Table of Contents
Advertisement
D/R (Dual Rate)
If this is your first computer radio, you may have never been
introduced to dual rates before. Dual rates-which allow you to
reduce the travel of the aileron, elevator and rudder servos
with the flick of one switch (SW-2 on the Optic Sport) are often
used to tone down the control throws when flying at higher
speeds-without this ability, its possible to be really gentle with
the controls and yet still over-control a fast-moving model.
When you flick on a lower throw rate for the servos, you
instantly reduce the radical response of the model to your
control inputs. This ability is a boon for beginning pilots and
very useful even for experts. The amount of travel reduction
(or increase for wild aerobatics!) may be set anywhere between
0 and 125%. Get to the D/R menu by pressing one of the Up
Down EDIT buttons repeatedly until the D/R dual rate screen
appears, as shown.
Note: if you set the dual rate amount to zero, you will get no
response from that channel, which may cause a crash when
you switch to this rate setting..
1. Press the Right CURSOR button to get the channel "1"
blinking (if it isn't already by default): The default value showing
on the screen should be 100%--but notice the extra little zero
next to the 100. This indicates that the rate is this value (100%)
when the switch SW-2 on the upper right hand corner of the
transmitter case is set in the 0 position (check out the label by
this switch). Flick the switch toward you-the number 1 will come
on next to the 100. For now, leave the rate at 100% in the 0
switch position, but let's change the rate for CH 1 when you
move the switch to 1.
2. With the switch SW-2 forward and "1" showing next to the
default 100 value, reduce the value to 75% by pushing down
on the - DATA button. Now whenever you move switch SW-2
to the 1 position, the travel of the ailerons (note that the second
aileron is automatically affected) will be 75% of the "normal"
100% value. When flying the plane you will quickly see if 75%
is enough of a reduction-if not, you can always come back and
change it in this screen. (This is true, or course, for all the
parameters we are going to establish in this menu set).
Optic 6 Sport - Page 20
Setting up dual rates on the elevator
Press the Right Cursor key one time to get Channel "2" blinking.
With the switch in the "1" position, set the elevator dual rate to 75%.
Setting up rudder dual rate
Press the Right Cursor key again to get "4" blinking.
Now set the rudder dual rates in the same way you set the
ailerons and elevator in the previous steps.
Note: If you quickly want to get back to the default 100%, press the
Clear button
Note: Once each flight condition is activated, you can set D/R for each
flight condition respectively.
EXP (Exponential Rate)
EXP (Exponential)
!
Tip
Exponential ("Expo") is great for beginners and highly
recommended. Try it out. Your flying will be smoother and
more controllable, reducing the stress most beginners feel
when learning to fly.
This function-which may also be new to first-time computerized
radio users-allows you to choose the exponential value for the
ailerons, elevator and rudder. Applying exponential enables
you to "soften" the stick throws to take out the "twitchiness" of
your model's response to your control inputs.
The greater the negative value you specify, the less effect the
sticks have around their center points-and the less effect your
twitchy fingers have on your model's performance. (Conversely,
positive exponential makes the servos very sensitive around
neutral and soft at the extreme stick throws-an effect best left
to the experts!) Like the dual-rate programming, you can apply
or remove this function with switch SW-2.
Servo
Response
Much less response
around neutral (Compare
Normal
with Normal line)
linear
response
Negative Exponential
Stick Motion
-75%
gives smaller response for
Increasing negative
same stick motion
-50%
exponential
around neutral
-25%
(shallower around
neutral)
0%
(Linear)
Note: The values you set for exponential are highly dependent
on both the model and pilot's preference.
We recommend a start value of about -25 to -35%, and, after
test flying, slowly increasing the number until things feel "right".
Obviously this depends on the pilot and model so go ahead and
fly it with Expo only on one side of the switch, turn it on and off
during flight, and change the values to suit yourself.
Or don't use it at all if you don't like it - it's not for everyone.
Optic 6 Sport - Page 21
Setting up exponential
1) Push the CURSOR buttons repeatedly until the channel "1"
is blinking.
2) The default exponential value is 0%. To create some
softness around the neutral position of the stick, we want to
apply some negative exponential. With switch SW-2 set in
the "1" position, push the - DATA button until the screen
indicates -25%--a typical exponential value for ailerons.
You can, of course, increase or decrease this amount as
you get a feeling for how the plane flies.
3) Move over to CH 2 with the CURSOR and set -25% on the
elevator; move to CH 4 and set -25%--again these are
arbitrary starting points subject to your personal preference.
Notice that when you push the SW-2 switch back to its "0"
position all the exponential values return to their default zero
settings.
4) If you want, you can have some "expo" on any or all three
of these channels by setting a value with the switch in the
"0" position. To quickly get back to the default 0%, press the
Clear button.
5) Return to the regular operating mode by pressing the two
EDIT Up Down buttons simultaneously.
Note: You should understand that you won't see changes in your
model's servo response unless you move the sticks.
To get a feel for how exponential works, hold partial stick and watch the
control surfaces as you switch the Expo on and off
(one side of the switch should be set to zero expo in this case).
Note: Once each flight condition is activated, you can set EXP for each
flight condition respectively.
Advertisement
Table of Contents
