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Tip
Optic 6 Sport - Page 34
CAMB (Wing Camber)
CROW (Glide-Path and Airspeed Control)
CROW (Glide-path and airspeed control)
(CROW raises the ailerons and lowers the flaps when you move
the left-hand joystick toward the bottom of the transmitter case)
In this screen you can activate the CROW air-brake and glide
path control function and set the values for the aileron, flap and
elevator servo movements. The more CROW you apply during
the landing approach (with the left-hand joystick), the more the
glide path steepens and the glider slows down. Because you
can regulate the amount of CROW, you can precisely control
where and how slowly the glider lands-an important factor for
landing on limited-length runways (gliders are generally a lot
more "slippery" than power planes!) and in contests where you
are rewarded points for landing on a target.
Setting up CROW
1) Activate the function by pressing both DATA buttons
simultaneously.
2) Watching the motion of the control surfaces on your model,
set the value for each of the servos with the left-hand joystick
pulled all the way to the bottom of the transmitter case.
Begin with the aileron servos in CH 1 and CH 5: Unless the
servos buzz and stall, set both ailerons to rise to approxamatly
50% of their travel. Don't make this value too large, as you still
need to control the aircraft's roll rate with the ailerons.
upward (Note that you can go to a negative value % to
reverse the direction of the movement of one of the aileron
servos if necessary).
3) Set the flap servo on CH 6 to 75% of their travel (If you have
two flap servos, they should be connected with a Y-harness
to the channel 6 slot on the receiver)
4) Finally, curser to CH 2 and set the elevator travel value so
the elevator moves down just a bit for pitch control: 15% is a
good starting point, though in-flight testing is necessary for
making true, final adjustments.
SAFETY WARNING: When checking out the in-flight response
of your model to the crow settings, be sure to first gain at least
200 feet of altitude to allow time for you to recover from any
loss of control.
CAMB (Wing camber)
While the Camber function also appears in the ACRO menu,
the use of this feature is significantly different for Sailplanes
than it is with Power planes. Please refer to the instructions
below to understand how to make the most effective use of
Camber on your Sailplane.
A solid understanding of the Flight condition feature will help
when programming wing Camber.
When flying gliders featuring modern, thin airfoils the ability to
change the shape of the airfoil by reflexing (raising) or
cambering (lowering) the trailing edge in combination with
making simultaneous, slight changes in elevator trim is crucial
to optimizing the performance of the model in a variety of flight
conditions and tasks. The Optic Sport offers a selection of up
to four flight condition modes in which you can program varying
amounts of aileron, flap and elevator trim (as well as dual-rate
and exponential values). These modes are activated by either
switch SW-3 or SW-1.
A typical example for setting up a discus-launched glider for
optimum performance would consist of these three flight modes
(which are all assigned to SW-3):
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Tip
You must have A.DIF activated for ch. 5 to appear on the
CROW screen
