User manual

322
Programming examples - Helicopter models
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« (beginning on page 188)
C1
C1
Pitch
Throttle
Tail
Tail
0%
Roll 0%
Throttle
Roll
Throttle
Tail
Nick
Nick
Throttle
Tail
Swash rotation
Swash limiter
0%
0%
0%
0°
OFF
Gyro suppress
0%
Gyro gain
0%
The “Pitch” function appears right in the first line. A
tap on the center 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”:
Input
Output
Point
?
0%
0%
0%
Pitch
Curve
off
Now place point “1” in the center with a brief tap on
the center SET key of the right touch pad:
Input
Output
Point
1
0%
0%
Pitch
Curve
off
0%
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.
The reference point for the hovering should generally
be the mechanical center position of the pitch stick,
because this position comes closest to the normal
control feel. Although the curve adjustment enables
other settings, you must know exactly what you are
doing. First set the pitch stick in the center. The ser-
vos which you had previously set according to manu-
facturer specifications 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 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:
Input
Output
Point
H
+100%
+50%
Pitch
Curve
off
+50%
Note:
A rotor blade adjustment gage, such as the Graupner
pitch gage, order 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 abi-
lity 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:
L
–100%
–75%
Pitch
–75%
Input
Output
Point
Curve
off
Now you can, if you like, move the marker frame
upward with the selection keys to the “Curve” line
and after activation of the value field with a brief tap
on the center SET key of the right touch pad, set the
curve function of the mixer to “on”.
L
–100%
–75%
Pitch
–75%
on
Input
Output
Point
Curve
If you now switch to autorotation phase – at the bot-
tom left of the display the flight phase name “Autorot”
appears – the “old” pitch curve is again:
?
0%
0%
0%
Pitch
Autorot
Input
Output
Point
Curve
off
Now carry out the same setting as before in the nor-
mal phase. Only at point “H“ – at maximum pitch – is it