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  1. #1
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    Always a bit too much pitch

    hi guys,

    my A320 always has a pitch of more or less Up 1.0, also in cruise at high speed. So in my front view, I see relatively little landscape, therefore more sky. During approach the pitch increases of course. But I have the feeling, the view is not as it would be in real live - I see the RWY though, but the angle looks unusual...

    As I could read here, the pitch value is calculated within the software and there's no function to change it, except with Skalarki or FDS Hardware.

    1) so, is this kind of pitch normal?
    2) could it be, that I am using a wrong Topcat model, or wrong load balancing?
    3) or is it simply a matter of view adjustment???

    thanks,
    Michael

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    Re: Always a bit too much pitch

    Hi. Regarding PITCH - please check QRH - URELIABLE SPEED INDICATION (for A320 CFM56-5-B4).

    The aircraft does not have a "main panel". The horizon is in the middle.
    We all usually use projectors. This requires correction - each configuration is different.

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    Re: Always a bit too much pitch

    Hi ToTom, what do you mean with "QRH"?

    So is it normal, that during cruise, always a pitch of approx. "Up+0.9" or so is displayed on the corresponding ECAM page?
    Using a projector as well. If it's just a hardware display correction, that would be good to know.

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    Re: Always a bit too much pitch

    Quote Originally Posted by michael1508 View Post
    my A320 always has a pitch of more or less Up 1.0
    The pitch of the plane or pitch of the elevator? It's different values!
    "Up+0.9" - this is THS position.
    QRH - Quick Reference Handbook

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    Re: Always a bit too much pitch

    I refer to the Pitch Trim value on the ECAM F/CTL page. From my understanding this is the plane, right?

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    Re: Always a bit too much pitch

    You seem to be confusing aircraft pitch angle (that you confirm with the attitude indicator) with the horizontal stabilizer deflection, called pitch trim, which is the value shown in the relevant SD page.

    To set the aircraft pitch without the use of elevators, the aircraft (under normal conditions) is automatically adjusting the horizontal stabilizer pitch trim.

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    Re: Always a bit too much pitch

    Thanks for the technical help. So, is this value for pitch trim (THS) normal during cruise?

    Is there any way to manually change the automated trimming without hardware trim wheels?

    Michael

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    Re: Always a bit too much pitch

    THS: Trimmable Horizontal Stabilizer, so yes. IMO the value you see is normal.

    You have to manually set the initial THS value before takeoff, according to the aircraft CG. To do that you should map the appropriate keys to control it. The exact value can be calculated from a linear function with 24% being UP1.0 and 33% being DN1.0, you can interpolate the other values (max +/- 2.5) or refer to the Stabilizer Trim Wheel Settings table in the FCOM/Weight&Balance section. But you should never manually change it in flight under almost all normal and abnormal conditions.

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    Re: Always a bit too much pitch

    Ok, will try, when I'm back from vacation.

    Isn't Topcat calculating the relevant values? And can you tell, where to set the initial THS Value in the FMGS software?

    Thanks again!

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    Re: Always a bit too much pitch

    Hi Folks, still struggling with this. See my view out of the left window:

    I believe this strong nose up is not normal during cruise. If I understand right, the settings for the pitch trim are responsible for this. Or are the elevators?

    These are my Flight Control Settings:

    Is it normal, that the elevators are not in the middle? Could this be due to wrong joystick calibration? Or can I fix this with the normal FSX viewpoint options??? Questions over questions....

    Hope, you can help! It is annoying, that I mostly see blue sky in the front window and very little horizon with a bit more landscape. Especially for landing this is difficult.

    Thanks,
    Michael
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