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I got my C8 up in the air and it crashed!!!

Discussion in 'Cinestar 8' started by Dave King, Jan 5, 2013.

  1. Dave King

    Dave King Well-Known Member

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    OK, I took it back out today to check the functions and behavior. What a difference!!! It's a million times better. It will sit there at idle until I give it gas to take off and then it does what I tell it to. It took off straight up!!! I brought it down about 30 seconds later because winds are about 10 mph and i didn't want to chance it.
     
  2. Gary Haynes

    Gary Haynes Administrator
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    Dave your welcome. And a gentle suggestion. Find an open field that has green stuff someplace under it rather than a parking lot for those first flights. You should be able to hover the bird 3-5 feet in the air. If it isn't flying land, throttle off, kill the motors, crash land but get it back on the ground from 3-5 feet.

    From a hot air balloon, airplane, helicopter pilot saying: "I'd rather be down here wishing I was up there than up there wishing I was down here."
     
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  3. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    The yaw trim looked ok. Nick and roll, not so good.

    I would suggest some low hovering about six to ten feet up over the snow for your next few flights just to help you get your confidence back. Don't fly it too far away either....baby steps.... :) (Oh, yeah, and a microSD card in the NC board!)

    Andy.
     
  4. Gary Haynes

    Gary Haynes Administrator
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    Dave make sure you buy a 2gb Micro SD card. Anything larger won't work. They are a bit hard to find. Got mine off of Amazon.
     
  5. Dave King

    Dave King Well-Known Member

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    Really? I just got a 8gb card this morning.
     
  6. Steve Maller

    Steve Maller UAV Grief Counselor

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    Yup, needs to be formatted old school FAT. Anything bigger than 2GB can't be formatted that way. ironically you can probably find 2GB cards at your local drug store, and probably really expensively.
     
  7. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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  8. Dave King

    Dave King Well-Known Member

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    Thanks guys for the info.

    I have a couple questions regarding this info. How do you format it for FAT16? Do you have to initialize it or does the Navi board do that upon startup? Do you have to do anything to record a file on the card upon take off?
     
  9. Steve Maller

    Steve Maller UAV Grief Counselor

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    "Into the NaviCtrl you can place a Micro SD-Card in the size up to 2GB (in FAT16 formatted). Here you can save the flight-route and other datas of the Kopter in KML-Format and GPS-Format."

    After formatting it on your PC, just stick it into your Navi board. That's it. And the GPX and KML files take very little space, so you'll be able to save hundreds of flights before you have to format it again.
     
  10. Gary Haynes

    Gary Haynes Administrator
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    You may find that you need to go into a command prompt on a Windows machine and then do the old DOS commands. Last time I tried this that was the only way I could get it to FAT16.
     
  11. Dave King

    Dave King Well-Known Member

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    Does the allocation size matter when you format the card to FAT16? When I select format it just says FAT it doesn't say FAT 16 or Fat 32
     
  12. Steve Maller

    Steve Maller UAV Grief Counselor

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    I believe just plain FAT works.
     
  13. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    I saw somewhere (MK documentation) that it should be FAT16.
    Certainly FAT16 works, though.

    EDIT: Yeah. It's here. Scroll down to MicroSD-Card heading. 2GB, FAT-16.
    Andy.
     
  14. Alex Smart

    Alex Smart Member

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    Hi Dave,
    Your treams must be centerd!I had a similar crash due to compass fail,I coulnd t control yaw or anything and the punk run into a tree!No damage fortunatly...I recomend these steps on top of esencials like prop and motor spin..:
    1:make sure all trims are centerd.
    2: Place the bird on a table and check in MK Tools 3D if its standing horizontal.
    3:Check the gyros and acc on the grafic, acc and gyro curves should be purty much paralel.(I had a Fc with a faulty roll gyro)
    4:Fly the bird without navy and Gps boards,basic test like hover etc
    5:Conect Navi boards and recalibrate them,this step is esential.
    6:Good luck !
     
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