I have been flying the SSTSIM Concorde a lot lately and had several flights betweeen London and New York. Avoiding overspeeds and the aircraft not going up and down like a yoyo is almost impossible due to weather changes after each update. This got me thinking... Could it be that the difference beteween global weather and the pseudo(sp?) stations in ASVE is causing this problem?What I see is wind shifts of over 100 degrees and speeds between 10 and 40 knots. Looking at my flights I see changes of around 4k ft throughout the crossing. This really dont make for an economic flight :)I got registered FSUIPC and usually set wind to 1 degree/knot every 3 seconds to battle the overspeed, but this will cause problem when I reach my destination. The wind wont shift to the proper direction/speed before I land, so I might end up with a bad tailwind on final approach.Another thing thats bothering me is the very abrupt pressure changes wich also contributes to the autopilots problem to maintain speed and altitude. Tried to use the smooth pressure option in FSUIPC, but that dont seem to help much.Finally I have a question about the wind layers and how it affects speed and direction changes. Should it be smoothly changing, or change when I get close to a new layer? Right now it only changes when I get within a couple thousand feet of the above/below layer.Will do some more testing on this and report back.JT

Hi,We'll keep all this in the one thread!Hope this helps,JimActiveSky Sales and Supporthttp://www.hifisim.com/images/asv_dev_team.jpg http://www.hifisim.com/images/asv_proud_supporter.jpg

Hi,Wind direction differences of over 100 degrees between oceanic "pseudo-zones" is possible (depending on the actual data) but not very common. Same with severe changes in speed. Our resolution is approximately 400nm (minimum) in the sparsest areas. I have been testing the SSTSIM and have never had wind changes like this, usually flying EGLL to KJFK and back, everything has been smooth with default ASVE options, online mode, and wx settings off in FSUIPC.I have experienced a random climb of about 4-5000 ft immediately as registered on the altimeter (and subsequent dive by the AP/overspeed) which was confirmed not related to a wind shift, but rather baro pressure problem (investigating this further). FSUIPC baro smooth does not work for FS2004 station-based weather, unfortunately. Pete tried some time ago, but it proved very problematic and was abandoned. Our only hope in smoothing baro pressure at this point would be via constant route-based force similar to the temps force option.Now that we have some time to further explore higher-altitude cruise flight with great add-ons like the SSTSIM we will certainly be trying to improve things over the next few weeks.Thanks for the feedback!Best,

Thank you for the reply Damian.I have no programing knowledge so in my eyes what you have done so far is pretty amazing. The pseudo station for oceanic areas was a relly great move. Maybe increase the number of stations? Dont know how this was made possible, but with more stations I would think the changes would be less between updates.Will be looking forward to any news on this. If you need a Concorde pilot to test let me know ;)Edit: Jim,I will continue any further discussion on the other thread as you suggested.JT

HiI have a related issue and thought id stick it in this post rather than start a new one. Ive started flying Eaglesofts Citation X. I can get it to cruise at FL510 abouy mach .89. Im aware of the problems that can occurr with wind shearing at high altitudes. My citation was either going to overspeed or it was dropping speeds and going below the drag coefficient meaning i need to drop altitude to gain the speed i lose. I dont have Frank Dobsons module full registered for me personally and Im aware that ASV can only smooth the winds so much.Heres the thing, I decided to disable winds aloft, the winds would stay off then about 15 - 30 mins later then I would start getting winds again. So I disabled ASV and put default weather to clear and this time i got no winds.Do you know anything about this?Also is there anyway of just takin a single snapshot of winds aloft and flying with only that snapshot of wind, its the wind shearing that does the damage.Many thanksGA

Hi,When you disable winds aloft, you need to do this "on the ground" or before your flight so that ASVE initializes all station data parameters correctly. If you did this while airborne it would explain why winds returned. Another possibility: do you have aloft predictability or wind drift rates set other than default? If so, this would account for changes (by design).Fly with only one snapshot? Offline mode would do that.. But I fear the problem in this case is not that the winds are changing, but the wind is different amongst stations.The strange thing is, why is FSUIPC failing to smooth the winds and causing these severe shifts? Or is the 5deg/sec smoothing rate just too little?Best,

Hi Damian.To be honest with you 5deg/kt sec is to much for most aircraft in FS. One of the main reasons I went ahead and bought a lisence for FSUIPC was so that I could set the wind parameters. Most of the time I use 1deg/kt per sec. But lately when flying SSTSIM Concorde I had to set it to 3sec per deg/kt to battle the fact that Concorde flies at, or close to, VMO most of the time.I doubt we'll ever be able to fix this problem without a complete rewrite of the autopilot system in FS. Im sure winds can change rapidly up there, and autopilot is able to compensate for it in the real world.I would suggest if its possible, to add option for changing this or lower it to at least 1deg/kt per sec default.JT