User manual

232
Program description - Profi trim | Winged models
Profi trim
Flaps and aileron trimming
This option is available as standard on
both transmitter types.
The transmitters
mc-16 HoTT and
mc-20 HoTT has an integrated soft-
ware function for direct trimming of all flaps and ailer-
ons.
This feature, named »Profi trim« because of its
functional similarity to the Profi-Trim module for the
mc-24 but only available on that transmitter as a re-
trofit option. Select this feature from the multi-function
menu with the selection keys of the left or right four-
way button …
Tx. output swap
Telemetry
Fail-safe adjust
Profi trim
Trim memory
Teacher / pupil
… then open this menu option with a brief tap on the
center SET key of the right four-way button.
Profi trim
AI
AI
FL
FL
TR
CTL
ON/OFF
OFF OFF OFF OFF
–––
–––
–––
–––
–––
SET SET SET SET
Programming procedure
To set the desired option, move the marker frame
onto the desired line or column with the selection
keys of the left or right four-way button then briefly tap
the center SET key of the right four-way button. Select
the desired entry in the field now displayed in inverse
video with the selection keys on the left or right four-
way button or move the desired transmitter control.
Conclude the procedure with a tap on the ESC key.
Programming is done in three steps:
First of all, in the “TR” line it will be established just
which flap pair is to be trimmed as “AI” and/or “FL”.
The “CTL” line specifies the control channel over
which the given trim function is to be performed and,
finally, a switch is defined in the “ON/OFF” line by
which this profi-trim function can be switched on or off
globally.
TR
Notes:
• Please note that, depending on the number of ai-
leron and flap servos specified in the »Model
type« menu, page 105, some settings cannot
be used. For example, with only 1 aileron and/or 1
flap servo there is no aileron flap activation possi-
ble, and the opposite is also true. Since this is the
case, a number of settings in various columns re-
main ineffective.
• Pay attention to potential double-assignments
when making trim control choices.
The trim functions which can be activated (ON) or
deactivated (OFF) on the first line of this menu, either
individually or in any combination, make pre-flight cor-
rections to aileron and flap settings quick and easy,
without the complexity of having to call up individual
setting options.
Individually, these are functions for …
• Trim of the aileron function for aileron (“AI”)
• Trim of the flap function for aileron (“AI”)
• Trim of the aileron function for flaps (“FL”)
• Trim of the flap function for flaps (“FL”)
Tap on the  or  selection keys of the right
four-way button at the same time (CLEAR) to reset
the value of the field displayed in inverse video back
to “OFF”.
Note:
Regardless of a switch’s ON/OFF setting (see further
below), the reset of a value field in the “Trim” line has
the effect an immediate return of the affected trim
function to its original reference point.
mc
 
16 20