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Old 11-06-2014, 05:52 AM   #358 (permalink)
Michaelinpr
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Posts: 8,035
 

Join Date: Mar 2009
Location: Puerto Rico (but i am Canadian)
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The metal insert is actually just two washers. One each side. There is material under them.

They broke just off center of the hole towards the tip of the blade. The other ones had white stress marks in the exact same spot.

Just keep the head speeds reasonable and if you notice any vibes or a bad bearing please land. Also check them after each flight.

I was lucky. When I noticed the vibe, I put the heli into a 30 foot hover to check something. Then they let go. Easy auto down.
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