GRAUPNER MC-32 Manual page 333

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analogously to the combustion helicopter described
here.
With this process, you have carried out the basic
settings for the transmitter as they are needed again
later for further model programming.
The actual helicopter-specific settings take place
primarily in the menu ...
»Helicopter mixer«
Pitch
Channel 1
Throttle
Channel 1
Tail rot.
Tail rot.
Throttle
Roll
Throttle
Roll
Tail rot.
Nick
Throttle
Nick
Tail rot.
Gyro suppression
Gyro offset
Swashplate rotation
Swashplate limiter
Nor mal
The "Pitch" function appears right in the first line. A tap
on the centre
SET
key of the right touch pad will cause
a switch to the corresponding sub-menu. The graphic
representation of the pitch curve appears here; it is
initially only defined by the points "L" and "H":
Pitch
Input
–50%
Curve
Output
–50%
off
Point
?
0%
Normal
Now place point "1" in the centre with a brief tap on
SET
the centre
Pitch
Input
Curve
Output
off
Point
(page 190)
Normal
Always try to make due with these three points initial-
ly; more points can "over-complicate" the matter and
are more of a burden at this point.
0%
The reference point for the hovering should generally
0%
be the mechanical centre position of the pitch stick, be-
cause this position comes closest to the normal control
0%
feel. Although the curve adjustment enables other set-
0%
tings, you must know exactly what you are doing. First
0%
set the pitch stick in the centre. The servos which you
0%
had previously set according to manufacturer specifi-
0%
cations have their levers at positioned perpendicularly
to the servo housing (normally). A hovering pitch value
of 4 ° to 5 ° is now mechanically set at the control rods
off
to the rotor blades. In principle, all known helicopters
fly with this setting.
Then move the pitch stick towards maximum pitch
until the limit position. (The vertical line shows you the
current stick position.) Now change the pitch curve's
point "H" with the selection keys of the right touch pad
such that the main rotor's blades have a maximum
pitch of about 9 °. A value of +50 % should be about
right.
+
key of the right touch pad:
0%
1
0%
1
0%
Pitch
Input
+100%
Curve
Output
+50%
1
+50%
off
Point
Normal
+
Note:
A rotor blade adjustment gage, such as the
Graupner pitch gage, No. 61, is quite useful
for reading the angle.
Now move the pitch stick toward the pitch minimum
position until its limit position. Depending on the abil-
ity of the pilot, adjust the value of point "L" so that the
blade angle of approach is 0 to -4 °. Now a slightly
pitched line arises at the hovering points, the so-
called pitch curve, which can appear as follows:
Pitch
Input
–100%
Curve
Output
–75%
off
Point
1
–75%
Normal
Now you can, if you like, move the marker frame
leftward with the selection keys to the "Curve" line
and after activation of the value field with a brief tap
on the centre
SET
key of the right touch pad, set the
curve function of the mixer to "on".
Programming examples - Helicopter models
1
+
1
+
333

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