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Thread: Camsim a220 Contact Points

  1. #1
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    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

    Thanks!
    Carlos Si

  2. #2
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    Default

    Carlos - I tried replying to your post and it created a new one??? Never seen that before!

    Rick

  3. #3
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    Fort Worth, TX, USA
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    Default

    Frankly, I looked at the aircraft.cfg, particularly the weights, and got disgusted. I've seen models that play fast and loose with specifications, but this is insane. If they can't be bothered to look at wikipedia and see what the empty weight is, then I can't be bothered to download the model.

  4. #4
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    Quote Originally Posted by TheRedBadger View Post
    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

    Thanks!
    Carlos - I just had the same thing happen to my Boeing 787, I had inadvertently deleted one of the
    ] on the following:

    [contact_points] the right one was deleted and, wow, I had a bucking bronco! Check yours, may be something simple as that!

    Rick

  5. #5
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    Boca Raton, Florida, USA.
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    hi,

    you just can NOT state these 3 lines !!!

    the weight, MOI are having a big IMPACT as well !!!

    The figures 1.0, 2.5, 0.8100 are TOTALLY wrong ......

    The distance of the of the Nose Gear sees to be pretty good.

    not only the [Contact_Points] are simply "well defined" BUT the DIMENSIONS in [Airplane_Geometry] section

    are very "Precise" as well ...

    OMG


    sincerely

    g. kirschstein

  6. #6
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    #### Copied from the extra post generated for this topic######


    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

  7. #7
    Join Date
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    Location
    Boca Raton, Florida, USA.
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    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

  8. #8
    Join Date
    Mar 2014
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    Quote Originally Posted by Downwind66 View Post
    #### Copied from the extra post generated for this topic######


    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
    Quote Originally Posted by GKKnupper View Post
    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
    Yeah seriously. It almost feels like they just took the flight dynamics and specs for a 787 and crammed them into the a220. It's free so I can't complain but it's not "free" the moment I spend HOURS trying to fix things. I appreciate the work they put in, but I'd rather people not "lure" a stubborn fool like me to trying to fix awkward aircraft.

    I hadn't touched this in a while because of that fact alone; I spent so much of my free time off from work wasting it tirelessly with little success. Even now it's not the best aircraft I've got. Sorry for not responding. I just chose I couldn't look at this plane for a while else do this til the day I die.

    I'm definitely interested in your work, Senore Kirchstein! And appreciate the time you took to take care of this.
    Carlos Si

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