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• Hardy Yu observed vibration on Z axis was high for all flights

• Houston is not stock PIDs, it’s the tune from the old Houston, this is the newer Houston but same frame.

  • Unsure what the aggressiveness was set to from the past Houston tune

  • Daniel Puratich suspects the high aggressiveness on the tune of previous Houston results in an un-stable tune on this new Houston, especially when the new Houston is loaded with extra weight.

• EKF warning generally happens during crashes

• Vibration overall in the logs doesn’t appear to be that bad.

• Pixhawk is secured with tacky tape and a zip tie over the top

• This was the pixhawk that was in the pond, possibly its pixhawk?

Root Cause Analyses

Analyzing the log files to determine why this crash occurred and how we can not repeat these mistakes.

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