REFLECTOR: Torque on elevator push/pull tube

[via Reflector]

Brian,

be sure that when the stick is in the centered position that the rod ends at both ends of the aileron torque tube are vertical.  If they are angles then you can cause them to either bind if the jam nut is tight, or the rod end will turn when it hits the side like you are experiencing.  If need be take some jet nuts (1/4") and ream them out and use them as spacers for the rod end to have more movement for the bearing.  

As for the pitch, try to get an extra 3-5 degrees as that will help out your low end a lot.

John Abraham
Executive V.P. Sales and Marketing, Chief Pilot


-----Original Message----- 
> From: "Brian Michalk via Reflector" <reflector at tvbf.org> 
> To: "John Dibble" <aminetech at bluefrog.com>, "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org> 
> Date: 09/29/14 08:45 
> Subject: Re: REFLECTOR: Torque on elevator push/pull tube 
> 
> I was measuring elevator throw, but my concern now is the rotating 
> elevator push-pull tube that is rotating on the rod end threads.
> 
> 
> On 09/29/2014 07:39 AM, John Dibble via Reflector wrote:
> > Are you talking about both the elevator and aileron?
> >
> > On 9/28/2014 9:45 PM, Brian Michalk via Reflector wrote:
> >> I measured my down elevator deflection, and found that I was not 
> >> getting the full throw, and decided to adjust the length of the push 
> >> pull tube to fix the problem.
> >>
> >> I unscrewed five turns on the rod end, and then tightened up the 
> >> locking nuts.  Next, I was checking for full range of controls and 
> >> noticed that the rod ends are rotating in the tube at the ends of the 
> >> max aileron travel.  The problem is that the rod ends are not able to 
> >> handle the entire rotation of the aileron tube.  The threaded portion 
> >> of the rod ends are rotating inside the bushing.
> >>
> >> Has anyone else seen this?  I strongly believe that this is a 
> >> problem, but I've never heard of anyone else with this problem. It 
> >> might take a few years, but it seems like the threads will eventually 
> >> strip out.
> >> _______________________________________________
> >> To change your email address, visit 
> >> http://www.tvbf.org/mailman/listinfo/reflector
> >>
> >> Visit the gallery!  www.tvbf.org/gallery
> >> user:pw = tvbf:jamaicangoose
> >> Check new archives: www.tvbf.org/pipermail
> >> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
> >
> >
> > ---
> > This email is free from viruses and malware because avast! Antivirus 
> > protection is active.
> > http://www.avast.com
> >
> > _______________________________________________
> > To change your email address, visit 
> > http://www.tvbf.org/mailman/listinfo/reflector
> >
> > Visit the gallery!  www.tvbf.org/gallery
> > user:pw = tvbf:jamaicangoose
> > Check new archives: www.tvbf.org/pipermail
> > Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
> 
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
> 
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html