REVO.MIX/Revo Mix Function: Non Heading Lock Gyros Only
H-27
The Revolution Mixing function is designed for use
with conventional “Rate” gyros only, and mixes tail
rotor with the Throttle and Pitch Curve functions to
counteract torque from the main rotor blades. When set
up correctly, the helicopter should climb and descend
without a tendency to yaw in either direction. Because
torque reaction varies with different power settings, it is
necessary to vary the tail rotor pitch at the same time.
The X9303 2.4 offers two separate revolution mixing
programs, with independent up and down mixing for
each—one for Flight mode position N and the other for
Stunt 1 and Stunt 2 positions. The U (Up) mixing adjusts
the tail rotor compensation for the mid to high throttle
setting and the D, or down, mixing adjusts the tail rotor
compensation for the mid to low throttle setting. Thus,
if you were to move the throttle from the low to high
position, the tail rotor servo would move from D through
Hover (mid) and to the U setting.
Note
: A letter will appear directly to the right
of the
REVO.MIX
on the top of the LCD to
indicate the current throttle stick/mix position
(U for Up, D for Down).
Accessing the Revolution Mixing Function
1. Place the transmitter switch in the ON position.
2. Press the
LIST
key to enter the
Function Mode
.
3. Move the
Rolling Selector
to highlight the
REVO.MIX
function, then press the
Rolling
Selector
to access.
4. Move the
Rolling Selector
to highlight the desired
Revo Mix value to be adjusted. Press the
Rolling
Selector
to open the desired value. Rotate the
Rolling
Selector
to increase or decrease the value as needed.
5. Press the
CLR
key to reset the values to 0% if needed.
6. To exit the Revolution Mixing function, move the
Rolling Selector
to highlight
LIST
, and press.
Setting up Revolution Mixing
Set up the helicopter so that it will hover with the tail
rotor trim centered. Establish the helicopter into a
stable hover, then steadily increase the throttle to
initiate a steady climb. The body of the helicopter will
move in the opposite direction to the main rotor rotation.
Increase the U, or Up, setting until the helicopter
climbs with no tendency to turn. At a safe altitude,
close the throttle; the helicopter will descend and the
body will turn in the same direction as the main rotor
rotation. Increase the D, or down, mix until the helicopter
descends with no tendency to turn. Throttle stick
movements should be slow, and the initial acceleration
and deceleration swings should be ignored.
When throttle is in the hold position (autorotation),
revolution and acceleration mixings are off. The
Acceleration Mixing function is provided to
compensate for the main rotor acceleration (and
deceleration) torque. The magnitude and duration
of the signal to the tail rotor depends on the rate of the
throttle changes. Thus, quick, jerky throttle inputs will
yield more noticeable tail compensation.
[REVO.Mix]◊D
NORM Up
10%
Dn
10%
STNT Up
5%
Dn
5%
