I seem to remember a discussion about the need to oil the motor bearings every 6th flight.
I was on the phone with 3DR about another subject and when finished I said "oh by the way"
blah, blah, need to Lube? and the answer was yes, I will send you the directions.
I did not receive the information as of 2 weeks later.
How often to do oil the bearings?
with what oil?
Decades ago I…
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