JR XP810-3 - Page 84

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4
.
1
0 Inve
r
ted Switch,
(
Function Mode
)
cont.
Press the UP and DN keys
simultaneously to enter/exit
the Function Mode
Press the DN and Select key
s
simultaneously to access th
e
Function Mode List Dis
p
la
y
To Revolution/Acceleration
UP
DN SELECT CH CH CLEAR
Press to inhibit the
Mixin
g
Function
To Pitch Curve
function
Press the + or - key
s
to increase/decreas
e
the offset value
Inverted Switch
Function
4
.
1
1 Revolution/Acceleration Mixin
g
(
Function Mode
)
The Revolution Mixing Function mixes tail rotor input with the
Throttle/Collective Function 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 tor que reaction varies with dif ferent power settings, it is
necessar y to var y the tail rotor pitch at the same time. The
XP8 10 3 of fers two (2) 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, or Up, mixing adjusts the tail rotor compensation for the
mid to high throttle/stick setting, and the D, or Down, mixing
adjusts the tail rotor compensation for the mid to low throttle/stic
k
setting.
In the Function Mode, use the UP and DN keys to select
Revolution Mixing and access by pressing the UP and DN keys
simultaneously .
Setting Up Revolution Mixing
First, adjust the helicopter so that it will hover in a neutral position
with the tail rotor trim at center. Next, establish the
helicopter int
o
a stable hover; then steadily increase the throttle to initiate a
stable 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 will climb with no tendency to
tur n
or rotate. At a safe altitude, close the throttle and the helicopter
will descend with the body tu
r
ning in the same direction as the
main rotor. Increase the D, or Down, mix until
the helicopter
descends with no tendency to tur
n or rotate. When attempting
this procedure, throttle stick movements should
be slow, and the
initial acceleration and deceleration swings
should be
overlooked.
CH CH
Press either CH key
to move the arrow to the
position to be activated:
NORM Normal
UP Up
DN Down
STNT
Stunt
UP Up
DN Down
Once a mixing value has been
entered, either an "L" or "R" will
appear on the screen: "L" is for
left revolution mixing "R" is for
right revolution mixing
mixin
g
values
Current Offset
V
alue
Press the UP and DN keys
simultaneously to enter/exit
the Function Mode
Press the DN and Select key
s
simultaneously to access th
e
Function Mode List Dis
p
la
y
To G
y
ro Sensitivit
y
UP
DN SELECT CH CH CLEAR
Press to reset
function
To Inverted Switch
function
Press either CH
key to move the
arrow to the
position to be
ad
j
usted
Press the + or - key to
set the mixing value
(
L or R, 0% -125%
)
mixing value to
factory preset
(0%) at the arrow
p
osition
HELI 84