We have had this problem in Glasair III's (elevator push/pull tube
vibration). Our elevator tube is rather long, so our solution was to put
an idler bellcrank at the midpoint of the tube. Solved the problem.

Bruce
www.glasair.org
 

-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
Marvin Kaye
Sent: Friday, November 07, 2003 8:29 PM
To: Lancair Mailing List
Subject: [LML] Re: good news (speed) / bad news (resonance)


Posted for "Charles R. Patton" <charles.r.patton@ieee.org>:

Scott,
Thinking back on my aeileron counterweight resonance with the engine
speed, is
it possible that the resonance is due to elevator push-pull tube
tension?