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Knightstalker

PMDG 747-400X

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I resently got the PMDG B747-400X and i have one problem. When I am doing a flight it will follow the FMS Flight plan for about 1 1/2 hour then it starts turning left and right off course and will not stop.

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I have the same issue.I also have the banking left and right during the climb to cruise and also in the cruise.Any help on this, pleaseRegardsGerry Scott

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Gerry, usually it is caused by unrealistic wind shifts in MSFS. Only fix is to either clear weather (no weather) or to use registered version of FSUIPC. It has wind/pressure/temp smoothing feature that helps.

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Gerry, usually it is caused by unrealistic wind shifts in MSFS. Only fix is to either clear weather (no weather) or to use registered version of FSUIPC. It has wind/pressure/temp smoothing feature that helps.
Dan,Thankyou for your reply.I managed to sort my problem by runniing the flight1 reg repair as per the info as 1 of the options on the PMDG info page. I'm 4 hours into a flight from KSFO to EGLL and all is good.But thanks again (wouldn't be the same without real weather)CheersGerry Scott

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I recently started getting this problem as well.It's not my weather, I'm using ASA and FSUIPC wind smoothing. I've been flying the PMDG 747 for 8 or so months and have never seen this problem. It's just going in a straight line on LNAV, no problem and suddenly it steers left or right like crazy, to the point where the "bank angle" alert goes off. After fighting it for awhile, it just starts to work again.Very strange.What's this flight1 reg repair, in my years of simming I've never heard of it. :( Jeff Calder

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Hi guys, i am also getting this problem now [never did before] [PMDG 747-400 not tracking or locking onto the FMC and "swaying" side to side]i run the licenced version of FSUIPC and just use FSX real time [updated every 15 min] weather.may someone please help.Also would like to know how Gerry Scott solved it using flight1 reg repair [ like Jeff i havn't heard of it either.] thanks for your time and helpkind regardsAndrew Fletcher

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The problem is ASA Direct wind control (DWC), or I should say it's a combination ASA PMDG problem, as it only occurs with PMDG aircraft, with DWC turned on. Turn off DWC and just use FSUIPC wind smoothing and the problem goes away.Tom

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Thank you Tom for helping out.Could you please help further by explaining to me where and how do i find and adjust the ASA Direct wind control [ or Turn off DWC and just use FSUIPC wind smoothing].i have FSX if that helps.thank you very muchkind regardsAndrew Fletcher

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Thank you Tom for helping out.Could you please help further by explaining to me where and how do i find and adjust the ASA Direct wind control [ or Turn off DWC and just use FSUIPC wind smoothing].i have FSX if that helps.thank you very muchkind regardsAndrew Fletcher
The DWC switch is in the Winds section in the option menu of ASA. You must have a registered copy (payware version) of FSUIPC to use the smoothing optionsTom

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This problem is not related to DWC in ASA, I have ASA but do not use DWC, that's why I bought FSUIPC. I don't like how the ATIS reports are wrong when using DWC.If I have time today I'm going to try a flight using either default weather or REX2.0 weather instead of ASA just to prove this is not an ASA problem. (ASA has it's own share of issues :( )The MD-11 or Level-D 767 doesn't sway from side to side, only the 744 (and 748).There doesn't appear to be any rhyme or reason as to when it starts swaying either, sometimes it's just after takeoff, sometimes its on decent and sometimes it's just randomly in cruise.I suppose I should go to work though, I'm already a couple of hours late... :( Jeff Calder

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This problem is not related to DWC in ASA, I have ASA but do not use DWC, that's why I bought FSUIPC. I don't like how the ATIS reports are wrong when using DWC.If I have time today I'm going to try a flight using either default weather or REX2.0 weather instead of ASA just to prove this is not an ASA problem. (ASA has it's own share of issues :( )The MD-11 or Level-D 767 doesn't sway from side to side, only the 744 (and 748).There doesn't appear to be any rhyme or reason as to when it starts swaying either, sometimes it's just after takeoff, sometimes its on decent and sometimes it's just randomly in cruise.I suppose I should go to work though, I'm already a couple of hours late... :( Jeff Calder
With ASA DWC on, my flight will last about 5 minutes, before the aircraft starts hunting for a heading. Turn it off, and I can fly all the way across the Atlantic with the 744 (or 8) tracking perfectly. I can duplicate this behavior over and over.Tom

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Thanks Tom,I hate to ask a silly question but i have no idea what the DWC or the ACA is and/or how to find it to adjust it or where to adjust it.As you may have noticed i am not very good with computers. thanksAndrew

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ASA stands for Active Sky Advanced, it's an add-on weather program.http://www2.hifisim.com/DWC is "Direct Wind Control", which is a part of the ASA program to attempt to smooth out wind problems in FSX.I realize Tom is having a problem while using DWC and I'm not disputing it. But I believe Andrew and I are having what sounds like a similar problem and it is not related to ASA or DWC, since Andrew doesn't have ASA and his 744 is steering all over the place, as is mine. I do not have DWC enabled in ASA anyway because it messes up the ATIS reports for airports.I haven't flown since yesterday and I'm not sure if I will have a chance to today yet, but if I do I'll keep an eye on it. I don't have any new information to deliver at this point.Jeff Calder

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ASA stands for Active Sky Advanced, it's an add-on weather program.http://www2.hifisim.com/DWC is "Direct Wind Control", which is a part of the ASA program to attempt to smooth out wind problems in FSX.I realize Tom is having a problem while using DWC and I'm not disputing it. But I believe Andrew and I are having what sounds like a similar problem and it is not related to ASA or DWC, since Andrew doesn't have ASA and his 744 is steering all over the place, as is mine. I do not have DWC enabled in ASA anyway because it messes up the ATIS reports for airports.I haven't flown since yesterday and I'm not sure if I will have a chance to today yet, but if I do I'll keep an eye on it. I don't have any new information to deliver at this point.Jeff Calder
There's one other reason for tracking problems, and that is the registry path. It can be corrected by using the flight1 registry fix utility. It's documented in the OPS section.http://ops.precisionmanuals.com/wiki/How_t...Tracking_ErrorsTom.

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Thanks guys, i will also give that a go too.i am in the middle of a long haul at the moment so once i've touched down i will do it then.thankd again.Andrew Fletcher

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Could it be rudder or yaw damper related? Go to external view, is your rudder moving, due to possable rudder pedal issues?

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I need help my plane is doing the slolom thing and its driving me up the wall. The link that was pasted is now gone and doesnt work. Jeff please help me out if you found the solution. THank youRespectfullyMarc

Thank you! I will give that a try!Jeff Calder

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G'day Gents,I too have had this problem from my very first flight in this aircraft, and think it is something PMDG could look into, as it appears to be just this aircraft that is affected especially to this extenct ..... It's something that sends someone much like this ...... :( Cheers 4 Now,Stephen Jones

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Ok - I'll be the dummy. I don't have any add-ons. The link below doesn't work (for me) and I can't find anything like it (don't know what OPS means).http://ops.precision...Tracking_ErrorsMy best hope seems to be the registry fix.
Will be interested to see what you come up with Scott, and I haven't been using any other addons, apart from my fully paid for FSUIPC, and will be trying the settings there shortly after I finish reading up on the Radio workings, based on DMEs, ILSes, etc via the FMC ..... :( As for OPS, I think you'll find that is short for Operations ..... :( Cheers 4 Now,Stephen Jones

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Since that link isn't working here are the instructions by Ryan (Tabs). I was having an issue with the same thing the other day and following these instructions it fixed my problem and it only takes a few minutes to do.With FSX shut down:1. Go to C:\Program Data\Microsoft\FSX - delete the Facilities and SceneryIndexes folders you see there.2. Download the Flight 1 registry repair tool at http://www.flight1.com, right click it and choose Run as Administrator (this is very important, I have seen it fail to fix the issue if it's run with normal user permissions) Select the FSX option and point it to your FSX.exe file.3. Run FSX - it will rebuild the Facility data and Scenery Indexes and you should be set. Once I did this it fixed all my tracking errors.Sean Campbell

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Since that link isn't working here are the instructions by Ryan (Tabs). I was having an issue with the same thing the other day and following these instructions it fixed my problem and it only takes a few minutes to do.
Well, even though I'm flat openning Notepad, B) it would be a wonderfull panacea if I manage not to wreck the Registry ...... :( Been battling another problem all day, trying to get the IRS to set in the FMC ...... I normally don't have a problem with it, but it's got my nose in the bloody manual again ...... Black%20Eye.gif Anyhow I will now do the suggested fix, and it'll be good to watch the wings B) (dancing) in heavy turbulance again ...... :( Just fixed the IRS problem ...... :( Cheers 4 NowStephen Jones

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G'day Again Sean, and all Other Gents following this post ......The link that was apparently found on Wiki, is definitely not working and have done a search on Flight 1's website, and typed in Registry Repair Tool, but drew a blank there as well ....... :( Shall keep hunting around, and might even find Ryan's origonal write-up ...... :( Yet Again, T'is,Cheers 4 Now,Stephen Jones

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