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Advanced HELP WITH CRASHED P3A

Discussion in 'Phantom 3 Help' started by Enrico P., Jun 19, 2016.

  1. Enrico P.

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    hello friends,
    my p3a just flew down from the sky for no reason at all, i am shocked, i flzy from over a year
    some of the most techy of you, could help me in understanding from the flight records what happened?
    here attached the file
    thanks guys
     

    Attached Files:

  2. Enrico P.

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  3. msinger

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    Were all of the props attached when you found it?
     
    Enrico P. likes this.
  4. Meta4

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    Your battery was 87% at the start.
    How long since it was charged?
     
  5. Enrico P.

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    3 on 4 yes
     
  6. Enrico P.

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    few days back
     
  7. Meta4

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    Quite a few as it's commenced discharging.
    Flying with a partly discharged battery is likely to end up with the Phantom falling from the sky.
    There have been quite a few cases of this.
    DJI recommend in the manual that you only fly with a fully charged battery.
     
  8. Enrico P.

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    yeah, but we are talking at 83% charged battery!
     
  9. Meta4

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    As many have found out 83% isn't just a little less than 100% if the battery has been sitting and discharging. There are quite a few threads about this. SKIs warning to only fly with a full battery is to be taken seriously
     
  10. Meta4

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  11. msinger

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    Are you saying one of the props was missing?
     
  12. Enrico P.

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    yes, it seemed so. but it few down not straight, so i don't think it is that thing
     
  13. Enrico P.

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    my friend that was flying with the P4 took a video of mine falling from the sky!! you can see clearly that at a certain point in the sky the propeller flew off, but not before!!! i am going to upload it!
     
  14. MasterBlaster

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    Can you share the video?


    Sent from my iPad using PhantomPilots mobile app
     
  15. Enrico P.

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    working on it!
     
  16. msinger

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    When a prop flies off, the Phantom drops like a rock. That's what your log indicates happened too. Since you're confirming a prop was missing, that explains the mysterious drop from the sky.
     
  17. Placidof

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    Sure, but what if the prop spins off during the fall? (I was the one with Enrico when the accident happened and I was filming with my P4). You can clearly see the Phantom falling down for a while and THEN the prop spinning out. Couldn't be a motor stop with inertial push off?
     
  18. msinger

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    I doubt it. If you review the DAT flight log, you can see more information about what each motor was doing at the time.
     
  19. Placidof

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    thank you, very useful indeed, I was still thinking DAT files were not readable, Shall we use DJI Log converter ?
    I am very keen to understand as well what happened with the drone, I just bought mine and seeing Enrico's one falling like a rock was not an injection of confidence in the machine's reliability...
     
  20. Luap

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    To view the Dat you need the converter available at
    DatFile.net
    Or you UL the Dat files of that day in dropbox or google drive and post the link here. Its probably the second last one recorded of that day but every time you turn the battery on in the P3 it will start recording a Dat so it can be tricky to find the correct one.
    If its a prop that flew off it will show in the Dat.