Horizon Hobby Safe Eflite Carbon Z T-28 User Manual

SAFE® Select Technology, Optional Flight Envelope Protection

The Eflite Carbon Z T-28 has been upgraded to include SAFE Select technology.
SAFE Select technology can offer an extra level of protection in fl ight. Use the
following instructions to make the SAFE Select system active and assign it to a
switch. When enabled, SAFE Select prevents the airplane from banking or pitching
past predetermined limits, and automatic self-leveling keeps the airplane fl ying in a
straight and level attitude when the aileron, elevator and rudder sticks are at neutral.

SAFE Select is enabled or disabled during the bind process. When the airplane is
bound with SAFE Select enabled, a switch can be assigned to toggle between SAFE
Select mode and AS3X mode.

AS3X® technology remains active with no banking limits or self leveling any time SAFE
Select is disabled or OFF.

Transmitter and Receiver Binding / Switching ON and OFF SAFE Select

The aircraft has an optional SAFE Select feature, which can be switched ON or OFF
easily by binding in a specifi c manner as described below.

IMPORTANT: Before binding a transmitter, read the Transmitter Setup section of your
manual to ensure that your transmitter is properly programmed for this aircraft.

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Switching ON SAFE Select Binding Sequence

Install Bind Plug

RX in Bind Mode

Binding Procedure / Switching ON SAFE Select

IMPORTANT: The included AR636 receiver has been programmed for operation
specifi cally for this aircraft. Refer to the receiver manual for correct setup if the
receiver is replaced or is used in another aircraft.

CAUTION: When using a Futaba® transmitter with a Spektrum™ DSM®

module, you must reverse the throttle channel and rebind. Refer to your
Spektrum module manual for binding and failsafe instructions. Refer to your Futaba
transmitter manual for instructions on reversing the throttle channel.

1. Move the transmitter controls to neutral (fl ight controls: rudder, elevators and

ailerons) or to low positions (throttle, throttle trim).*

2. Install a bind plug in the receiver bind port.

3. Place the aircraft level on its wheels, then connect the fl ight battery to the

ESC. The motor will produce a series of sounds. The orange bind LED on the
receiver will begin to fl ash rapidly.

4. Remove the bind plug from the bind port.

5. Take three steps away from the aircraft /receiver and then put the transmitter in

bind mode. Refer to your transmitter’s manual for specifi c binding instructions.
IMPORTANT: Do not point the transmitter’s antenna directly at the receiver
while binding.
IMPORTANT: Keep away from large metal objects while binding.

6. The receiver is bound to the transmitter when the orange bind light on the receiver

stays orange. The ESC will produce a series of sounds. The tones indicate the ESC is
armed, provided the throttle stick and throttle trim are low enough to trigger arming.

IMPORTANT: Once bound, the receiver will retain its bind settings for that trans­mitter until it has been intentionally changed, even when power is cycled ON and
OFF. Repeat the binding process as necessary.

SAFE Select ON Indication

Every time the receiver is powered ON the surfaces will cycle back and forth twice with
a slight pause at neutral position to indicate that SAFE Select is switched ON.

The throttle will not arm if the transmitter’s throttle control is not put at the
lowest position. If problems are encountered, follow the binding instructions and
refer to the transmitter troubleshooting guide for other instructions. If needed,
contact the appropriate Horizon Product Support offi ce.

Remove Bind Plug

Bind TX to RX

Switching OFF SAFE Select Binding Sequence

Install Bind Plug

RX in Bind Mode

Bind TX to RX

Binding Procedure / Switching OFF SAFE Select

IMPORTANT: The included AR636 receiver has been programmed for operation
specifi cally for this aircraft. Refer to the receiver manual for correct setup if the
receiver is replaced or is used in another aircraft.

CAUTION: When using a Futaba® transmitter with a Spektrum DSM module,

you must reverse the throttle channel and rebind. Refer to your Spektrum
module manual for binding and failsafe instructions. Refer to your Futaba transmitter
manual for instructions on reversing the throttle channel.

1. Move the transmitter controls to neutral (fl ight controls: rudder, elevators and

ailerons) or to low positions (throttle, throttle trim). *

2. Install a bind plug in the receiver bind port.

3. Place the aircraft level on its wheels, then connect the fl ight battery to the

The motor will produce a series of sounds.

ESC.
receiver will begin to fl ash rapidly.

DO NOT remove the bind plug at this time.

4. Take three steps away from the aircraft /receiver and then put the transmitter in

bind mode. Refer to your transmitter’s manual for specifi c binding instructions.
IMPORTANT: Do not point the transmitter’s antenna directly at the receiver

while binding.
IMPORTANT: Keep away from large metal objects while binding.

5. The receiver is bound to the transmitter when the orange bind light on the receiver

stays orange. The ESC will produce a series of sounds. The tones indicate the ESC
is armed, provided the throttle stick and throttle trim are low enough to trigger
arming.

6. Remove the bind plug from the bind port.
IMPORTANT: Once bound, the receiver will retain its bind settings for that trans-

mitter until it has been intentionally changed, even when power is cycled ON and
OFF. Repeat the binding process as necessary.

SAFE Select OFF Indication

Every time the receiver is powered ON the surfaces will cycle back and forth
once to indicate that SAFE Select has been switched OFF.

The throttle will not arm if the transmitter’s throttle control is not put at the
lowest position. If problems are encountered, follow the binding instructions and
refer to the transmitter troubleshooting guide for other instructions. If needed,
contact the appropriate Horizon Product Support offi ce.

The orange bind LED on the

Remove Bind Plug

* Failsafe

If the receiver loses transmitter communication, the failsafe will activate. When activated, failsafe moves the throttle channel to its preset
failsafe position (low throttle) that was set during binding. All other channels move to actively level the aircraft in fl ight.

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SAFE® Select Technology, Optional Flight Envelope Protection

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SAFE® Select Switch Designation

SAFE® Select technology can be assigned to any open switch (2 or 3 position) controlling a
channel (5–9) on your transmitter. Once assigned to a switch, SAFE select ON gives you the
fl exibility to choose SAFE technology or AS3X mode while in fl ight. If the aircraft is bound with
SAFE select OFF, the aircraft will be in AS3X mode exclusively.

IMPORTANT: Before assigning your desired switch, ensure that the travel for that channel
is set at 100% in both directions and the aileron, elevator, rudder and throttle are all on high
rate with the travel at 100%.

CAUTION: Keep all body parts well clear of the propeller and keep the aircraft
securely restrained in case of accidental throttle activation.

TIP: SAFE Select is assignable on any unused channels 5–9. See your transmitter manual
for more information about assigning a switch to a channel.

TIP: Use your radio channel monitor to confi rm that the four primary channels are showing
100% travel while assigning the switch.

TIP: Use the channel monitor to make sure the switch you are assigning for SAFE Select is
active and driving a channel between 5-9 and that it is traveling 100% in each direction.

TIP: Make sure your four primary channels are not reversed if you are having trouble
assigning a SAFE Select switch.

Control Surface Centering

After assembly and transmitter setup, confi rm that the control surfaces are
centered. If the control surfaces are not centered, mechanically center the control
surfaces by adjusting the linkages.

If adjustment is required, turn the clevis on the linkage to change the length of the
linkage between the servo arm and the control horn.

After binding a transmitter to the aircraft receiver, set the trims and sub-trims
to 0, then adjust the clevises to center the control surfaces.

Control surface centering should be done in AS3X mode before activating the
throttle after power up.

Assigning a switch

1. Bind the aircraft to choose SAFE Select ON. This will allow the system to be assigned to
a switch.

2. Hold both transmitter sticks to the inside bottom corners and toggle the desired switch
5 times (1 toggle = full up and down) to assign that switch. The control surfaces of the
aircraft will move, indicating the switch has been selected.

Repeat the process to assign a different switch or to deactivate the current switch if desired.

Mode 1 and 2 transmitters

100%

X 5

100%

Control Surface Direction

Switch on the transmitter and connect the battery. Use the transmitter to operate
the aileron, elevator, and rudder controls. View the aircraft from the rear when
checking the control directions.

Ailerons

1. Move the aileron stick to the left. The right aileron should move down and the
left aileron up, which will cause the aircraft to bank left.

2. Move the aileron stick to the right. The right aileron should move up and the
left aileron down, which will cause the aircraft to bank right.

Elevators

3. Pull the elevator stick back. The elevators should move up, which will cause
the aircraft to pitch up.

4. Push the elevator stick forward. The elevators should move down, which will
cause the aircraft to pitch down.

Rudder

5. Move the rudder stick to the left. The rudder should move to the left, which
will cause the aircraft to yaw left.

6. Move the rudder stick to the right. The rudder should move to the right, which
will cause the aircraft to yaw right.

Aileron stick

Elevator stick

Rudder stick

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SAFE® Select Technology, Optional Flight Envelope Protection