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Guest Glaudrung

Pss and AS2004 (fsuipc)

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Hello everybody,sometime ago I posted a problem of my A321 (and the 319,320,340 as well) diving into the ground when engaging the autopilot.By some chance I had the problem solved but when I tried the 'bus' again earlier this week, I countered the same problem.I think that this problem is caused by Fsuipc.When using AS2004, they insist on using a custom made version (3.317 to be exact)with their latest version of the program. However, this version is causing the 'bus' to dive to the ground when engaging the autopilot. I tried to replace this version of fsuipc with an older one (3.20) and the problem went away. All version after this one, including the official version 3.3 give me the same result... diving!Is there anybody who can confirm my findings or is there something else that is acting weird.I have tried everything else but to no avail.All help is welcome.Luc 'Glaudrung' Brusselmans

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Good evening John,Thanks for the reply .I have, only minutes ago, tried three flights. One with version 2.22 of fsuipc, one with version 3.30 and one with version 3.317 (as supplied by the beta version of the latest AS2004).In case of the last two, The result was as stated in my original posting, a straight dive to the ground. Only with version 2.22 I could engage the autopilot normally.There is no difference bteween the three flights except the version of Fsuipc. Same weather, same flightplan, same weight and fuel, same pilot...;).I had this problem before but, after installing the busses again (with fsuipc 3.2 I guess), the problem went away but now, with the new AS2004-versions, I encountered this problem again.The flightcontrols are calibrated properly and don't cause problems with other aircraft.I have posted this problem in other forums to(AS2004 and P. Dowson's) in the hope to get some answers.Luc 'Glaudrung' Brusselmans

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Hello again John,I'v looked up that message and tried the solution mentionned.However, the message is rather unclear whethet to chck or to uncheck the tickbox "Discon Elev Trim Axis for AP".Anyway, both options do not solve my problem.Or, when setting the trim manually it makes the bus rocket up, up and away or diving straight to earth. (always with versions of fsuipc higher than v 3.22)I have flown all busses of pss and got a lot of fun out of it in the past. Just now, the last two months, has been nothing but trouble and I really am sure of it that it has nothing to do with the aircraft itself but with the way the AP is connected.Thanks for the effort johnLuc 'Glaudrung' Brusselmans

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Goodmorning John,A new day but the same problem persists.This is what I have done the last couple of hours truing to find out what is going on.- I uninstalled the A320-series completely and removed the empty directories in Fs9- I installed the 'Just flight' A330/340 package. I didnt check the version of fsuipc but I tried a flight out of Seattle and the autopilot worked without flaw.- I made a point of downloading the latest version of the installer for the A320 and installed a fresh copy of it.- Checking the fsuipc version, I noticed that it was version 3.2. I changed this into the latest 'custom version' to work with AS2004, by simplu deleting the old 3.2 and replacing it by the 3.317.- I checked weight and fuel to be within limits but after takeoff I, again, couldn't use the autopilot. Engaging AP resulted in a dive to the ground.- After restarting FS9 I tried again but with the same result. I tried then a new flight with the A330 and that went perfect, even with the 3.317 version of fsuipc.I have one more clue to add to the puzzle.I tried to merge your panel with a freeware A321 from it is widely known to be compatible. For some reason, this aircraft gives me the same result so I think (and I am very cautious now), I think that it is somewhere in the panel/gauge where the problem is situated.If you like, I can send you both fsuipc and panel and gauge to check...Sorry to keep bothering you but I really like those busses a lot and I would hate it to lose them.Luc 'Glaudrung' Brusselmans

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Hi LucJust for your information I have upgraded to AS2004.5 and am currently using fsuipc ver 3.317 successfully with all PSS aircraft and other developers as well.....its the most stable i have ever had to date. Not sure how i can help you solve your problem, but if you need any setting comparisons i am willing to give you....and my check box for that elevator trim thingy is blank meaning unchecked.let me know if i can helpJohn Calleja

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Luc, like John C I am using the latest AS2004 beta with FSUIPC 3.317 and having absolutley no problems. If you would like to send me your panel.cfg, air file and aircraft.cfg I will load it on one of my test-bed aircraft and see what happens. My email address is below.

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Hello John,thanks for the reply.I am at my witts end here. I have tried everything but for a complete re-installation of both windows and Fs9.There is something you can check for me if you have the time.When taking off in the A320/321 I see something that is different to taking of in the 330.After configuring for take-off, I give it two notches of flapp.When taking off and reducing flaps, I noticed that in the 330, with every notch, the target speed changes to some higher/faster speed. I don't see it happening in the A320/321 and I have the feeling that the speedsetings are not followed. Even when flying to the numbers on take-off.Secondly, what trimsettings are you using on takeoff with an A320?By the way,I thought to be alone in this but I just received notification that there are others... some consolation at leastthanksLuc 'Glaudrung' Brusselmans

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John,would you try for me this.Download the pfc-driver from the website of Pete Dowson and place the .dll in your modules folder. Even if you don't have a pfc-throttle or yoke, it doesn't matter. You can always delete it afterwards.After you installed that driver, try out the A320 for me and post your findings.ThanksLuc 'Glaudrung' Brusselmans

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Yes john,I do have to use the pfc.dll driver for the throttle quadrant.Thing is that it worked before. Only after the upgrade to fsuipc 3.3 and higher, the problems started.I have mailed you with some more information.Luc 'Glaudrung' Brusselmans

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Hi again LucI agree with John from PSS . i have also read that PCF.dll causes problems, so i do not want to compromise my working setup.....but as far as Trim settings on the A320, to be honest I have never needed to adjust them as I think that on the airbus they are auto set., but i will set up a test flight for you and try the flap reduction speed for you as i never realy worry about them...after take off i try and follow the flight director for vertical speed until either i change to autopilot or i reduce the throttle notch to thrust climb when asked..(whichever comes first)..either way i just reduce the flaps when they come up on the PFD.John Calleja

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Just a stab in the dark here, and you've probably addressed this already, but what altitude have you set the airbus at on take off. I once forgot to set the altitude and I dove into the ground after hitting the autopilot.

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True,This could have been the cause but we have narrowed the problem down to some strange incompatibility between fsuipc 3.3x and higher, the pfc.dll driver and the PSS panel of the A320-series.thanks for the reply though. This is one of those problems for which every idea is welcome.Luc 'Glaudrung' Brusselmans

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To everybody concerned,after some trial and error, Pete Dowson found the solution to my problem.To be correct, it wasn't the version used of fsuipc that caused the problem but the combination of the pfc driver (pfc.dll) and fsuipc.When you uncheck the option "disable interference ..." on the main userinterface of the driver the problem is solved. No more diving to the ground in the A320.However, unchecking is not always an option. So Pete has been so kind to prepare an interim version of his fsuipc (v3.3.3.2 according to the fileproperties). This version is not to downloaded yet but Pete gave me the permission to mail it to anybody with the same problem.Just send me a mail atglaudrung@skynet.beFrom now on the pfc.dll will cause no more trouble for us busdrivers...regardsLuc 'Glaudrung" Brusselmans

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After further discussion with Pete, I think it's important to note that this is not only a problem with the PFC drivers. Pete added some digital noise control (anti-jitter processing) in FSUIPC which is used AFAIK only by the PFC drivers. The bug was in that section of code, but can affect non-PFC users as well. The bug, in all FSUIPC versions from 3.328 to 3.331, can cause the elevator trim axis to be disconnected...very important since the FBW routine used by the PSS panel directly controls elev trim for pitch control. Those folks experiencing noseovers when activating the AP on departure, and those experiencing a dead pitch axis when disconnecting the A/P are both likely affected. Pete sent an interim FSUIPC release to Norman Blackburn at PSS for posting on their web site. No sign of that file yet at PSS. I believe it's the same file mentioned by Luc above. In the meantime, you can revert to FSUIPC 3.2x and that should solve the problem, or if the "disconnect elev trim axis with A/P" option is checked, you can try UNchecking it and see if that helps. For PFC users, you also need to make sure the "suppress possible interference from game port throttle" option is UNchecked as well.RegardsBob ScottATP IMEL Gulfstream II-III-IV-V L-300Washington, DC

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Bob,"For PFC users, you also need to make sure the "suppress possible interference from game port throttle" option is UNchecked as well."That is not completely true,If you have a digital joystick or a very stable one with no 'jitter' you can uncheck this and your pfc driver works just as well.In fact, I have tried this last night and I even found this option a smoother flight than with the new version of fsuipc.If, however, your stick creates a lot of "noise" or when it can't be correctly callibrated, you HAVE to check this option to avoid unwelcome input from your stick.RegardsLuc 'Glaudrung' Brusselmans

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Hi there,I have just upgraded to FS2004... WOW! Great graphics, I'm running FSUIPC 3.30 with the 320 (it's the only plane I fly) and I can't say I have this problem. Are you using the load editor check your trim settings before takeoff make sure you have about -1up.Cheers320MAD

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