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Compass Error During POI flight

Discussion in 'Inspire 1 Discussion' started by BaldEagle, Sep 19, 2015.

  1. BaldEagle

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    This afternoon, I had a compass error come up in the middle of flight that dropped me out of POI mode. I had actually compass calibrated just before flight and was testing different speeds around a pond at about 125feet. I was going about 12MPH in a large circle when the error message came up. The bird did not do anything dangerous, thank goodness, and the error message went away when it came out of POI mode. I don't remember the exact wording of the error message but it was something like, "A compass error has occurred. You have been returned to ... mode." I recalibrated and checked values and all was well, went back into the air and all was well.

    I wonder what happened. Could have been a fluke, but could a faster rate of speed in the circle somehow have overwhelmed the flight controller and processing needed? Could POI flying somehow affect the IMU or compass?

    I don't know. It was interesting, though, that it dropped out of POI mode and gave me an opportunity to bring her down safely.
     
  2. The Editor

    The Editor Moderator
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    Probably because you calibrated right before flight and got a bad calibration.
    There is no need to calibrate the compass before every flight.
     
    damoncooper likes this.
  3. huppe

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    As Editor said don't calibrate to much.I have calibrate my Inspire maybe 5 times even when I'm going around Europe.Also wondering why people calibrate just before flight.I always calibrate in my garden and always after FW upgrade.Fly next day and that is it.
     
    The Editor likes this.
  4. huppe

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    That's why you need to practice in ATTI.Glad you had a safe return
     
  5. BaldEagle

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    I calibrated because I had not calibrated since firmware update, but thank you all for the replies.