Free fall from 600 Meters

Hello,

Yesterday I had a crash, my Quadro falls down from 600 meters. :(

I fly with this copter many hours, never any Problem.

 

Spektrum DX8 with Satelite

UBec for APM

APM 2.0 Firmware 2.7.3

uBlox LEA-6

 

 

 

I analyzed the log file and see I had signale lose (throttle failsafe was enabled) and the APM2 turn on the RTL Mode, but after few seconds Turn Off the Motors? Why?

 

Maybee a Bug?

 

 

 

2012-10-13 19-19 4.log

2012-10-13 19-19 4.kmz

Crash Log.png

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  • Hi Silvio,

    It looks like the APM rebooted.

    There's 5 minutes missing from the GPS log, plus a lot of stuff that looks like a re-boot, right during your crash.

    It would be good if you could turn on your motors for logging, it's easier to see what's going on.

    Here's the area of your log where the reboot happens.  Notice the GPS time:

    It changes from 576934400 to 577243000, which is in milliseconds from 00:00:00, Universal Time.

    There is a lot of reboot stuff between these two GPS readings.

    Dan Gray

    GPS, 576934200, 9, 46.3116441, 7.7718227, 601.8300, 1214.1400, 329, 11325
    NTUN, 6969, 293, 0, 0, -75, -850, 271, -114, 0, 0
    CTUN, 0, 0, -5356, -5401, -1, 6, -19, 509, 0, 0
    ATT, 0, -432, -1112, -599, 0, 23755, 24046, 0, 0
    CTUN, 0, 0, -5358, -5401, 0, 3, -20, 507, 0, 0
    ATT, 0, 322, -1112, -184, 0, 23674, 24046, 0, 0
    GPS, 576934400, 9, 46.3116419, 7.7718306, 601.7800, 1214.1400, 323, 11249
    NTUN, 7024, 293, 0, 0, -75, -850, 271, -109, 0, 0
    CTUN, 0, 0, -5360, -5401, 1, 1, -20, 506, 0, 0
    ATT, 0, -766, -1112, -193, 0, 23731, 24046, 0, 0
    MOD:STABILIZE, 503
    PM, 0, 0, 0, 61
    MOD:STABILIZE, 503
    MOD:STABILIZE, 503
    PM, 0, 0, 0, 60
    MOD:STABILIZE, 503
    PM, 0, 0, 0, 59
    PM, 0, 0, 0, 58
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 61
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 61
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 61
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 61
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    MOD:STABILIZE, 503
    MOD:STABILIZE, 503
    MOD:STABILIZE, 503
    PM, 0, 0, 0, 61
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    PM, 0, 0, 0, 60
    CMD, 9, 0, 16, 0, 0, 0, 463116531, 77739981
    NTUN, 4, 348, 0, 0, -75, -850, 0, 0, 0, 0
    CTUN, 0, 0, 74, 0, 0, 10, -76, 0, 0, 0
    ATT, 0, -76, 0, 1116, 4461, 18910, 18808, 0, 0
    CTUN, 0, 0, 58, 0, 0, 10, -118, 0, 0, 0
    ATT, 0, -76, 0, 1116, 4461, 18908, 18808, 0, 0
    NTUN, 31, 226, 0, 0, -75, -850, 12, 9, 0, 0
    CTUN, 0, 0, 39, 0, 0, 10, -154, 0, 0, 0
    ATT, 0, -76, 0, 1116, 4474, 18906, 18808, 0, 0
    CTUN, 0, 0, 22, 0, 0, 10, -162, 0, 0, 0
    ATT, 0, -77, 0, 1116, 4461, 18904, 18808, 0, 0
    NTUN, 18, 16, 0, 0, -75, -850, 0, -4, 0, 0
    CTUN, 0, 0, 5, 0, 0, 10, -166, 0, 0, 0
    ATT, 0, -77, 0, 1116, 4029, 18902, 18808, 0, 0
    CTUN, 0, 0, 4, 0, 0, 10, -88, 0, 0, 0
    ATT, 0, -77, 0, 1116, 2720, 18899, 18808, 0, 0
    MOD:STABILIZE, 487
    GPS, 577243000, 9, 46.3116532, 7.7739986, -0.0200, 635.8600, 0, 1028
    NTUN, 6, 215, 0, 0, -75, -850, 0, 0, 0, 0
    CTUN, 0, 0, 2, 0, 0, 10, -54, 0, 0, 0
    ATT, 0, -78, 0, 1116, 254, 18896, 18808, 0, 0
    CTUN, 0, 0, 1, 0, 0, 10, -32, 0, 0, 0
    ATT, 0, -79, 0, 1116, 0, 18893, 18893, 0, 0
    GPS, 577243200, 9, 46.3116532, 7.7739986, -0.0100, 635.8600, 1, 1028

  • Looks still good for a 600m Crash? ;)

    3692525714?profile=original

  • :(

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