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1. In FUNC.LIST rotate the Selector until 15. Sub Trim is
highlighted. Press the Selector to access the Sub Trim
menu.
2. 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.
Step 13. Sub Trim
