I have always changed these once a year or after a bad crash but a friend of mine who takes lessons with a hight level pilot (he was invited to compete and attended the last 3d masters) says his teacher recommended changing these bearings every 30-40 flights! Obviously this is aimed at more advanced flying styles.
What do you lot think? ( also include any other bearings on the heli too)
What do you lot think? ( also include any other bearings on the heli too)
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