GRAUPNER mc-16 Programming Manual page 231

3. Column "P"
The lines of the column "Mixer" were used to select
one or mixers. Now, in the "Point" column, the refer-
ence points to be trimmed will be set.
To do this, use the selection keys on the left or right
four-way button to move to the desired value field.
Then briefly tap the centre SET key of the right four-
way button ...
Lv1 Pitch
––– None
––– None
––– None
SEL Mixer
If a undefined point is selected – in the basic version,
only points "L" and "H" are set – the respective regula-
tor will remain ineffective.
The point offset (in a maximum range of about ±12 %)
for the selected mixer will simultaneously be displayed
in the curve diagrams of the respective »Helicopter
mixer« or »Channel 1 curve« menu so that the offset
can also be checked visually.
4. Column "PH"
The rightmost column is used, if desired, to determine
which programmed flight phase the given regulator
is to be active. The number preceding flight phase
names, in the example "1" (Normal)", are based on the
phase numbers as found in the »Phase assignment«
menu on page 154:
(Point)
Lv1
––– None
–––
–––
SEL
However, the current position of the regulator will
be – contrary to the corresponding fixed-wing pro-
1 1 gram – set to a new zero point when ...
L 1
• ... by a change of flight phase, individual or all trim
L 1
controls become active or
L 1
• ... the given trim control is erased or
P PH
• ... meanwhile the function assigned in the "Mixer"
column is to be changed.
In all of these cases, the current regulator position will
be stored and automatically overridden, i. e. adopted
into the curve characteristic, by the pre-programmed
curve points specified by the »Channel 1 curve« and
»Helicopter mixer« menus. In this manner it is possi-
ble to simultaneously optimize up to four arbitrary curve
points during the flight.
The memory storage option described here is, for
example, useful during the first test flights of a new
(Phase)
model as this permits the "flown" flight corrections to
be immediately recorded in the program.
However, in order to have a clearly defined reference
point prior to the first time a store is done, it is impor-
tant to put all regulators into their middle positions.
But always be careful that, after repeated
stores, servo travel is not too severely restrict-
ed on one side. Check and correct the control
linkage if necessary.
Pitch 1 2
L 1
None L 1
None L 1
Mixer P PH
Program description - Profi trim | Helicopter models
Sometimes, despite an optimal basic setting for the
model, it becomes necessary to temporarily change
reference points, for example, when the weather has
changed and the motor requires a short-term correc-
tion or even when the muffler gets a leak unexpec tedly,
etc. Of course, in all of these cases, the corrected
settings should not be stored via the Profi trim option.
Storage can be prevented by ensuring that the regula-
tor is in its middle position before activation or deacti-
vation.
Note:
Yet another point, independent of this, can be
regulated via the "Trim point function" through
use of the selection keys. This is described in
detail along with the programming of 6-point curves in
section »Channel 1 curve« on page 137.
231