Dear Forum Members,
I just finished getting everything ready to bond the fuselage top. I spent the
last two weeks tweaking the clecoing of the fuselage top (and other nifty simple
tricks which I can share) to ensure I had nearly zero friction in the stab
torque tube bearings. It is so smooth that now I am able to feel vertical play
when I move the stab tip vertically. The play, at the TP11 bearing, is in the
order of 0.004 to 0.005 inches. Doesn't sound like much but at the tip of the
stab is quite noticeable. This play doesn't make me happy (new plane, sloppy
already) but before I start tearing things apart (which I am becoming quite
adept
at this point) I need to know:
1.- Is there a specification for maximum play between the TP11 bearing and TP12
drive plate?
2.- Anyone knows the tolerances for the diameters of these components (TP11 ID
and TP12 OD) so that I can measure them?
3.- Is this play common in airplanes where the builder was able to achieve
nearly
perfect alignment of these components?
I contacted Europa (first time since I started building) to see what they tell
me.
Regards,
Chris Martin
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