Dan,
I too had grave concerns about the flimsy method of attaching these
vital
bushes into the tail plane. These concerns have subsequently proved to
be well
founded.
I incorporated both bushes into a strong but lightweight (48 grams
each) tube
that bonds the entire bush surface area and prevents either of them
going
anywhere should the glass/steel bond fail. It also significantly
simplifies the
build process. I've enclosed a Word Document that describes the
technique.
This will only be of interest to those of you building the tail plane
from
scratch and cannot be retrofitted to completed tail planes.
All mods should of course be carried out with the approval of the
appropriate
authority.
Hope this helps
Nigel
dfgeldermann wrote:
> Did the discussions last January regarding TP6 sleeve bonding failures
> within the tailplane ever reach a conclusion on a cause for the problem
> (e.g. slack drive plates in TP12) or a recommended building change? I'm at
> the point of getting ready to rough them up and glue them into the foam
> cores. Appreciate any input...
>
> Dan Geldermann
> A139
>
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