I fly the 737ngx with ASE at a cost index of 80. Was curious as to why my flight times don't match up on flightaware. For example, the other day I flew from KDTW to KTPA using the exact weather at the time of the flight. The real flight arrived 20 minutes early. I arrived 20 minutes late. Probably just has to do with winds aloft

Are you using DWC depiction mode? This would be important when expecting realistic wind aloft depiction.

Yes I am using that mode

Ok, thanks for confirming.In that case, I don't have enough information to know why there is a difference. I can confirm there are no known issues at this time with winds aloft or server data being inaccurate, in fact we just did some very extensive testing to track down a non-issue (user misunderstanding) on this and we were happy to find things working wonderfully and very accurately in all phases of the test scenario.Actually, there is one possibility that makes sense.... we do have a known FSUIPC issue that cropped up recently, which causes winds to "stick" at improper values, either permanently or temporarily, and it could certainly effect your results. If this is related, you can expect an FSUIPC fix very soon (from Peter Dowson's forums), and we will post information on its availability when its online. If you have FSUIPC registered, enabling FSUIPC wind smoothing eliminates the problem.Other than that, I suppose there are many things that can affect the difference between a real and simulated flight, even if the winds were experienced the same.If you find any inconsistencies between real forecasted wind data and ours, we will certainly look into it. At this time we have no indications of problems and as mentioned we just spent a decent amount of time verifying this within the past 3 days.

Okay, that might be the problem. I'll enable wind smoothing on fsuipc. Thanks for all the help as usual.

Ok, thanks for confirming.In that case, I don't have enough information to know why there is a difference. I can confirm there are no known issues at this time with winds aloft or server data being inaccurate, in fact we just did some very extensive testing to track down a non-issue (user misunderstanding) on this and we were happy to find things working wonderfully and very accurately in all phases of the test scenario.Actually, there is one possibility that makes sense.... we do have a known FSUIPC issue that cropped up recently, which causes winds to "stick" at improper values, either permanently or temporarily, and it could certainly effect your results. If this is related, you can expect an FSUIPC fix very soon (from Peter Dowson's forums), and we will post information on its availability when its online. If you have FSUIPC registered, enabling FSUIPC wind smoothing eliminates the problem.Other than that, I suppose there are many things that can affect the difference between a real and simulated flight, even if the winds were experienced the same.If you find any inconsistencies between real forecasted wind data and ours, we will certainly look into it. At this time we have no indications of problems and as mentioned we just spent a decent amount of time verifying this within the past 3 days.

I can confirm the winds aloft are very accurate. I just did a months virtual trip around the world and almost all my flight times were less than 5 minutes deviation (The nerd in me wants to go and calculate the mean and SD for the trip :-P) for the flight plans I computed for the trips. Some were computed up to 18 hours ahead of time using forcast winds. Fuel burn was also very close with the Eaglesoft Citation X. I have access to a major commerical flight planning system, so ASE was in line with the predictions in the flight plans I computed. The only thing I wish for is higher resolution over the oceans, but it sounds like AS2012 has this. :)