March 7, 200917 yr What is causing this: PMDG-MD11X and PMDG-747X excessive heading off-track and 35 degrees bank angle.MD-11 and 747X cannot maintain AP engage Nav track or heading during the various cross winds and wind speed changes. a-I didn't have this problem with PMDG-747in FS9.b-I wonder if there is Nav/HG sensitivity numbers in MD-11 and 747 cofig.files needs to be adjust.c-Only thing I checked in FSUIPC wind smoothing 1and 0. Sanal Ahmet Sanal "Time you enjoyed wasting, was not wasted"
March 7, 200917 yr I've found the 747 and the MD-11 to be extremely sensitive to wind speed/direction changes in FSX. Try FSUIP wind smoothing with 3 seconds per knot / degree change, this value works fine for me.Tom Tom Risager NGX tutorial: http://library.avsim.net/sendfile.php?Location=AVSIM&Proto=ftp&DLID=162360 SIDs & STARs Worked Examples: LOWI-UUDD, KSEA-KLAX, EKCH-ENGM, YSCB-YPAD
March 8, 200917 yr Tom is right. I use 8 sec per kt/deg and some use 10 seconds. Believe me, the real world winds aloft don't change direction quickly... imagine a mass of air miles deep and a hundred miles long moving along way above the localized ground effects and thermals and you can appreciate the inertia. Take a look at the 500mb or 300mb charts and those steamlines are pretty accurate. Too bad MSFS didn't try to make a wx engine for jet levels, they built this darn thing for the C172 IMHO. Dan Downs KCRP
March 8, 200917 yr Author Tom is right. I use 8 sec per kt/deg and some use 10 seconds. Believe me, the real world winds aloft don't change direction quickly... imagine a mass of air miles deep and a hundred miles long moving along way above the localized ground effects and thermals and you can appreciate the inertia. Take a look at the 500mb or 300mb charts and those steamlines are pretty accurate. Too bad MSFS didn't try to make a wx engine for jet levels, they built this darn thing for the C172 IMHO. Is this OK?ThanksSanal Ahmet Sanal "Time you enjoyed wasting, was not wasted"
March 8, 200917 yr That's how mine is set up (except I use three seconds), so that should work fine.Tom Tom Risager NGX tutorial: http://library.avsim.net/sendfile.php?Location=AVSIM&Proto=ftp&DLID=162360 SIDs & STARs Worked Examples: LOWI-UUDD, KSEA-KLAX, EKCH-ENGM, YSCB-YPAD
March 8, 200917 yr I also use it to smooth temp/press by selecting those features. I think they are on the misc tab... I use half the default rate of change. Dan Downs KCRP
March 14, 200917 yr Author I also use it to smooth temp/press by selecting those features. I think they are on the misc tab... I use half the default rate of change. MD-11 X now better then before.Today,I was flying with 747X, wind was from 240/90-101 over Buffalo,NY. There is no way A/P can control the plane. It was banking 35/40 :( degree and away from track line. Circling almost 180. I have to stop the flight.Now I will use 3 sec per kt/deg in FSUIP. I will inform. Ahmet Sanal "Time you enjoyed wasting, was not wasted"
March 15, 200917 yr Author MD-11 X now better then before.Today,I was flying with 747X, wind was from 240/90-101 over Buffalo,NY. There is no way A/P can control the plane. It was banking 35/40 :( degree and away from track line. Circling almost 180. I have to stop the flight.Now I will use 3 sec per kt/deg in FSUIP. I will inform.Good news.. Finally I eliminated all kind wind shift problems . Now, PMDG-MD11X/ 747X are flying perfect with out any wind impacts.It is interesting using 3 sec ( or any numbers)per kt/deg in FSUIP is not correcting the wind impact problems on the MD-11x/747X. But if you make an additional checks on PSUIPC then you will succeed:Please see below my setting on FSUIPC. You can use any two combinations , which ever one best for you..Sanal Ahmet Sanal "Time you enjoyed wasting, was not wasted"
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