Instruction Manual
57
Dual Elevator Servos (with a rudder) (
AILEVATOR
) (
ACRO
): Many models use two elevator servos, plugged in separate 
receiver channels. (Flying wings without a separate aileron control use 
ELEVON
. V-shaped tail models use 
V-TAIL
, p. 58.) 
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• Ability to adjust each servo's center and end points for perfectly matched 
travel.
• Ease of assembly, not requiring torque rods for a single servo to drive 2
surfaces.
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• Redundancy, in case of a servo failure or mid-air collision. 
Adjustability:
• CH2 and CH8 only. (With programmable mixing, could utilize CH5 as the 2nd elevator servo. See www.futaba-rc.com\
faq\ for examples.) 
THROTTLE-NEEDLE
 uses CH8 and cannot be active simultaneously. 
• Direction of each servo's travel may be reversed in 
REVERSE
 or the set percentages may be reversed here. 
• Elevator travels independently adjustable (both directions and percent). 
• Optional action as ailerons (defaults to 
50%
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AIL1
 and 
2
 to 
0
 disables this feature. Note: if you want this, but controlled with a switch, set
 AIL1
 and 
2
 to 
0
 here, and use 
2 mixes . 
AIL-to-ELEV
 and 
AIL-to-AUX2
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the assigned switch is on. See p. 68. 
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AIRBRAKE
/
crow etc, please visit www.futaba-rc.com\faq\. Many other setups are also available.) 
The
AILEVATOR
 mixing function uses one servo on each of the two elevators, and combines the elevator function with the 
aileron function (unless aileron travel is set to 
0
). For aileron effect, the elevators are raised and lowered opposite of one 
another in conjunction with the ailerons. 
Once
AILEVATOR
 is activated, unless you zero out the aileron values (see below), any time you move your ailerons or any 
programming moves your ailerons (ie. 
RUDDER-AILERON
 mixing), the radio automatically commands both elevator servos 
to also operate as ailerons. To deactivate this action, simply set the 2 aileron travel settings to 
0
 in the 
AILEVATOR
 function. 
This way the elevators will work only as elevators. 
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GOAL of EXAMPLE: STEPS: INPUTS:
Activate twin elevator servos. 
Deactivate the elevator-acting-as-
ailerons portion of this function.
Note: Depending upon your model's 
geometry, you may need to reverse one
servo or set a negative percentage here.
Open the 
AILEVATOR
 function.
for 1 second.
 (If 
BASIC
, again.)
C
to
AILEVATOR
.
Activate the function.
C
to
MIX
. to
ACT
.
Optional: adjust up/down travel when 
operating as ailerons. (Ex: 
0
.)
C
to
AIL3
. to
0%
.
C
to
AIL4
. to
0%
.
Optional: adjust total elevator travel 
of each servo. (Ex: right servo elevator 
travel to 
98%
, left to 
96%
.)
C
to
ELE2
. to
98%
.
C
to
ELE1
. to
96%
.
Close menu.
Where next? Adjust individual servo's 
SUB-TRIMs
: see p. 49 and 
END POINTs
: see p. 39.
Set up Twin Aileron Servos: see p. 51.
Set up 
AIRBRAKE
 mix: see p. 63.










