GrahamBu

That's my guess. Cat's been out of the bag a while...

If you are flying within the US, Southern Canada, Mexico, parts of Central America and the Caribbean, then I highly recommend using signing up for fltplan.com. They have a Turbine Duke profile. I don't know how accurate it is, but my experience with the Eaglesoft Citation X and fltplan.com along with ASE weather is flight times usually within a couple of minutes and burn within 100 lbs!

AS6.x only shows upper data for up to 39000'. I found that after that the winds would just become less, and the temperature would lapse at the ISA rate, so any match with my flightplans was mere coincidence. With ASE it pretty much always matches within reason--obviously it wouldn't be realistic if it was bang on, some variance is nice! Here is a flight I did yesterday in the upper levels, flightplan wind (Navtech) and temperature on the left, actual ASE value on right:F410 270/25 M62 : 262/30 M62F450 260/37 M64 : 260/34 M63F450 250/34 M67 : 258/32 M64F450 250/33 M68 : 241/40 M67

I was perfectly happy with the old version of AS (V6 actually, not even 6.5 lol). However, I started flying Eaglesoft's Citation X which means I am almost always flying above FL410. I switched to ASE because it has data available up to 490, and it is usually quite accurate and matches computer flight planning software that I have access to. So, switching really depends on your needs. I care more about accurate aloft data for temperature and winds, not eye candy clouds. I do find that ASE has a bigger hit on performance, especially when downloading new data, but this is to be expected on this 7 year-old PC which will be history soon, yay!

I think the problem rests with a manual observer adding to the data from the weather station. Here are the last three hours from Fltplan.com (I think these are pulled from the US weather service) which match what ASE is downloading:MSSS 042355Z 18008KT 9999 FEW020 26/24 Q1013.8 A29.94 HZ MODMSSS 042250Z 18013KT 9999 FEW023 28/24 Q10142 A2995 HZ MODMSSS 042150Z 18012KT 9999 FEW030 30/24 Q1014 A2995 HZYWhereas, Universal Weather has METARs which I think are unedited and straight from the automated weather station. The 2355Z is messed up in both:METAR MSSS 042355Z 18008KT 9999 FEW020 26/24 Q1013/8 A29/94 HZ MOD=METAR MSSS 042250Z 18013KT 9999 FEW023 28/24 Q1014 A2995 HZ=METAR MSSS 042150Z 18012KT 9999 FEW030 30/24 Q1014 A2995 HZY=I wish El Salvador would just stick to the proper ICAO format as it would be less irritating for all. :-p

I'm not sure where ASE got the METAR with Q10154, as I have a source with universal weather and they report the 1950 MSSS meter as:METAR MSSS 041950Z 19005KT 9999 FEW027 33/21 Q1015 A2998 HZY=

Hi,OK, so I'm enroute right now over El Salvador when my altimeter starting winding down like mad. Looks like station MSSS is causing the problem:MSSS 1950 19005KT 9999 F027 33/21 Q10154 A2998 HZObivously a mistake in the reported QNH. Is there any way in a future version that erroneous values such as this can be ignored so they don't cause havoc. Things seem to be setting down now, but I've been attitude flying the last 100 miles with various swings of the the altimeter, etc.Edit BTW this is B647 of ASE. Now another one is causing problems MHAM with an interpolated QNH of 1181 mb!!!

Hi Jim,I was on the secondary server today by the looks of it. Cheers

I'm currently flying CYVR-KOAK and the interpolation bug has cropped up again. Winds were correct over CYYJ with wind out of the northeast. Now ASE has latched on to an interpolated station with winds out of the southwest, when they should be out of the northeast! So now I'm stuck with a 70 knot headind where I should have a 70 knot tailwind! Very frustrating...

I believe it only shows itself when winds are northerly with some stations reporting something like 020 and another 340, etc. I saw the behaviour again today in an area with northerly winds. My route Oakland to Jackson Hole--the western US is currently a good place to look for this problem as the winds are predominantly northerly right now, and are forecast to be that way for at least the next 48 hours.

I just shutdown ASE because of this error and switched to my old AS6 version. Winds aloft in NorCal and SoCal are out of the north at all levels today; however, an interpolated station just outside KMRY led to the ASE winds becoming southerly at all levels except for the layers above 34000. This bug is very annoying, I had it occur another time in the Seattle area and every time an interpolated station came into play, the winds would start changing by 180 degrees--and it happened many times as it switched to "real" stations. If I remember correctly, once again the winds were supposed to be out of the north, but interpolated stations would have southerly winds. This problem, at least in my case, always seems to come in to play with northerly winds. I really hope this can be fixed as it detracts from ASE for me.Best,Graham