Step #11 Sub Trim
S-47
In FUNC.LIST rotate the Selector until Sub Trim is
highlighted. Press the Selector to access the Sub Trim
menu. Rotate the Selector to highlight the desired
channel, then press the Selector to change the sub trim
value of the selected channel. Sub trim all functions so that
they are in the neutral position (see flap note below). Press
the LIST button to return to the Function Mode screen.
Note: Typical flap geometry requires that the sub
trim be significantly offset to provide adequate down
flap throw. This issue exists because flaps typically
have a large travel down (80 to 90 degrees) but very
little travel up (less than 15 degrees). To achieve
proper flap travel, it is necessary that the right flap
sub trim be set at 225 down and the left flap sub
trim be set at 225 up as a starting point. Then, when
attaching the flap servo arms, be sure the spoiler
stick is in the up position and camber lever is in the
middle position. Install the flap servo horns such
that they are angled approximately 30% toward the
trailing edge, then adjust the flap linkage such that
the flaps are level.
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