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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 center
SET
key of the right four-
way button ...
Pitch
Lv1
––– 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 dis-
played in the curve diagrams of the respective »Heli-
copter 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 assign-
ment« menu on page 158:
Lv1
Pitch
––– None
–––
None
–––
None
SEL
Mixer
However, the current position of the regulator will
(Point)
be – contrary to the corresponding fixed-wing pro-
gram – set to a new zero point when ...
•
... by a change of flight phase, individual or all trim
controls become active or
•
... the given trim control is erased or
•
... 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
1
1
into the curve characteristic, by the pre-programmed
L
1
curve points specified by the »Channel 1 curve« and
L
1
»Helicopter mixer« menus. In this manner it is pos-
L
1
sible to simultaneously optimize up to four arbitrary
P
PH
curve points during the flight.
The memory storage option described here is, for
example, useful during the first test flights of a new
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 restricted on one side.
Check and correct the control linkage if necessary.
(Phase)
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 cor-
rected settings should not be stored via the Profi trim
1
2
option. Storage can be prevented by ensuring that the
L
1
regulator is in its middle position before activation or
L
1
deactivation.
L
1
Note:
P
PH
Yet another point, independent of this, can be regu-
lated 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 »Chan-
nel 1 curve« on page 141.
Program description - Profi trim | Helicopter models
235
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