Manual Hitec OPTIC_6 (page 28 of 30) (English)

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Menu Descriptions - HelicopterMenu Descriptions - Helicopter

Revolution Mixing Programming

1. Call up the revolution mixing screen by repeatedly pressing

one of the Up Down Edit buttons until the RVMX window

appears. The function is active with 0% mixing turned on.

Put the throttle stick to its idle position.

Swashplate Programming

1. Consult your model's setup instructions. If three servos are

needed to move the swashplate in a 120

CCPM set-up,

go to the model setup instructions (page 21) and select the

120

swash type.

2. With all the servos hooked up, and the transmitter and

receiver turned on, move the throttle/collective stick up and

down. The swash should move up and down with no

rotations. Move the aileron stick left and right. The swash

should tilt left and right without pitching or rising. Move the

elevator stick. The swash should tilt fore and aft with no

rotations. If there are rotations when collective is moved, or

the swash moves up and down with aileron or elevator, you

need to adjust the settings in the swash menu.

3. If the servos do not all respond in the same direction for

collective or opposite directions for aileron and elevator, you

will need to reverse one or more of them in the reversing

menu (REV). It may take a little trial and error trying different

combinations of normal and reverse rotation to get the servos

to respond properly. Don't worry about the direction they

respond, just that they all move the same for collective and

tilt for aileron and elevator.

2. Now press the Data +Increase key. This will increase the

percentage of RVMX mixing for the low side of throttle. You

may set a value of 0% to 100% for this side. If you wish to

return the mixing percentage to the default 0% value, press

the Active/Inhibit (Clear) key.

3. Move the throttle stick to a position above half-throttle, and

change the percentage number to suit.

4. Now verify that the rudder responds both the correct

direction and amount for travel on both sides when throttle is

commanded.

5. Set up the RVMX values for the other flight conditions (ST1,

ST2) by flipping the Flt. Mode (SW-3) switch and repeating

these procedures.

See the instructions on page 41.

RVMX - Revolution mixing

FAIL - Failsafe

The swashplate menu is intended only for helicopters whose

collective pitch is controlled by more than a single servo at a

time, and is sometimes referred to as CCPM (Collective &

Cyclic Pitch Mixing). The Optic contains settings for 120

swashplates. Consult your model's setup instructions to find

out whether you need special swash settings.

The swashplate menu is used to control the response of all

three collective servos as a group. It should NOT be used for

reversing or individual servo travel adjustment. Perform these

settings in the REV and EPA menus respectively.

When you move the collective stick, all swashplate servos

should move in the same direction and the same amount to lift

or drop the swashplate without tilting. If the swashplate should

tilt to one side when you command collective, one or more

servos is moving the wrong direction or the wrong amount, and

must be adjusted in the SWAH menu. If the swashplate moves

down when pitch should be increasing or vice versa, change

the sign in front of all three servos from (+) to (-) or vice versa.

Note that there is no SWAH menu when the NOR menu is

selected, but the 120

swash type does contain the SWAH

menu. The swash default settings are shown below.

SWAH - Swashplate adjust (120 °swash only)

The Hovering Throttle lever may be used to adjust the throttle

servo's position around hover without affecting main rotor pitch.

It's handy to make up for changes in rotor speed caused by

variations in temperature, humidity, or other conditions. To

change the hovering throttle setting, simply move the Hovering

throttle lever (Left Lever) to get the desired setting. As shown

in the figure, moving the lever has the largest effect in the

hovering region and leaves the endpoints alone. Center this

lever before you set neutrals or input throttle curves.

Hovering Throttle Adjustment Lever (Pilot Control)

The Hovering Pitch lever may be used to trim the collective

pitch servo(s) near hover without affecting throttle. Like

hovering throttle, it's handy to make up for changes in rotor

speed caused by variations in temperature, humidity, or other

conditions. You can adjust the hovering pitch value simply by

moving the Hovering pitch lever (Right Lever). Like hovering

throttle, this lever only works near hover and tapers off at either

end of throttle. Center this lever before you set neutrals or

input throttle curves.

Hovering Pitch Adjustment Lever (Pilot Control)

120'NOR

4. Call up the swash screen by repeatedly pressing one of the

Up Down Edit buttons until the SWAH window appears.

The function is automatically active when you select 120'

mixing in the model setup menu.

5. If all the servos raise the swash with increasing collective,

go to the next step. If they lower the swash, press the

Cursor Right key twice to get to the collective setting menu

(the arrow appears over the number 6). Now press the Data

-Decrease key until the sign is reversed in front of the

percentage value. Now the swash should properly respond

to collective. If you've done the wrong thing, you can reset

the percentage by pressing the Active/Inhibit (Clear) key.

6. If all the servos tilt the swash to the right with right aileron

stick, go to the next step. If they tilt the swash to the left ,

press the Cursor Right key once to get to the aileron setting

menu (the arrow appears over the number 1). Reverse the

Now the swash should properly respond to aileron.

7. If all the servos tilt the swash aft with up elevator stick, go to

the next step. If they tilt the swash forwards, press the

Cursor Right key once to get to the elevator setting menu

(the arrow appears over the number 2). Now press the

Data -Decrease key until the sign is reversed in front of the

percentage value. Now the swash should properly respond

to elevator.

8. Double check that all three functions, collective, aileron, and

elevator, produce the desired result on the swashplate. Do

not set any SWAH values to 0% or you will disable the

response to that control!

High

Throttle Servo Response

Full

Pwr

Idle

Changing the

HV-T value

moves the

throttle response

above or below

the straight line

Low

Hover

Throttle Stick Motion

Changing the

Hovering Pitch

value moves the

pitch response

above or below

the straight line

High

Low

Hover

Throttle Stick Motion

Collective

Pitch Servo Response

Max

Pitch

Min

Pitch

Menu Descriptions - Helicopter - Page 55Menu Descriptions - Helicopter - Page 54

The revolution mixing function mixes pitch commands into

rudder (pitch rudder) in order to suppress the torque

generated by changes in the main rotor's pitch angle and

rotational speed. You can input independent values for

revolution mixing above and below one-half throttle for each of

the NOR, ST1, and ST2 flight conditions. Revolution mixing is

disabled whenever throttle hold (ST3, operated by switch

SW -1)ison.

For a clockwise-turning rotor, revolution mixing should apply

right rudder when pitch is increased; for a counterclockwise-

turning rotor, the opposite should occur. Remember to set the

value for both sides of the throttle stick's motion.

Revolution mixing has no preprogrammed values input at the

start. You will need to input values for your helicopter as

described in the setup example.

Note: A procedure for adjusting revolution mixing is given in a

table on page 56.

CH1 +70%, CH2 +70%,CH6 +70%No SWAH menu

Flashing

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