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Nov 12, 2006, 04:26 AM
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Death of a servo


The answer is the brushes in the tail servo wore unevenly so the servo movement for left rudder was taking more power while the servo movement for right rudder was unaffected. Eventually the servo stalled when applying left rudder. This caused the H-bridge transistor for that direction to heat up and melt out of its soldering.

Got only 12 lousy hours out of that HS-81MG servo before burnout. Flying a machine which destroys itself to stay in the air feels a lot
like NASA. Spending $43 on metal gears for those servos was the dumbest thing since falling in love with Utahhans.

With the last HS-81MG installed got 2 nominal flights:

4000mAh
30min

3300mAh
24min
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