Code 41 Rudder Throttle Mixing - JR 10X HELICOPTER VERSION User Manual

Code 41
8.10
Rudder Throttle Mixing:
Stunt (Flight) Modes 1–4
The Rudder-to-Throttle Mixing function corrects any under or
over speeding of the engine resulting from load changes placed
upon the engine when the tail rotor control is used.
Rudder throttle mixing, when used in stunt (flight) modes,
enables your model to maintain a constant main rotor RPM when
performing tail rotor maneuvers such as 540 stall turns, pirou-
ettes, pinwheels, fast sideways flight, etc.
The adjustment of rudder throttle mix for use in aerobatics
(stunt modes) varies from that of a hovering rudder
mix set-up since it's necessary for the rudder to increase throttle
in both directions due to the increase in tail blade pitch, which
increases the load or resistance to the engine.
In general, most pilots find that although the throttle must be
increased in both rudder stick directions, it's normal to have a
lesser value in the rudder direction that rotates the model "with"
the torque of the tail rotor.
Note: When using the Rudder
Stunt (Flight) Modes 1–4 only, it is important that the mix is not
also actuated in the normal (hover) mode, since proper adjustment
of the rudder throttle mix for normal mode use varies greatly.
Set Up Tip
A good starting value is approximately 20% left stick, 30% right stick (values
are for clockwise rotation models).
Caution: Be sure to verify before flying that the
rudder throttle mixing is moving the throttle lever in the
desired direction, in the desired flight modes.
You will find this function most useful when performing pirou-
ettes or aggressive tail rotor maneuvers with your helicopter.
This function can be useful either in normal mode, enabling you
to maintain a constant rotor rpm and altitude for precision hover-
ing, or in Flight Modes 1–4 where additional throttle is needed in
both directions to offset the additional loads to the engine when
tail rotor is applied.
Since the adjustment for each of these uses varies, please refer to
the sections following for further information.
Rudder Throttle Mixing:
Normal (Hover) Mode
As mentioned previously, rudder
(hover) mode only enables your model to maintain a constant
altitude and rotor rpm when performing tail rotor maneuvers
such as pirouettes by adding or removing throttle as needed.
10X MANUAL Heli
throttle
Throttle Mixing function for
throttle mix used in normal
When performing tail rotor pirouettes with the tail rotor torque
only (e.g., in the same direction as), the main rotor rpm will have
a tendency to increase due to the "unloading" of the tail rotor,
causing the engine to change speed as well. The opposite effect is
also true: When performing maneuvers against the torque of the
tail rotor, the main rotor rpm will have a tendency to decrease,
causing the engine to lose rpm and causing a loss of altitude.
Given this information, it is necessary to adjust the
rudder throttle mixing so the throttle will increase when the
rudder is moved to increase the tail rotor torque, and decrease
when the rudder is moved with the torque of the tail rotor.
With most helicopters using a clockwise rotation, moving the
rudder stick to the left will decrease the needed throttle, while
moving the rudder stick to the right will increase the needed
throttle.
Accessing and Utilizing the
Rudder Throttle Mix
To access the Rudder Throttle Mix, enter code 41 in the code
number access selection or use the direct mode method.
Your screen will appear as follows:
"ON" is displayed when all
flight mode selections are
Shaded box indicates
set to "OFF," or when a flight
position of stick (control)
mode switch is activated or a
to be adjusted.
flight mode that has been
selected to be "ON"
Touch to Touch
activate each flight the direction of the mix
mode to which you in the assigned stick
want the mix to be position
active
Note: When using the Rudder
normal (hover) mode only, it is important that the mix only be
activated in the normal mode, since proper adjustment of the
rudder throttle mix for stunt mode use varies greatly.
Note: To move the shaded box from the left to the right value,
and vice versa, simply hold the rudder stick in the corresponding
direction.
Set Up Tip
A good starting value for each direction is approximately
10–15%.
Caution: Be sure to verify before flying that the
rudder throttle mixing is moving the throttle lever in the
desired direction in the desired flight mode.
Touch
memorize data and
exit program
Indicates current
mix value
to change Touch the keys to
increase or decrease the
assigned mix values. Press
CL (clear) to return the value
in the shaded area to zero
Throttle Mix function for
to
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