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Thread: Camsim a220 Contact Points

  1. #1
    Join Date
    Mar 2014
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    *Blank* Powers
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    169

    Default Camsim a220 Contact Points

    Hi y'all.

    Have done a lot of fixing on their a220 model (including fixing the ridiculous weights, fuel flow, wingspan, etc. Looks like a 787's flight specs and weight). Unfortunately I can't fix the contact points. Sitting on the ground the dang aircraft is shaking violently. Wasn't there before, likely a byproduct of me fixing the weights to the real ones. Here's what I've got. I've tried toying with it (the damping ratio of the nosegear especially) but it makes no difference.

    point.0= 1, 54.420, 0.00, -8.1, 1181.100, 0, 3.500, 70.0, 0.5, 2.5, 0.99, 15.0, 15.0, 0, 0.0, 0.0
    point.1= 1, -10.500, -12.00, -8.5, 1574.800, 1, 3.167, 0.0, 1.0, 2.5, 0.8100, 15.0, 15.0, 2, 0.0, 0.0
    point.2= 1, -10.500, 12.00, -8.5, 1574.800, 2, 3.167, 0.0, 1.0, 2.5, 0.8100, 15.0, 15.0, 3, 0.0, 0.0

    You'd probably need the whole model to test it but I really just need ugidance on what could be causing the problem.

    Thanks!
    Carlos Si

  2. #2
    Join Date
    Jun 2017
    Location
    South Florida
    Posts
    3,894

    Default

    Carlos - Here is a portion of a Camsim A220 aircraft.cfg contact points. Most look within reason of what you have, BUT, pay close attention to the fields showing 0.52, 0.45, 0.45. This particular column of entries varies greatly from yours which shows 0.99, 0.8100 and 0.8100? Play around with these entries to see if you can get the beast to calm down!

    When in doubt, compare your entries to what is being offered in aircraft in the library. Usually you can find what "stands out" and begin finding the fix for what is going on.


    [contact_points]
    point.0=1, 53.82, 0.00, -8.1, 1181.1, 0, 3.500, 70.0, 0.5, 2.5, 0.5200, 15.0, 15.0, 0, 0.0, 0.0
    point.1=1, -11.50, -12.00, -8.5, 1574.8, 1, 3.167, 0.0, 1.0, 2.5, 0.4500, 15.0, 15.0, 2, 0.0, 0.0
    point.2=1, -11.50, 12.00, -8.5, 1574.8, 2, 3.167, 0.0, 1.0, 2.5, 0.4500, 15.0, 15.0, 3, 0.0, 0.0
    point.3= 2.000, -14.167, -95.917, 0.000, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 5.000, 0.000, 0.000
    point.4= 2.000, -14.167, 95.917, 0.000, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 6.000, 0.000, 0.000
    point.5= 2.000, -120.667, 0.000, 2.500, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 9.000, 0.000, 0.000
    point.6= 2.000, 88.417, 0.000, -3.750, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 4.000, 0.000, 0.000
    point.7= 2.000, 14.167, -99.917, 0.000, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 7.000, 0.000, 0.000
    point.8= 2.000, 0.000, 44.750, 0.000, 787.402, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 8.000, 0.000, 0.000

    static_pitch = 0
    static_cg_height = 8
    gear_system_type=0


    Good luck!

    Rick

  3. #3
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    South Florida
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    Default

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  4. #4
    Join Date
    Mar 2005
    Location
    Boca Raton, Florida, USA.
    Posts
    190

    Default

    Hi Senore' Carlos.

    I RE- MEASURED the airplane for dimensions, Geometrie section.(Whhel diameter, Wing Span etc

    All the Contact points are now at the correct value.

    The Wing Area was, I guess done for the BIGGEST Bomber on earth.

    The Plane did fly in the RELEASED version because the engine power was 5X the real value!

    The engine inlet area was 111 sqft ....

    The same is true for the Wing area of >5K sqft etc

    The air file does NOt fit the plane either ...

    So a CORRECT CFG file is available and by utilizing, for that weight class, the Boeing B-737 Air file which works very well.

    IF you are interested to get the FDE set sent me a email to:

    [email protected]

    and I will reply your email with the CFG & Air file.

    Sincerely

    G. Kirschstein

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