hi Matt

 

Are you using the latest beta 2.40? The latest Live Weather pdf (available from our website) describes the new wind smoothing options. We currently don't recommend using FSUIPC for wind smoothing.

 

Regards

Cheryl

Installed the beta and did not experience any violent wind shifts or over speed conditions at FL 340 and below. Great work.

Thanks,Matt

Hi Matt

 

We have posted beta version 2.40.2 today with some more minor changes to come tomorrow in 2.40.3.

 

Please also check our Flight1 topic on Wind Stabilisation and Recovery, we have some really nice recovery procedures being introduced. For others to copy no doubt.

 

Regards

Stephen

if the FSUIPC smoothing isn't enough you should try the 2nd option in the FSUIPC wind smoothing setup. Instead of allowing x deg/kt per sec you just say how many seconds for 1deg or knot. It's the checkbox just below the one you use currently. I was used to do it that way before I got any external weather engine and the smoothing was very well adjustable.

 

Regards

Hirschi

Tried them both and they just don't stop wind shifts at all, I believe they are meant to be combined with global weather. Stick with 2.40.2 and its wind stabilisation and recovery, with improved recovery in the pipe line (available in a matter of days), with even a forced recovery of true surface winds.

 

But try the options if you think they will help, they might hinder the recovery procedures though.

 

Regards

Stephen

Hi guys,

 

I have enabled wind smooth and still getting large wind shifts that cause the md11 to disconnect fms speed,

 

Alex

 

 

EDIT

 

The problem lies with how OPUS imports weather [either manually updating or automatic]. When this happens for me, I get a surge in winds and a different direction for a split second, before returning to normal.

 

This is enough to disrupt the autopilot.

If you are using GRIB then try GRIB friendly, or if that fails Stabilised GRIB.

 

The possibility of wind shifts cannot entirely be ruled out, this is due to bugs in the FSX/P3D code, that's why you should always disable the 'Aircraft stress causes damage' FSX option.

 

If you are flying with the sim rate speeded up, especially above x2 then it is possible to get wind shifts. Certain aircraft sims are more susceptible to wind shifts.

 

If FSX is struggling to cope due to the number of add-on packages, detailed scenery, high defintion high resolution cloud textures (we recommend non HD low resolution textures) etc then wind shifts are more likely.

 

Have you tried our recommended settings to overcome wind shifts ...

 

Always specify your destination ICAO, this is very important in preventing wind shifts.

 

If you are flying low level (below 20,000 feet) then tick the Disable Update on Approach checkbox. On approach, all weather updates will be disabled for Disable Weather Update For minutes (default 10 minutes) on the final descent as soon as you descend through Disable Update when Below AGL (default 1800 feet AGL). This process is cancelled whenever you climb above Assume Cruising when Above AGL (default 2000 feet AGL).

The Max Sped Change option allows you to fine tune the surface wind smoothing by specifying the maximum allowed wind speed change every 32km. You can also specify the Max Direction Change. The default values are 30 for speed and direction change.

If you do want to adhere strictly to the METARs (with a risk of wind shifts) then set the Forced Recovery altitude (see below).

A Forced Recovery altitude (default 8000 feet) allows full recovery of the reported surface winds during the final descent. The full recovery may cause a wind shift at the configured altitude, if this is not acceptable then set the altitude to 0 feet to disable it.

 

If you are flying high level (above 20,000 feet) select the Enable Wind Stabilisation option, ideally select this on the ground before a flight not during flight.

The Recovery Altitude is where the winds will attempt to recover eventually to the true surface wind, default 19,000 feet. A lower setting is advised for those experiencing very serious wind shift problems. It will allow the stabilised winds to be maintained to a much lower altitude, probably at the expense of being able to recover the current surface winds reported in the latest METARs. Wind stabilisation is enabled automatically if the user climbs above the Recovery Altitude plus 500 feet.

The maximum permitted wind direction change, Max Wind Change, can be specified (default 30 degrees change). If you do want to adhere strictly to the METARs (with a risk of wind shifts) then set the Forced Recovery altitude (see below).

A Forced Recovery altitude (default 8000 feet) allows full recovery of the reported surface winds after wind stabilisation and during the final descent from 19,000 feet. The full recovery may cause a wind shift at the configured altitude, if this is not acceptable then set the altitude to 0 feet to disable it.

If you are using GRIB data for winds/temps aloft then Sim Friendly GRIB Wind Targets should be enabled along with the Wind Stabilisation option in the Wind Smoothing dialog. The Sim Friendly GRIB Wind Targets option causes the LWE to adjust any 'sim unfriendly' wind changes in direction and speed.

The Stabilised GRIB Data option goes a step further for systems experiencing wind shifts in the cruise, and makes the GRIB forecast data static, i.e. no further GRIB upper wind/temperature forecasts are downloaded during the flight.

 

 

Regards

Cheryl

If you are using GRIB then try GRIB friendly, or if that fails Stabilised GRIB.

 

The possibility of wind shifts cannot entirely be ruled out, this is due to bugs in the FSX/P3D code, that's why you should always disable the 'Aircraft stress causes damage' FSX option.

 

If you are flying with the sim rate speeded up, especially above x2 then it is possible to get wind shifts. Certain aircraft sims are more susceptible to wind shifts.

 

If FSX is struggling to cope due to the number of add-on packages, detailed scenery, high defintion high resolution cloud textures (we recommend non HD low resolution textures) etc then wind shifts are more likely.

 

Have you tried our recommended settings to overcome wind shifts ...

 

Always specify your destination ICAO, this is very important in preventing wind shifts.

 

If you are flying low level (below 20,000 feet) then tick the Disable Update on Approach checkbox. On approach, all weather updates will be disabled for Disable Weather Update For minutes (default 10 minutes) on the final descent as soon as you descend through Disable Update when Below AGL (default 1800 feet AGL). This process is cancelled whenever you climb above Assume Cruising when Above AGL (default 2000 feet AGL).

The Max Sped Change option allows you to fine tune the surface wind smoothing by specifying the maximum allowed wind speed change every 32km. You can also specify the Max Direction Change. The default values are 30 for speed and direction change.

If you do want to adhere strictly to the METARs (with a risk of wind shifts) then set the Forced Recovery altitude (see below).

A Forced Recovery altitude (default 8000 feet) allows full recovery of the reported surface winds during the final descent. The full recovery may cause a wind shift at the configured altitude, if this is not acceptable then set the altitude to 0 feet to disable it.

 

If you are flying high level (above 20,000 feet) select the Enable Wind Stabilisation option, ideally select this on the ground before a flight not during flight.

The Recovery Altitude is where the winds will attempt to recover eventually to the true surface wind, default 19,000 feet. A lower setting is advised for those experiencing very serious wind shift problems. It will allow the stabilised winds to be maintained to a much lower altitude, probably at the expense of being able to recover the current surface winds reported in the latest METARs. Wind stabilisation is enabled automatically if the user climbs above the Recovery Altitude plus 500 feet.

The maximum permitted wind direction change, Max Wind Change, can be specified (default 30 degrees change). If you do want to adhere strictly to the METARs (with a risk of wind shifts) then set the Forced Recovery altitude (see below).

A Forced Recovery altitude (default 8000 feet) allows full recovery of the reported surface winds after wind stabilisation and during the final descent from 19,000 feet. The full recovery may cause a wind shift at the configured altitude, if this is not acceptable then set the altitude to 0 feet to disable it.

If you are using GRIB data for winds/temps aloft then Sim Friendly GRIB Wind Targets should be enabled along with the Wind Stabilisation option in the Wind Smoothing dialog. The Sim Friendly GRIB Wind Targets option causes the LWE to adjust any 'sim unfriendly' wind changes in direction and speed.

The Stabilised GRIB Data option goes a step further for systems experiencing wind shifts in the cruise, and makes the GRIB forecast data static, i.e. no further GRIB upper wind/temperature forecasts are downloaded during the flight.

 

 

Regards

Cheryl

 

Hi Cheryl,

 

In all fairness I did change this option mid flight, after getting this issue, so I cannot check right now/.

 

I have done all the above in the first half of your message, no accelerated simulation rate [ever]. Etc.

 

I get the massive jump when the weather loads in, it is only for a split second and it is enough to disrupt everything.

 

I will keep on testing, I would be very disappointed if I had to not fly with OpusFSX because of this :(

 

Alex

Hi Alex

 

If you changed a GRIB option mid flight then it would probably cause a problem. If you still experience wind shifts then try the stabilised GRIB. Let me know how you get on.

 

Regards

Cheryl