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The vertical bar depicts the current stick position.
Please note that trim values greater than +100 % and
less than -100 % cannot be presented in the display.
Sample collective pitch curves for various flight
phases:
Control travel
Control travel
Hover
Aerobatics
Notice about marker keys:
If marker keys have been set in the »Basic
settings, model« menu, page 102,
touching a key while in this graph will set a
dashed vertical line to show the position of the C1
stick at the time the key was pressed.
Pitch
Input
0%
Curve
Output
0%
off
Point
?
0%
Normal
Move the C1 stick (continuous line) to the marker line
in order to read out the input and output values.
If the marker line, for example, indicates momentary
hovering flight and this is to be put exactly in control
centre then it is only necessary to transfer the
"output" value of the marker line, in this example, shift
control centre to reference point "1".
194 Program description - Helicopter mixer
Erasing reference points
To delete one of the reference points (1 to max. 6), use
the stick to move the vertical line into the vicinity of the
reference point in question. As soon as the reference
point number and its associated value is shown on the
"Point" line (see screen image above), following activa-
tion of the value field on the "Point" line now in inverse
video with a simultaneous tap on the or keys
of the right touch pad (CLEAR) it can be erased. Com-
plete the operation with a brief tap on the centre key
ESC
of the left touch pad.
Control travel
The "L" and "H" points, on the other hand, CANNOT
3D
be deleted.
Channel 1 Throttle
Channel 1
Input
Curve
Output
off
Point
Normal
Unlike the »Channel 1 curve« menu, this display is
1
only associated with the control curve of the throttle
servo, whereas the the "Channel 1 curve" affects all
–
+
servos controlled by the throttle/pitch stick.
Note that the output signal of the "Chan-
nel 1 curve" menu thus functions as an
input signal for the throttle curve pro-
grammed here: In the graph, the vertical line is
synchronized with the throttle/collective pitch
stick and therefore follows the current Channel 1
curve characteristic.
(Throttle curve)
Throttle
+25%
+25%
?
+50%
–
+
The throttle curve can also be defined (separately
per flight phase) by up to 8 points, termed "reference
points", placed at any point along the stick travel.
The reference points are defined, adjusted and
erased in the usual way, as explained in the previous
section on the collective pitch curve. Start by defining
the throttle curve with three points, namely the points
"L" and "H" at the extremes, plus the Point "1" still to
be set in the control centre in order to match the mo-
tor power curve to the collective pitch curve.
Helicopter with carburettor or electric drive sys-
tem with speed CONTROLLER
This setting relates only to the control curve of the
throttle servo or the speed controller.
Setting the throttle curve to suit a helicopter equipped
with a speed governor is discussed in the following
section.
As with the configuration of the collective pitch curve
(see previous page), the throttle curve can also be
defined by up to 8 points.
•
In each case, set the control curve so that when
the throttle/collective pitch stick is in its end posi-
tion, the carburettor is fully open or the control-
ler of an electrically-powered helicopter is set to
maximum (except for auto-rotation flight, see page
206).
•
For the hover point, which is normally at the con-
trol centre, the carburettor setting or power control
for the speed controller must be matched to the
collective pitch curve so that the correct system
rotational speed is obtained.
•
At the minimum position of the throttle/collective
pitch stick, the throttle curve must first be config-
ured so that a glow motor runs at a speed con-
siderably higher than idle speed and the clutch is
firmly engaged.
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