User manual

Hover settings
The model should lift off the ground when the pitch
control stick is approximately in center position and
hover at the set speed. If this does not occur, proceed
as follows:
1. The model lifts off when the pitch control stick is
past center position:
a) The rotary speed is too
low
Solution: Increase the
value of point "1" in the
THR.CRV display.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Hover
point
b) The rotary speed is too
high
Solution: Increase the
pitch angle of the rotor
blades by increasing the
value of point "1" in the
PIT.CRV display.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Hover
point
2. The model lifts off before the pitch control stick
reaches center position:
a) The rotary speed is too
high
Solution: Reduce the
carburettor opening by
reducing the value of
point "1" in the THR.CRV
display.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Hover
point
b) The rotary speed is too
low
Solution: Reduce the
pitch angle of the rotor
blades by reducing the
value of point "1" in the
PIT.CRV display.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Hover
point
Important:
Perform these adjustments until the model
hovers at the correct rotary speed when the
throttle/pitch control stick is in center position.
All the other adjustments of the model parameters
depend on this being performed correctly.
Standard adjustments
Standard adjustments are performed after the
above-described basic settings where the model hovers
at the provided speed in normal flight when the throttle/
pitch control stick is in center position. The standard ad-
justments are made to allow the model to hover and
perform roundtrips in all phases at a constant rotary
speed.
Adjustments for climbing
A combination of the throttle/hovering setting, the
pitch setting for the hovering point and the maximum
pitch position (point "H") allows you to easily achieve
a constant rotary speed from hovering to maximum
climbing.
First, perform a slow vertical climbing flight by moving
the pitch control stick to the end position. The motor
speed should not change in comparison to the hover
setting.
If the speed decreases while climbing even though the
drive is at maximum output and no additional power can
be provided, reduce the maximum blade angle while
the pitch control stick is fully deflected, that is, the value
of point "H". Conversely, increase the pitch angle if the
motor speed increases while climbing. In the graph of
the PIT.CRV display, move the vertical line to point "H"
with the pitch control stick, and correspondingly change
its value.
This picture only shows
changes of the maximum pitch
setting.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Hover
point
Then make the model hover which should occur when
the throttle in the center position. If the pitch control stick
needs to be moved out of the center position toward
higher values for the hovering point, compensate this
deviation by slightly increasing the pitch value during
hovering (i.e., from point "1") until the model hovers
when the control stick is in the center position. If the
model hovers below the center position, correspondingly
reduce the pitch angle.
In certain circumstances, it can also be necessary to
adjust the carburettor opening at the hovering point
(point "1") of the THR.CRV display.
This picture illustrates the
change of the hovering point,
that is the minimum and
maximum pitch were left at
-100 % and +100 %.
+100%
-100%
OUTPUT
2 3 4 51
Control travel
Modify these settings until the speed remains constant
over the entire control travel between hovering and
climbing.
Adjustments for descending
Descent is adjusted so that the model descends
from forward flight at a great height while the pitch
is completely pulled back. Set the minimum pitch
(point "L") so that the model descends at an angle of
184
Helicopter model function menu - THR.CRV
S1006_mz-24.3.en.indd 184 17.12.2014 15:22:41