HITEC OPTIC 6 - PMX1, PMX2 - Programmable Mixes 1 and 2

For more information - www.modelflight.com.au
A
ir
p
lane Model Function Descri
p
tions
5. Now press the Cursor right key one time to get to the
elevator
setting menu (a small arrow will appear over the
number
2 in the display). Press the Data +Increase or
-Decrease keys to set up the throws for the elevator as
desired.
Move the left lever and be sure the elevator goes
down with crow. If it doesn't, change the sign (this may
depend
on servo orientation). You probably should not use
much
elevator motion until you determine if Crow changes
the
trim.
6. Now press the Cursor right key one time to get to the
second
aileron setting menu (a small arrow will appear over
the
number 5 in the display). Press the Data +Increase or
-Decrease keys to set up the throws for the second aileron
as
desired. Move the left lever and be sure the second
aileron
goes UP with crow. If it doesn't, change the sign
(this may depend on servo orientation). Be sure to set both
aileron
offsets to be the same.
7. Now press the Cursor right key one time to get to the flap
menu
(a small arrow will appear over the number 6 in the
display).
Press the Data +Increase or -Decrease keys to set
up
the throws for the flaps as desired. Move the Left lever
and
be sure the flaps go down with crow. If they don't,
change
the sign (this may depend on servo orientation).
You'll
probably want as much flap motion as possible - 90 is
great
if you can get it. Like the ailerons, you set both flap
offsets
at the same time.
8. If you can't get enough travel, go to the EPA menu and be
sure
channel 6 is set as high as possible to get 90 ° flap
travel.
Of course, you can reduce them to get the amount of
travel
that you'd like at full crow in the EPA menu, but this is
better
done in the Crow menu as given in the previous step.
It
may be helpful to use long servo arms on the flap servos to
increase
their effective throw.
For starters, use zero or very little elevator compensation
until
you fly and determine what is needed: if the model
pitches
up with crow, add down elevator compensation and
if
it pitches downwards, add some up compensation. Make
only
small changes in compensation because it has a big
effect
on trim.
Remember to try your crow setup out at higher altitudes to
verify
that the trim doesn't change rapidly. If you want to
steepen
the descent, increase the flap downward deflection
while
increasing the up aileron movement.
Caution: when setting up crow, do not call for too much aileron "up"
travel, or you'll lose roll authority, and this occurs at a crucial
time, when your model is flying relatively slowly on a landing
approach. Always make changes in small increments, don't
try to do it "all at once."
PMX1, PMX2 - Programmable Mixes 1 and 2
Your Optic system contains TWO independent programmable
mixers
( PMX1 and PMX2 ) with unique capabilities. You may
use
mixing to correct unwanted tendencies of the aircraft during
aerobatics,
takeoff, or landing, or some special maneuver of
your
own choosing. Each mixer may be programmed to do
things
that are not built-in programs. This makes them useful
for
all sorts of different things. Note that the mixers may be
programmed
to be turned on by flipping a selected switch, or
to be on all the time.
You may also use the mixers for correcting unwanted flying
tendencies,
like automatically applying a bit of rudder with
throttle
to account for torque/P-factor effects, to a corrective
elevator
motion during knife-edge flight to correct for an
undesired
tucking tendency (the latter is described in the
ACGL model setup section and below).
Using the Programmable mixers
1. Call up the mixer screen by repeatedly pressing one of the
Edit Up Down keys until a PMX window appears. The
default
is for the function to be inhibited. To activate, press
the
Active/Inhibit (Clear) key. This will cause the INH
display to change to a display showing 100%, Master and
Slave
indicators, and a flashing ON or OFF depending on
the
position of the ON-OFF switch that is selected. See the
Switch
Select instructions on P. 39 for information on how to
select the ON-OFF switch. Be sure the PMIX is ON so you
can
see the results of your programming. The default switch
for
PMIX 1 is SW-3 and default for PMIX 2 is SW-1.
2. Now you'll select the Master channel for the mixing, the
channel
that causes the mixing to occur. Press the Cursor
Right key to get the master channel indicator MAS flashing
on
and off, then press the Data +Increase or -Decrease
keys to move the top arrow over the number of the desired
master
channel, 1 - 6.
A
irplane Mode
l
Function Description
s
-
Pa
g
e 38