HITEC OPTIC 6 - Page 19

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Sim
p
le Transmitter Setu
p
-
Aerobati
c
Air
p
lane
(
ACGL Menu
)
29. For the throttle, we recommend not setting a subtrim at this
time.
You will use the trim tab on the transmitter for setting
your
idle RPM. To shut off the motor you will use the
Engine
Cut function. In this way, you don't lose your
carefully-set
idle position.
30. Most people set up their engines to idle with the throttle
trim
near center, so that there is room for changes due to
humidity
and other factors.
31. The Optic provides a special throttle trim function which
allows
the throttle trim lever to work at low throttle levels,
but
disables it at high throttle.
32. Repeat the subtrim adjustment with the rudder ( CH4 ),
gear
( CH5 ), and 2nd aileron channel ( CH6 ). As before,
first
set them mechanically, then adjust the electronic
settings.
Be sure you have selected the appropriate
channel
number each time.
33. Servo EPA (End Point Adjustment) . Now we'll go through
and
set the servo travels for each channel. This is both
helpful
and important, because you can set the throw of
each
servo, in each direction, so that there is no binding.
Eliminating
binding is important because it causes very
high current drain, and can lead to a battery dying
prematurely.
Another use for the EPA function is to adjust
the
model's total throws to match the recommended control
motions
specified on the plans or instructions by the
model's
designer.
34. To set travels, get to the EPA menu by pressing one of the
Up Down Edit buttons repeatedly until EPA appears. In
sequence,
we'll set right aileron right travel, right aileron left
travel,
up and down elevator travels, right and left rudder
travels,
open and closed throttle positions, and left aileron
travels.
Changes from L/U to
R/D with AIL stick motion
Flashing
35. When you reach the EPA menu, you'll see the screen as
shown.
The channel indicator is above numeral 1 for right
aileron,
the percent symbol will be flashing, and you'll
notice that you can change the L/U indicator to R/D (or vice
versa)
by moving the aileron (right) stick. You are about to
see
that this is how you set the travel directions
independently
for each stick motion.
36. To set the RIGHT aileron motion, move the aileron stick all
the
way to the right and hold it. The letters " R/D " should
appear
next to the flashing percent sign, meaning you are
setting
either Right or Down travel (with ailerons it's right or
left
only, but the display is set up to use the same indicators
for
elevator and throttle, thus the dual meanings for the
letters).
Now if your servo is stalled or binding, you'll hear
a
buzzing sound. Hit the minus -Decrease Data key until
the
buzzing stops. If the servo is not buzzing, leave the
setting
at 100%. If you can, choose a location for the
pushrod
on the servo arm so that the throw is adjusted in
the
90-100% range.
37. To set the right aileron's LEFT motion, move the aileron
stick
all the way to the left and hold it. The letters " L/U "
should
appear next to the flashing percent sign (as shown
in
the figure above). Again listen and hit the -Decrease
Data key until the buzzing stops. If the servo is not buzzing,
leave
the setting at 100%. (Remember, you're only setting
the
right aileron travel. You set the other aileron's travel in
channel
6's EPA.)
38. To set the UP elevator motion, press on the Right Cursor
key until the indicator moves over channel 2. Now move
the
right stick all the way to the transmitter bottom and hold
it.
The letters " L/U " should appear next to the flashing
percent
sign. Again listen for a buzzing sound to indicate
the
servo is stalling, and hit the -Decrease Data key until
the
buzzing stops. If the servo is not buzzing, leave the
setting
at 100%.
Changes from L/U to
R/D with ELE stick motion
Flashing
39. Repeat the previous step for DOWN elevator by moving
the stick all the way to the top of the transmitter, full "down"
elevator.
Check for binding and adjust the percentage as
before.
40. To set the throttle position at IDLE, first return to the regular
display
and set the throttle trim to +25%. Then go back to
the
EPA menu and press the Right Cursor key until the
arrow
moves over channel number 3. Now move the
throttle stick all the way to the transmitter bottom and hold it.
The
letters "L/U" should appear next to the flashing percent
sign.
Listen for a buzzing sound to indicate servo stalling,
and
hit the -Decrease Data key until the buzzing stops.
Change
the setting to nearly - but not completely - close
the throttle (engine idle). Later you may increase or
decrease
this number so you can't accidentally shut off the
engine
using the trim tab.
Sim
p
le Transmitter Setu
p
-
A
erobatic
A
ir
p
lane
(
ACGL Menu
)
-
Pa
g
e 19