HiFirst, i want to thank you about this great program :)i want to do some training about NDB tracking and bracketing technique, so i want that the wind come from a constant angle and constant speed exemple: i'm tracking inbound an NDB and i want that along all the track, the wind must be coming from 300 with a speed of 30 KT.my problem with ASV 6 that i enter the metar string with all parameters but when airborne i get i variable wind ( direction and speed).How can i correct this?Thanks in advance

Hi,METAR information only specifies surface wind (generally below 3000 feet AGL). Above that, aloft wind data controls upper winds. Such aloft data is not editable via the interface, but you can indeed edit your own weather files manually and specify the desired direction/speed/temp for specific altitude levels.I would recommend saving a weather file then editing via notepad. The aloft data is the last segment of each station data string, and there are 9 altitudes specified: 3K, 6K, 9K, 12K, 18K, 24K, 30K, 34K and 39K. The format is: Direction, Speed, Temp/Direction, Speed, Temp/etc... / separating each altitude level.Here's an example of KLAX's data within a weather file:KLAX::KLAX 160850Z 00000KT 10SM FEW060 14/08 A2991 RMK AO2 SLP125 T01440083 58004::KLAX 160525Z 160606 VRB03KT P6SM SKC FM1400 VRB03KT 4SM BR SKC FM1900 25010KT P6SM SKC FM0400 VRB03KT P6SM SKC::343,019,21.1/035,012,16.0/070,012,12.4/081,005,00.3/351,006,-14.7/005,014,-27.4/002,016,-44.3/358,016,-53.1/315,017,-58.7Each segment (METAR, TAF, ALOFT) is separated by :: so the aloft data is:343,019,21.1/035,012,16.0/070,012,12.4/081,005,00.3/351,006,-14.7/005,014,-27.4/002,016,-44.3/358,016,-53.1/315,017,-58.7At the 3000ft level, wind is shown as 343 (TRUE), 19 knots, and 21.1C temp. If you wanted the wind to come from 300 (TRUE) you simply change 343 to 300. Adjust this accordingly for the altitudes you desire, perhaps cloning the same values across all altitudes for consistency.Hope that helps!Best,

Thanks HIFI55 for reply. Today i'll try this correction :)