User manual

PIT>>RUDD
Flight-phase-dependent static torque compensation
In the basic transmitter display, use a fi nger or the
provided stylus to touch the gear icon labelled "F":
000 000
000
000
mz
000%
000%
000
000
BATT TIME 00: 01: 23
Starlet
M 2
0:01:23
NORMAL
000:00.0
000:00.0
4.2V
RX TX
RX 00.0V
Touch
The display switches to the blue function menu. Use
a fi nger or the provided stylus to touch the menu item
"PIT>>RUDD":
BACK
SYSTEM
BASE
FUNCTION
Q.Link
PIT.CRV
D/R,EXP
THR.CRV
Gyr/Gover
THR.HOLD
S.Limit
Swash
S.MIX
THR.MIX
Prog.MIX
PIT>>RUDD
Trainer
Telemetry
Touch
A torque compensation curve with a linear mixer ratio
of 0% is uniformly set by default which is necessary for
gyro sensors that operate in heading-lock mode:
NORMAL
Starlet
ENT
000%
000%
000%
L
BACK
IN
OUT
POINT
OFF
INC
DEC
Y-axis
X-axis
ST OFF
CURVE
S
NOTE:
You therefore need to consult your gyro
setting instructions since otherwise you
may make it impossible to fl y your
helicopter.
If you are using your gyro sensor in normal mode or the
sensor can only handle normal mode, adjust the mixer
as follows:
Similar to adjusting the pitch curve, see page 175, the
control curve for the tail rotor can also be defi ned with
up to 7 points. As needed, you can therefore modify
the mixer at any time and specify symmetrical and
asymmetrical mixer ratios above and below the hovering
point.
Starting with -30% at point "L" and +30% at point "H",
adjust the mixer so that the helicopter does not rotate
about the vertical axis, even during long vertical ascents
and descents, as a result of differing main rotor torque
in comparison to hovering. While hovering, only change
the trim using the digital tail rotor trim lever:
NORMAL
Starlet
ENT
+100%
+030%
+030%
H
BACK
IN
OUT
POINT
OFF
INC
DEC
Y-axis
X-axis
ST ON
CURVE
S
In order to reliably adjust the torque compensation, the
pitch and throttle curves must be correctly adjusted; in
other words, the speed must remain constant over the
entire collective pitch adjustment range.
Autorotation setting
In normal fl ight, the tail rotor is adjusted so that it
compensates for the torque of the main rotor during
hovering. It therefore generates a certain amount of
thrust in home position. This thrust is then varied by
the tail rotor control and different mixers for all types
of torque compensation and is adjusted by trim the tail
rotor to accommodate the weather, system speed and
other infl uences.
During autorotation however, the main rotor is not driven
by the motor but according to the windmill principle.
In this context, there is no torque that the tail rotor
must compensate. All of the corresponding mixers are
therefore automatically switched off.
Since the aforementioned thrust is no longer necessary
during autorotation because of the lack of torque, the
basic position of the tail rotor must also be different:
While the motor is switched off, place the helicopter
in a horizontal position. Switch on the transmitter and
receiver, select the Quick Link "autorotation", fold down
the tail rotor blades, and change the mixer settings until
the pitch angle of the tail rotor blades equals 0°. The
tail rotor blades are then parallel with each other when
viewed from the rear.
Depending on the friction and operating resistance of
the gearing, the fuselage may still rotate slightly. This
relatively slight torque should then be corrected using
the tail rotor blade pitch angle. In any case, this value
is between 0° and a pitch angle that is opposite the
direction of the pitch angle during fl ight.
198
Helicopter model function menu - Pitch >> Rudder
S1006_mz-24.3.en.indd 198 17.12.2014 15:22:48