GRAUPNER mc-32

242
Program description - Trim memory | Helicopter models
Use the selection keys on the left or right touch pad
to scroll to the menu option »Trim memory« menu
option in the multi-function menu:
Fl. phase timers
Helicopter mixer
Free mixer
MIX active/phase
MIX-only channel Dual mixer
Swashplate mixer Fail-safe adjust
Teacher / pupil Tx. output swap
Profi trim
Trim memory
Briefly tap the centre SET key of the right touch pad
to open this menu option:
TRIM MEMORY
Roll
Pitch ax.
0%
0%
Pitch/thr
0%
Tail rot.
Trim Pos.
0%
0%
0%
0%
0%
SET
This menu permits selective storage of the given
current position for the four digital trim controls in
order to return them afterward to their visual middle
points. This makes the last stored trim positions in the
respective middle positions of trim wheels for control
functions 1 … 4 available again following a model
memory location change or after long flight pauses.
This memory store process is effective on a ight-
phase specic basis for the currently active model
memory location and is not to be stored globally.
Therefore, as soon as having set the options in the
»Control settings« (page 114) and the flight phases
have been defined in the »Phase settings« (page
154)and »Phase assignment« (page 160) menus,
the given active flight phase will be displayed on the
screen's bottom line. For example:
TRIM MEMORY
Roll
Roll ax.
0%
0%
Pitch/thr
0%
Tail rot.
Trim Pos.
0%
0%
0%
0%
0%
SET
Normal
Storing trim positions
The model has been flight tested and trimmed dur-
ing the test flights. Current trim positions are now
displayed in the column "Trim Pos." located approxi-
mately in the middle of the display. (The trim range is
about ±30 % of total control travel.) The right column
displays trim memory content, currently filled uniform-
ly with 0 % because values have not yet been stored.
Therefore, the display appears as follows:
TRIM MEMORY
Roll
Roll ax.
+5%
+3%
Pitch/thr
0%
Tail rot.
Trim Pos.
-7%
0%
0%
0%
0%
SET
Normal
Now use the selection keys on the left or right touch
pad to move to the line whose trim value is to be writ-
ten into trim memory, e. g. the pitch-axis trim value:
TRIM MEMORY
Roll
Roll ax.
+5%
+3%
Pitch/thr
0%
Tail rot.
Trim Pos.
-7%
0%
0%
0%
0%
SET
Normal
Now, with a brief tap on the centre SET key of the
right touch pad, activate the SET column's selected
value eld. The message "Please press trim"
TRIM MEMORY
+5%
+3%
0%
Trim Pos.
–7%
0%
0%
0%
SET
Normal
0%
Please
press trim
Roll
Roll ax.
Pitch/thr
Tail rot.
will then appear briefly in the display.
TRIM MEMORY
Roll
Roll ax.
+5%
+3%
Pitch/thr
0%
Tail rot.
Trim Pos.
-7%
0%
0%
0%
0%
SET
Normal
Now briefly press the trim wheel for the elevator's
stick to accept the trim value.
TRIM MEMORY
Roll
Roll ax.
+5%
0%
Pitch/thr
0%
Tail rot.
Trim Pos.
-7%
0%
0%
+3%
0%
SET
Normal
Another brief tap on the centre SET key of the right
touch pad or the centre ESC key of the left touch pad
will finish the procedure.
Now, if desired, change the flight phase and repeat
the procedure. Perform the same procedure for the
other control functions, as necessary.
Trim memory
Storing the current trim position