Hi All, After finally getting used to AS2K4, I have a question regarding the forecast winds at different altitudes. How are these wind directions and speeds to be interpreted? Will they update themselves as you progress along on a long flight or are they fixed from the time the interpolation is made? I have on several flights, of varying length, and I have never seen that these predictions of winds and altitudes macth up (even by a margin). Most often, the predicted wind speeds are more or less ok, but the wind direction is never. It differs by more than 100 degrees most times. Am I doing anything wrong?Thanks in advancePittsburgh

Hi there,More than 100 degrees off most of the time? Something is wrong... I've never seen or heard of such discrepencies. Occasionally the well known FS9 wind bug will cause variations in the range of 180 degrees off but not "most of the time". In our findings, this error occurs only briefly and eventually FS9 actually reverts back to the correct 'set' direction. During specific consistency testing we noted directional accuracy greater than 90% on average.Since this is happening all the time for you, perhaps it has something to do with the area you are flying in? Are you also remembering to convert from True to Magnetic? Aloft reports are given TRUE, FS9 Shift-Z will report MAGNETIC. Can vary from just a bit to 30 deg depending on which area you are flying in.Let us know the details, and screenshots or clips of the aloft string data along with actual FS9 winds shown would help us compare... Thanks!-Damian

Hi Damian, Thanks for the reply... I will have a look at it next time I fly. I usually fly in and out of Copenhagen (EKCH), and most of my test flights go to EGLL (as it is a route I can remember by heart :-)). I will do screenies and dumps next time I notice something peculiar.Thanks,