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Old 04-21-2007, 10:09 PM
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Tired Old Man
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Default RE: 87" Yak Rudder hinge pins broke

Shawn,

You know that high speed jitter you have with the 8611's on the one surface of your Extra? I had the same condition happening with a new 8611 on the rudder of my Edge. It happened so much and so fast that it broke the Gorilla Glue joints around the hinge points on the vertical stab. For me that lends a little credance to the allegation of the servo hunting on this persons Yak breaking the hinges.

That jitter (I was informed) is caused by the servo attempting to find center after the gears have worn too much. They start bouncing like crazy. The "story" is that the linkages are being improperly set up, causing the servo gears to undercut the teeth on the adjacent gear. Don't know how that applies to servos in the first couple of flights though. Mine was new also. I asked JR if they had any plans to change gear material and was told the 8611 is just great as is

I just placed a reservation on 5 Hitec 5955's with Wild Hare for my next plane....