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Problem with Grob-103
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February 13th 19, 05:21 PM posted to rec.aviation.soaring
Go Soaring
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Posts: 31
Problem with Grob-103
Normal bias configuration. Springs attached pushrod.
Front spring fully fwd on pushrod, rear spring 110 mm
from the rear end of pushrod
t 18:02 11 February 2019,
wrote:
Early Twin-2=E2=80=99s had aerodynamic elevator
trim (trim tab), but later
=
models went with spring trim. The jumping back
reminds me of a slipping
tri=
m bar where the desired trim position
doesn=E2=80=99t hold its setting.
Rec=
ommend you pull the front seat and see if there is any
slipping of the
desi=
red trim position. Can=E2=80=99t remember exactly
what the trim setup is
on=
the Twin Two, but a look under the seat will reveal any
malfunction.
Hope this helps,
JJ
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