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ELVN (Elevon Mix)

FLPN (Flaperon)

V.TAL (V-Tail)

If you are setting up a tail-less delta or flying wing aircraft, you can use this program to activate the
pre-programmed elevon mix that mixes the output on the CH 1 aileron and CH 2 elevator servo
channels. (As you will notice in the servo connection chart, you plug one aileron servo in the receiver's channel 1 slot and the other aileron
servo into channel 2-the slot that usually feeds the elevator.)
This is necessary because on these wing types the ailerons must double as elevators.

ELVN (Elevon mix)

This function activates another aileron servo (on channel 6 when in the ACRO menu) so that both
ailerons can be slaved together to create a flaperon.
This allows both ailerons to move together as flaperons for camber control or independently as usual
for roll control. In this menu you can also set individual travel values-upward and downward-for each
aileron to create aileron differential.
Being able to move an aileron less in one direction (usually downwards) helps reduce yaw in turns
(and therefore unnecessary drag.)

FLPN (Flaperon)

1) Activate the elevon function by pressing both DATA buttons when you are in the ELVN screen. Now check your model to see what

happens when you move the right-hand joystick side-to-side-the ailerons should go up and down appropriately.
Move the joystick forward and back to see if the ailerons both respond correctly as elevators. If necessary, go to the S REV screen to
reverse an offending servo.

2) Now set the amount (and direction if necessary as noted above) of each servo-both as ailerons and as elevators.

Because flying wings are extraordinarily pitch sensitive (because the elevator control surface is so close to the airframe's center of gravity),
you generally need the elevator travel to be much less than that of the ailerons. We create this type of differential in the next step.

3) For now, leave the "MAS 1" percentage value at the default 100% (unless your servo is stalling) and then CURSOR over to the "SLV 1"

where you will also leave the default value at 100%. Push the CURSOR button again to light up "MAS 2" and reduce the value to +40%;
CURSOR over to "SLV 2" and reduce that value to +40% as well.
If one of the servo's travel directions isn't correct in the elevator function, simply make this servo's travel volume a negative -40%.

4) When you fly the model, if you find that this 40% reduction isn't enough to take out "pitchiness", land and further reduce the travel volume.

To tone down the roll response, you can reduce the endpoints of the aileron travel or set up dual-rates on channel one as described in the
setup of Model-1 above.

Setting Up Elevons

1) Activate the program by pushing both DATA buttons-the "Inh" symbol changes to the default 100% value.

With your model turned on, test the ailerons by moving the joystick to the right and to the left: To the right, the right-hand aileron should go
up while the left-hand aileron goes down.
If this isn't happening, go to the S REV screen and reverse the offending aileron.

2) Now check the travel volume: If the servos are stalling at their maximum throw, turn down the value in the EPA screen (or move the

pushrod further up on the aileron horn to physically reduce the throw).

This is another built-in mixing program available in the Sky Tech TS6i

that mixes the rudder and elevator servos for controlling V-tailed

aircraft. Similar to elevon programming, the two surfaces can move up and down together (for elevator control) or opposite (for rudder control
in this case).

surfaces can move up and down together (for elevator control) or opposite (for rudder control in
this case).

Setting Up Flaperons

1) Activate the program by pushing down both DATA buttons simultaneously-the screen will change from "Inh" to a % value.
2) With your model turned on, check your servo travel directions-both rudder and elevator channels-to be sure they are correct. Go to the S

REV screen if necessary to make the correction.

3) For a basic V-tail setup, you can leave all the values at 100% so the "ruddervators" will move as both elevators and rudders.
4) If you wish to a rudder control to the aileron stick movement, refer to the Aileron-Rudder mix on page 37. Use a small percentage of mix for

coordinated turns, or set it up at 100% mix if your plane does not have ailerons and you wish to fly it with the right stick.

Setting Up Flaperons

Now let's create some aileron differential so that the ailerons move about twice as much
upward than downward.
Notice that the "MAS" (master) symbol is blinking along with channel 1 and the % sign. This
means that we can change the travel value of the right-hand aileron (the master servo).
Also notice that L/U is showing, meaning the value will change only for left-stick throw.
1) Reduce the downward movement to 50% by pushing down the left-hand DATA button.

Now move the stick to the right and you will see R/D appear along with the default 100%
throw value.

2) To create similar differential on the left hand servo (the slave) push down the right-hand

CURSOR button once-now the "1" and the "SLV" symbols will be blinking. This time
leave the L/U stick position at 100%, then move the stick to the right to light up R/D and
decrease the downward travel value to 50% with the left-hand -DATA button.

Now we have differential-each aileron should be moving downward about half the amount it
moves upward. You will likely have to adjust these values once you fly the plane and
observe the yaw of the fuselage as you roll the aircraft:

Create Aileron Differential

NOTE:

When you activate ELVN, note that flaperon and V-tail mixing are rendered unavailable by the radio.

It is possible due to the particular configuration of your servos that servo reverse won't fix the
problem-you may get the ailerons working properly but not the elevator response on both servos.
Don't worry: You can fix this problem in the elevon programming by changing one of the servo travel
volumes to a negative value.

IMPORTANT NOTE :

NOTE:

When you select V.TAL, the ELVN program is rendered unavailable.

Front view

CH1

CH2

Aileron Operation

Elevator Operation

Nose Points outside Circle

increase coupling and/or

differential

Coordinated turn