Michael 2

I generally have wind smoothing off in ASX when its on in FSUICP. But I tried all combinations. Anyhow, I tried the flight again with a new weather file from start to finish and the problem seems to have gone away, with the wind only deviating once or twice up to maybe 90 degrees of where it ought to be. Previously I was using a saved flight with a new weather file loaded over it and possibly this was causing the problem. So I will try to be consistent in saving a weather file for each flight and making sure I have online updates turned off after I save the weather.

My ASX is up to date. I think I'll have to look into it over a variety of flights. Thanks for your help.

Thanks for the reply Peter. I had left the rate of change at the default of "2". I guess it should have been obvious to me that I can stabilize the winds greatly by changing that setting. ASX shows a weather report for the nearest station including winds aloft and these show the wind direction to be fairly contant as I fly down the California coast, i.e. the wind is not changing from station to station. But in the sim, the wind oscillates through an arc of about 180 degrees, back in forth, more or less constantly. It will stay somewhat still for maybe half a minute and then begin reversing direction again. I am not an airline pilot nor a meteorologist and have little understanding of what the winds aloft generally do, I but I have a strong suspicion this behavior is not intended in the simulation nor realistic. Maybe this is an anomally and I should look at what's going on over a variety of different flights. Anyhow, your reply has given me more insight into what might be going on to cause this behaviour.

I have FSUIPC 4.241 installed and have a question about its function. I am using ASX for my weather and am still having wildly shifting winds aloft. The smoothing does seem to work as the wind speed is fairly constant and the changes in direction are gradual, which eliminates most of the overspeed problems. But the wind direction still rotates back and forth (gradually) through more than 180 degrees over the course of a few minutes. The flight in question is at a constant 37,000 feet. I have the FSUIPC wind smoothing on and suppress variance checked. The wind directions bear no relation to what ASX say I should be seeing. Should FSUIPC be giving me reasonably constant wind directions, or its just the more violent shifts that it smooths out? I feel that I am going to have to turn off winds aloft in ASX, although that hardly seems realistic.