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Europa-List: RE: Tail plane questions

To: europa-list@matronics.com
Subject: Europa-List: RE: Tail plane questions
From: Erich Trombley <erichdtrombley@juno.com>
Date: Thu, 14 Nov 2024 07:19:06 -0800
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--> Europa-List message posted by: Erich Trombley <erichdtrombley@juno.com>

Hello Alex,

My tailplane is the same.  This is typical and does not affect the flying 
quality or characteristics of the plane.  If I recall correctly the lower 
fuselage has a slight twist in it.  I would suggest leaving as is.  

If you attempt to relocate the bushings in an effort to level the torque tube 
you will change the alignment of the tailplane with the mating profile molded 
into the sides of the fuselage.   This mismatch between the fuselage and 
tailplane will be very noticeable.  Hence, the recommendation to leave as is. 

Regarding the modification to tailplane mass balance arm.  Again, if I recall 
correctly the TP18C Adjuster Body was adjusted to the extreme end of TP18B End 
Fitting.  This created a large bending moment at root end of TP18C resulting in 
its failure.  Europa issued mod 70 with a redesigned mass balance arm and 
constraint of the TP19 Weights.  

The failure was attributed to a number of landing mishaps.  Regardless, the 
original design did not adequately keep the weights from swinging side to side 
as there was no means to tighten or adjust the lateral restraining cables. 
Additionally, it was deemed that heavier tube and a stronger adjusting 
mechanism were warranted. 

Lastly, I noted that you have kit number 529.   Most likely your kit has the 
redesigned TP18 arm.  Per the documentation in Mod 70, kits up to number 194 
were affected (those delivered prior to February 2005).   So, maybe this isn’t 
an issue for you. 

Regards,

Erich Trombley
N28ET
Classic Mono 914




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