HiI am trying to increase the accuracy of the PMDG 737 FMC descent profile by applying forecast winds in the FMC Descent page. I'm not sure where to get the most accurate forecast winds that FS2004 will use, at two or three different altitudes on the descent. I do create a flight plan within ASE but if the flight takes say 3 hours will the flight plan forecast winds still be the same as when I created the flight plan.Does anyone have any advice of this subject please - I am currently using ASE (latest build).Glen

Hi,Just re-process the flight plan in ASE and then you can read the data o enter it into the FMC.