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  1. #1
    25+ Posting Member PascalHaldenstein's Avatar
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    Modify Aircraft cfg

    Hi folks

    I've been flying for quite a while with the PMDG-software and I was happy with it. but after looking at some real flight videos I recognized that the feeling of flying the real aircraft must be different. not only because of the fact the your sitting in a real one; no I mean the behaviour of the aircraft in the air. has anybody of you played around with the aircraft cfg to make it feel like you would really fly a heavy aircraft; to get this "heavy" feeling????
    would love to hear what you changed in the aircraft cfg to make it more feel like the real deal.
    Pascal Haldenstein
    B738 Builder
    My Site:www.pascalhaldenstein.webs.com

  2. #2
    300+ Forum Addict NicD's Avatar
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    The two most significant things you can do are to tweak the parameters in the [flight tuning] section of the .cfg file, and, use the joystick axes calibration and slope features in the FSUIPC interface (has to be registered version).

    It's not really feasible to talk individual values because every cockpit and control setup is so different. It's a matter of tweaking a single value at a time, trying it out, and repeating till you're happy.

    Watch cockpit videos - especially when they're on finals - and see how the control movements compare to yours.
    Nic D'Alessandro
    737NG builder (Hobart, Australia)
    http://simsation.com.au

  3. #3
    25+ Posting Member PascalHaldenstein's Avatar
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    Nic

    Thanks for your answer. Ok I'll give it a try.
    Pascal Haldenstein
    B738 Builder
    My Site:www.pascalhaldenstein.webs.com

  4. #4
    25+ Posting Member tasmanet's Avatar
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    The bold ones slow the aircraft responses down a fair bit

    [jet_engine]
    thrust_scalar=1.00

    [flight_tuning]
    cruise_lift_scalar=1.200
    pitch_stability=0.901
    roll_stability=0.800
    yaw_stability=0.800

    parasite_drag_scalar=1.230
    induced_drag_scalar=1.110
    elevator_effectiveness=1.00
    aileron_effectiveness=1.000
    rudder_effectiveness=1.000

    keyboard = 1.0

    The above are from an A380
    The bold ones slow the aircraft responses down a fair bit

    .
    Steve
    Hobart
    Tassie
    Oz

  5. #5
    25+ Posting Member PascalHaldenstein's Avatar
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    Thanks will try
    Pascal Haldenstein
    B738 Builder
    My Site:www.pascalhaldenstein.webs.com

  6. #6
    1000+ Poster - Fantastic Contributor Tomlin's Avatar
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    Quote Originally Posted by tasmanet View Post
    [jet_engine]
    thrust_scalar=1.00

    [flight_tuning]
    cruise_lift_scalar=1.200
    pitch_stability=0.901
    roll_stability=0.800
    yaw_stability=0.800

    parasite_drag_scalar=1.230
    induced_drag_scalar=1.110
    elevator_effectiveness=1.00
    aileron_effectiveness=1.000
    rudder_effectiveness=1.000

    keyboard = 1.0

    The above are from an A380
    The bold ones slow the aircraft responses down a fair bit

    .
    Steve
    Hobart
    Tassie
    Oz

    Hmmm....Thanks for sharing Steve. I always thought that reducing the number from 1 down to a portion of the original would reduce the item it was talking about. In other words, If you INCREASED the "pitch_stability=0.901" to 1.5 then it would be far more stable than at 1, or less.

    In fact I did this to the LJ45 (default of course) and it seems to make the a/c fly much more stable. I increased the roll stability as well, and it wont do a snap roll any longer.

    Thoughts?
    Eric Tomlin-
    Learjet 45 Builder
    www.flightlevel180.org

  7. #7
    2000+ Poster - Never Leaves the Sim Michael Carter's Avatar
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    Just one.

    Without being type rated in our chosen models, how would we know what is correct or not?

    If actual line pilots have reviewed the model and have said "this needs a correction", or "this so-and-so isn't right", then I'd probably want to make any recommended adjustments.

    If the testing pilots and outside unbiased (rated & typed) pilots gives it a thumbs up, that's good enough for me.
    Boeing Skunk Works
    Remember...140, 250, and REALLY FAST!

    We don't need no stinkin' ETOPS!



    Powered by FS9 & BOEING

  8. Thanks Matt Olieman thanked for this post
  9. #8
    300+ Forum Addict NicD's Avatar
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    Well PMDG, like all add-ons, say that it's tested by real life pilots. I don't doubt that, but I have direct feedback from real-life 737 pilots on the flight model that I take into account. The most glaring fault with this model is the loss of attitude when banking .. it's overdone and tweaking can't fully remove it. Lets hope the FSX version improves on that.

    We've also had real-life 737 pilots test our sim and provide feedback on the flight model and control feel. It's invaluable feedback. Caused us alot of work mind you ... it's not easy to get all the parameters right at once. And ours isn't fully right because that's an impossible goal (unless you have a spare few million to pour on it). It's about making the best of what you've got and being prepared to compromise to get a reasonable result.

    Another thing to... getting the feel right for commercial/ATPL pilots is great, but it may make it too difficult for joe-public. So it pays to keep in mind who will be using the sim - if not just yourself.

    Many of us though may not access to that sort of high-level feedback. So do we all just give up and not take up the challenge? I think not. That's where forums like this can help, and sharing your sim with other builders if they can visit etc.
    Nic D'Alessandro
    737NG builder (Hobart, Australia)
    http://simsation.com.au

  10. #9
    2000+ Poster - Never Leaves the Sim Michael Carter's Avatar
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    Most real life 727 pilots are retired or dead.

    The ones who tested the DF727 gave it a big thumbs up with no published descrepancies, but I've yet to find anyone not affiliated with the publisher to tell me exactly what they think of the flight model. If they can remember that far back.
    Boeing Skunk Works
    Remember...140, 250, and REALLY FAST!

    We don't need no stinkin' ETOPS!



    Powered by FS9 & BOEING

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