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S TRM (Sub Trim)
S TRM (Sub Trim)
This is a programmable function for setting the subtrim values
for each of the servos, allowing you to make fine adjustments
to each individual servo independently of the trim buttons
located on the radio case (which can be adjusted in flight).
We recommend that you first set up the model's servo pushrods
so that the control surfaces are as centered as possible
mechanically (with the transmitter's case-mounted trim buttons
digitally centered) before attempting to adjust them in the
subtrim menu. We also recommend that you try to keep all the
subtrim values as small as possible. If the values are large,
the servo's full range of travel may be restricted.
S REV (Servo Reverse)
S REV (Servo Reverse)
When you first turn on your model, you will immediately see
whether all the control surfaces are moving in the correct
direction when you wiggle the controls. If any are moving in
reverse, you can come to this screen to reverse the throw of the
offending servo.
P MIX (Programmable Mix)
P MIX (Programmable Mix)
In this screen you can activate the ability of the Optic 6 Sport to
create a custom-made, programmable mix of any two servo
channels in which one servo is electronically "slaved" to another.
This is a relatively advanced function.
Optic 6 Sport - Page 22
Setting Sub Trims
At this point you must have your plane in front of you and turned
on so you can actually see when the control services are in
alignment as you change the sub-trim value.
1. Starting with the CH 1 aileron servo, use the DATA buttons
to either increase or decrease the subtrim value until the
control surface is properly aligned on the model.
2. Move over to CH 2 with the right-hand CURSOR button and
align the elevator in the same way.
3. Continue by moving to CH 4 and align the rudder, to CH 6 to
adjust the aileron servo in channel 6 and to CH 5 to adjust
the flap.
Reversing a servo
Let's say your elevator is going down when you pull back on the
joystick-that is definitely not going to be a good situation when
you go to fly your plane! To reverse the elevator servo, come to
this screen and use a CURSOR button to move over to CH 2
and push both DATA buttons simultaneously.. You'll notice that
the symbol "NOR" ahead of CH has changed to "REV"-and that
the servo is now operating as it should on your model. If any
other servos need to be reversed, CURSOR over to that channel
slot and push both DATA buttons simultaneously.
The program also provides a way to change the value of the
response of the slave servo to that of the master.
For example you could slave the elevator servo to the throttle
channel so that when you increase the throttle, a slight
downward movement of the elevator kicks in to automatically
compensate for any up-pitching due to the increased thrust.
Another typical mix might be to mix rudder with the throttle to
reduce yawing. The Optic Sport's mixing program also offers an
advanced function (call TRM P MIX) that, when activated,
allows both servos to be trimmed by the same master servo
trim button on the radio case-a useful option when, for example,
you are using two servos to control a split elevator.
P MIX (Programmable Mix)
Set up a throttle-to-rudder mix
When you apply throttle to a powerful motor, the resultant
torque from the spinning propeller often tends to make the
plane yaw to one side (usually to the left).
This not only interferes with precision aerobatic maneuvers,
but it makes it difficult to keep the model aligned with the
runway during a full-power takeoff. To reduce the "pilot load"
of having to correct the yaw with your left thumb on the rudder
stick, you can use the P-Mix program function to automatically
mix a proportional amount of rudder with an increase of throttle.
Now let's set it up:
1) Enter the Main Function menu and scroll down to the P MIX
screen with the EDIT buttons. Activate the function by pressing
both DATA buttons-"Inh" will turn off and the default screen
shows "CH" with "MAS" blinking beneath. If, instead,
a percentage value is blinking use the right-hand CURSOR
button to scroll over until you get this "CH" and "MAS"
configuration. One of the servo channel numbers will also be
showing-the default is "1".
2) To make the throttle the master channel, push a DATA
button to light up "3". Now push the right-hand CURSOR once
more: "SLV" will light up with a number. Use a DATA button to
change this number to "4". Now the rudder channel is slaved
to the throttle channel.
3) Push the CURSOR button again: MAS 3 and a percentage
value will be blinking. Use the DATA buttons to set the value
of rudder travel to throttle travel-change to a negative value to
move the rudder in the opposite direction if necessary.
You won't likely need more than 15% to counteract the torque,
but only flight-testing will tell for sure.
Optic 6 Sport - Page 23
P-Mix trim:
Set up a double-servo elevator with coordinated trim function
The Optic 6 Sport offers an unusually sophisticated nuance
with its P-MIX function: the ability to trim two servos
simultaneously. This is especially useful if you are using two
elevator servos (one to each half of the elevator). In flight,
if the elevator needs to be trimmed, you can make the
adjustment with the trim button next to the right-hand joystick
on the case instead of having to enter the model setup
programming in order to trim the servos independently.
Lets set this example up:
1) Enter the P MIX screen and select the master and slave
servos (2 and 5 on this radio for split elevators) and then select
the travel value (most likely 100% unless your servo pushrods
are not set up exactly the same way).
2) Now use the Right CURSOR button to move to the P MIX
screen where "TRM" is blinking. The default setting is
"OFF"-turn it to "ON" by pressing the CLEAR button.
3) Exit the menu and you now have a split elevator with trim
function.
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