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RE: Europa-List: Re: Mod 73 - slightly different

Subject: RE: Europa-List: Re: Mod 73 - slightly different
From: William Daniell <wdaniell.longport@gmail.com>
Date: Tue, 16 Oct 2012 14:05:11
Stephan

How on earth did you get the washers lined up?  Or are they not two 
pieces but one =9Cmini sleeve=9D as it were?

Will


From: owner-europa-list-server@matronics.com 
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Stephan 
Cassel
Sent: 16 October 2012 12:16
Subject: Re: Europa-List: Re: Mod 73 - slightly different


Hi Europa pilots/builders 


I did the mod 73 per instructions five years ago and at first it looked 
good. After a short while the play was back.

My assembly was perhaps a bit tighter then normal so the Loctite did not 
penetrate enough. 


In order to get rid of the play I made =9Cspecial=9D washer, 
situated inside the torque tube. Now it was possible to tight the tubes 
hard together. 

The result was a zero play system. Complete solid for 5 year (340 hours) 
. I know another builder that has solved the play in the same fashion 
with complete success.


Here is draft drawing that shows the parts involved. In my case it was 
only necessary to change the outer bolts:

  <http://aero2012.scassel.se/Images/tailplanemod.PNG> 
http://aero2012.scassel.se/Images/tailplanemod.PNG


It is necessary to create a spanner with looong shank. I used a wooden 
stick and strapped the spanner to it. After 30-40 minutes and some 
swearing (not much) it was tight, very tight I may add.


Additionally I made a thin black line, 4-5 cm long, on fuselage when TP 
trailing edge was fully down, parallel with TP skin. This reference line 
makes it very easy to catch very small play over time.

So far the TP is still on the reference line. I check this on every pre 
flight. 


Best regards

Stephan

LN-STE Mono in Norway.



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