Instruction manual

Rudder Throttle (R->T) mixing is used to maintain
rotor speed so that altitude is kept constant when the
rudder stick is operated in hover. The reason for this
mixing is that when rudder is commanded, the tail rotor
consumes a little more power, which reduces the power
at the main rotor and the helicopter drops or climbs.
For helicopters with normal rotor rotation, commanding
right rudder (which requires more power) should also
increase throttle slightly, while using left rudder (requires
less power) should decrease the throttle slightly. R->T
mixing is handy for hovering but may also be used in
540 stall turns, hovering eights, nose-in circles, Top
Hats, Pirouettes, and other aerobatics.
Setting Up Rudder-> Throttle Mixing
1. Press one of the Up
Down Edit buttons
repeatedly to select the
R->T window. The function
is activated by switching the
Flt. Mode switch all the way back. It's set to 0% on both
sides so there is no differential.
2. To set the mixing amount for the left rudder, hold the
Helicopter(HELI) Section
42
These conditions are activated whenever the model
memory is chosen to be HELI type.
These flight conditions are switched on as follows:
NOR: ON when Flt. Mode Switch is back.
ST1: ON, when Flt. Mode Switch centered
ST2: ON when Flt. Mode Switch is forward.
ST3: ON when Flt. Cond Switch is forward.
As these functions are
switched on or off, ST3 =
HOLD has highest priority,
followed by ST2 and ST1.
Regular settings (NOR)
occur when all of the others are off. You can see which
condition your transmitter is currently in by viewing the
display. The current condition is the one flashing on and
off in the lower right of the TRIM display.
EPA - End point adjust
See ACRO instructions on page 18.
D/R - Dual Rates
Refer to ACRO instructions on page 18.
EXP - Exponential
See the ACRO instructions on page 20.
STRM - Subtrim
Refer to the ACRO instructions on page 21.
REV - Servo Reverse
See ACRO instructions on page 22.
T.CUT - Throttle Cut
Described in the ACRO instructions on page 29.
PMX1, PMX2 - Programmable Mixing
See ACRO instructions on page 22. There are two
programmable mixers in the helicopter menus. PMIX-1
is operated with the Gear switch and PMIX-2 is
selected with the Rudder D/R switch.
R->T - Rudder Throttle Mixing
rudder stick to the left side (display shows L/U), and
press the Data Decrease key. Continue reducing the
percentage until you reach about 10%. If for some
reason you want a 0% setting, press the Active/ Inhibit
(Clear) key.
3. Input the mixing amount for right rudder by moving the
rudder stick to the right (display shows R/D), and press
the Data Increase or Decrease key to reach about 10%.
4. Note that R->T mixing may only be set up in the NOR
menu.
GYRO - Gyro settings
Gyro settings are used to automatically control the gyro's
gain in different flight modes. It may be set to different
values in NOR, ST1, ST2, and ST3 flight modes, allowing
you to pick the gain you need for each circumstance.
The Gyro settings control the output at receiver CH7.
Using Gyro Settings
1. Press one of the Up Down Edit buttons repeatedly to
get to the GYRO menu.
To begin with, the function
is already activated, but it's
set to 50% in all four flight
modes.
2. To set the mixing amount for the normal (NOR) flight
condition, flip the Flt. Mode switch all the way back.
NOR will be flashing on and off. Set the percentage to
yield the desired gyro gain (this is usually a high-gain
setting). If for some reason you want a 0% setting, press
the Active/Inhibit (Clear) key.
3. Flip the Flt. Mode switch to its center position. ST1
will be flashing on and off. Set the percentage to yield
the desired gyro gain in this flight condition (this will
usually be a lower-gain setting for reduced damping in
stunts).
4. Flip the Flt. Mode switch all the way forward. ST2 will
be flashing on and off. Set the percentage to yield the
desired gyro gain.
5. Now flip the Flt. Cond. switch fully forward. You may
now input a setting for ST3.
6. Make some test flights to try these settings out. Take
note of when more gain is need, and when less gain is
needed. You can adjust all of the gyro settings in each
flight condition to suit your machine.
Note: this function only works with dual rate heading hold
gyros.
HOLD - Throttle Hold
The Throttle Hold function moves the engine throttle
servo to a selected position near idle, and disengages it
from the throttle stick. It is commonly used during auto-
rotation, and activated with the Flt. Cond. switch on the
right rear of the transmitter. You can set the throttle posi-
tion to be held over a -50 to +50% range centered about
the throttle idle position. Activating throttle hold also
disables revolution mixing (RVMX).
Setting Up Throttle Hold
1. Press one of the Up Down Edit buttons until the H0LD