For those who have gotten past setting up the TP trim system -help. I'm
trying to figure out if I have a problem or 'am just imagining one. I set
up my trim tab bellcrank and Mac servo per the manual. I get slightly more
than the required full up and down motions of both the tailplanes and the
tabs when the servo is set in the mid-position with neutral tabs when the
TPs are level (so far life is good).
My concern is that when I run the servo jack screw full down (tab T.E.s go
down for max up trim) and then try to bring the TP trailing edges to full
up, the servo plastic fork ends and the bellcrank contact the TS05 link rod
and prevent the TPs from going through their full length of up travel. I've
tried clamping the bellcrank and servo higher on the bulkhead, but I've come
to the top of the servo being at the top edge of the bulkhead plywood
insert. I still have the contact of the servo fork/bellcrank with the TS05
when the servo jack screw is full down and the TP gets to about 9 degrees
up.
I've looked at several Europa websites and also noticed some of the
discussion threads on moving the assembly up a few mm, but I haven't seen
anything on the TP travel limits with the trim settings at extremes. Short
of enlarging the top of the slot in the bellcrank bracket so the servo arm
doesn't move the back of the bellcrank down as far during its run I'm not
sure how to deal with this.
Thanks for any inputs,
Dan Geldermann
A-139
Herndon, VA
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