MK Dual Elavator Bellcrank & Pushrod?

[Tom Hinton]

Why not put some rubber inside the rod to dampen it? That's that is done on golf clubs and it works well. 
  ----- Original Message ----- 
  From: Karl G. Mueller 
  To: discussion at nsrca.org 
  Sent: Thursday, February 03, 2005 9:28 AM
  Subject: Re: MK Dual Elavator Bellcrank & Pushrod?


  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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