REFLECTOR: AN111 rudder cable bushing

[nmflyer1 at aol.com]

Brian, 

I drilled out my rudder horn to accept a oilite bushing that I pressed in. Then I used an an3 ( I think, I could go look). 
with a locknut. The AN111 pivots on the bolt, and the bolt can also pivot in the bushing. Seemed secureand moved freely. 

Kurt 


-----Original Message-----
From: Brian Michalk <michalk at awpi.com>
To: Jim Agnew <Jim_Agnew_2 at yahoo.com>; Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Fri, 23 Jan 2009 10:31 am
Subject: Re: REFLECTOR: AN111 rudder cable bushing



I take it from your suggestion that the cable does not slide on the bushing?
Fastening the bushing tightly to the rudder horn so that it does not 
rotate is an incorrect attachment?

Jim Agnew wrote:
> Brian, I think that I was the originator of this method of rudder horn 
> attachment.  I wanted to prevent the cable from twisting and the 
> thimble from flipping overt and catching on the horn when the wind 
> started flapping the rudders.  First I drilled and tapped the horn for 
> an AN3 or 4 bolt (I don't remember the size) and tapped it.  Crimp the 
> cable tightly on the AN111 bushing, use a short bolt with a shoulder 
> for the bushing and a thin SS washer.  The bolt goes thru the bushing 
> and washer and threads into the top of the horn leaving just enough 
> space for the bushing to rotate.  I coated the bolt shank and the top 
> of the washer with a little NeverSeize so it would rotate easily.
>  
> The answer to your question is that the rotation of the bushing allows 
> the cable to fold in a curve away from the horn instead of  crimping 
> and potentially twisting over and catching.
>  
> Jim
>  
> James F. Agnew
> Jim_Agnew_2 at Yahoo.Com
> Tampa, FL
> Velocity 173 Elite Aircraft Completed & Flying
>
>
> ------------------------------------------------------------------------
> *From:* Brian Michalk <michalk at awpi.com>
> *To:* Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> *Sent:* Friday, January 23, 2009 10:57:26 AM
> *Subject:* REFLECTOR: AN111 rudder cable bushing
>
> I've been having people over to inspect the plane, and the last person
> wanted castellated nuts on all things that rotate such as cable/rudder
> horn, cable/rudder pedal, pitch trim and control stick.
> I purchased drilled bolts and castellated nuts for everything and
> decided to switch out my thimble in the rudder to an AN111 bushing.
>
> Now, it's not clear to me how the bushing is supposed to keep the steel
> cable from jumping out of the AN111 bushing.  Is this design correct? 
> It's just a little interesting 
to me.
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