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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsSkookum › sk720 gone bad or servo?
05-31-2011 03:13 AM  9 years ago
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OT45

rrApprentice

Kingston, NY

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sk720 gone bad or servo?
The last few flights did not feel right with the sk720. The heli had a tendency to roll to the left on take off followed by pitching (elevator)oscillations. I could almost not get it off the ground. On landing it just rolled over to the left...damaged the blades as I did not expect that to happen.
I did check the servos and all seem fine?
The flight log shows mechnical/servo failure.
The flight log oddly shows the heli rolling to the right not to the left.
Any thoughts?
scratch building is not just for planks
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05-31-2011 11:35 AM  9 years ago
Ben-T-Spindle

rrProfessor

Central Illinois

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Mechanical servo failure indicates that the servo is no longer capable of the speed and torque required to follow the SK720 commands under flight loads.

Definitely time for a new set of servos. I went to BLS servos as the last about 10-20 times longer and draw less current than the old brushed motor servos. Flybarless works servos much harder so it really pays to get servos that will last.

... BTS
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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsSkookum › sk720 gone bad or servo?
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