Commercial Drone Pilots Forum

I’ve tracked motor failure data from survey and agriculture drones with consistent daily long-duration flights.
Most premature motor faults stem from bearing degradation rather than burnt windings or magnet loss. Even without crashes, continuous low-frequency vibration slowly creates axial play and extra heat.
Static pre-flight checks can’t spot tiny bearing clearanc...

Hey everyone,
I’ve spent years troubleshooting brushless motor failures for commercial agri and power inspection drones, and yesterday I posted a quick thread about RTK motor interchange issues. Today I wanted to bring up a persistent failure issue we keep seeing on field units to swap real maintenance experience with working pilots.
Most spray and heavy payload mapp...

I’ve been bench-testing multiple low-KV outrunner motors for commercial mapping and crop-spray multirotors over the past few months, and I hit a confusing thermal mismatch issue I haven’t found clear answers for across forums.
All tests used the same 12S LiPo pack, matched FOC ESC, same 28-inch three-blade props, identical frame airflow layout, two stator size motors for c...

Hi everyone,
I’ve spent years working on brushless motor testing and maintenance for commercial mapping, agriculture and inspection drones, and I’ve noticed vibration and overheating are the two most frequent motor failures reported by operators. Many pilots replace the whole motor directly without simple diagnostics, which raises operating costs unnecessarily. I’d like to...

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