Frans=2C
My tailplanes are in the house and I just weighed the port one. It is 5.9 k
g.
Karl
> Date: Tue=2C 24 Nov 2009 15:50:08 +0100
> From: frans@paardnatuurlijk.nl
> To: europa-list@matronics.com
> Subject: Europa-List: Tailplane balance mass
>
l>
>
> Gentlemen=2C I have an important question.
>
> How did the tailplane balancing work out for you with the Europa
> supplied counter weights? How much did you need to remove from the
> weights=2C or did you need to add some weight?
>
> I have a large weight=2C a middle sized one=2C and three smaller ones. Pr
ior
> to filling and painting=2C one of each size was sufficient to roughly
> balance the tailplanes. The tailplanes were built by the factory and
> have not been modified (except for the mandatory mod=2C but this was at
> the axis of the tailplane and shouldn't have much influence on the balanc
e).
> Now=2C my airplane is painted=2C and I discovered that with all 5 weights
on
> the balance arm=2C I'm still slightly out of balance.
> The manual strongly suggests that it should be "more than likely" that
> some weight has to be removed=2C and that it is very unlikely that one
> needs additional weight. But I need additional weight=2C and I want to
> know whether this is normal=2C and if not=2C what the reason is.
>
> As I said=2C the controls where factory built=2C and I had no reason to
> believe that they were heavier than average.
>
> My airplane has been filled and painted by a well respected painter who
> has not only built himself an airplane as well=2C but has filled and
> painted many airplanes from the Dutch homebuilders club. It is not
> likely to assume that he has done a bad job on my airplane or used non
> suitable materials=2C but at the moment it starts to look like he added
> quite some weight to my airplane. Also the ailerons appeared to be
> heavy=2C as they appeared in balance without any of the material removed
> from the lead blocks.
>
> Knowing the weight I needed to add to balance the tailplanes I could
> roughly work out that each tailplane gained about 1 Kg of filler and
> paint. Is this reasonable?
>
> So=2C I would very much like to know whether it could be somewhat normal
> that the balance weighs are just a tad to light for their task.
>
> I plan to weight my airplane soon=2C but I'm getting quite worried about
it...
>
> Frans
>
>
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