MK Dual Elavator Bellcrank & Pushrod?

[Karl G. Mueller]

Jerry,

I had two servo gears stripped from the harmonic vibration using the 
MK elevator bellcrank. A support of some kind (foam, balsa) halfway
along the rod is a must. First time I was able to save the plane, not so
the second the second time. And it was inverted too.

Karl G. Mueller
kgamueller at rogers.com

  ----- Original Message ----- 
  From: Jerry Wilson 
  To: discussion at nsrca.org 
  Sent: Wednesday, February 02, 2005 10:59 PM
  Subject: MK Dual Elavator Bellcrank & Pushrod?


  I've mounted the bellcrank and will use Central's carbon fiber push rod.  The pushrod length from servo to crank is about 28".  

   

  Is it necessary to install a support of the rod  halfway down the fuselage to prevent flexing.  And if so does anyone have a simple way of doing this inside a fiberglass fuselage?

   

  TIA

  Jerry

   
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