Failsafe function system check and operation – Tactic TTX410 4-Ch SLT User Manual

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The failsafe function is controlled by the included receiver. This function engages in the event the signal

from the Tx somehow becomes interrupted. In such case, channels 1, 2, and 4 (not channel 3) will hold
their last received position.

The factory default failsafe position for channel 3 is to move to 0% throttle. The throttle’s failsafe position can

be manually set to any other position if desired, as follows:

1. IMPORTANT: Make sure the servo reversing switches are in the correct position for the application.

2. Apply power to the Tx, then the Rx.

3a . If using an ESC: Do NOT arm the ESC, or attempt to adjust the throttle’s failsafe position if the ESC

is armed. NOTE: If using an ESC which has a signal loss feature, its pre-set failsafe position will be
irrelevant as the receiver’s failsafe function will cease the throttle operation if the signal becomes lost.

3b . If using a combustion engine: Do NOT attempt to adjust the throttle’s failsafe position while the

engine is operating.

4. Move the Tx throttle stick to the desired throttle failsafe position.

5. Press and hold the receiver’s “LINK” button. The Rx’s LED should blink twice. Release the LINK

button, and the LED should stay on continuously. The Tx and Rx should now be linked, with the
throttle failsafe in the new position as set above.

WARNING! Always make sure that power is applied to the transmitter BEFORE applying power

to the receiver and servos, and the Tx throttle stick is at minimum (idle) position. Failure to do
so could result in the model becoming uncontrollable and cause a safety hazard. During all pre-
flight preparations, do not stand the Tx upright on the ground. Carefully lay the Tx on its back

on the ground to prevent it from falling over and possibly dislodging the throttle stick which would create
a safety hazard. Make sure all devices are properly mounted inside the model, and all wiring connections
are solid to prevent them from easily becoming dislodged during normal flight. It’s best to check the system
with the propeller removed from the aircraft.

1. Once all connections are made, check the general operation of the radio and all other components

before attempting a flight.

2. Move the Tx throttle stick to the minimum (idle) position.

3. Turn on the Tx, and then the Rx.

4. Make sure all controls are operating in the proper direction. If any servo is turning in the wrong

direction, change the reverse setting for that particular channel.

5. With both sticks at center position, move the trim levers for the aileron, elevator, and rudder channels

so each respective control surface is perfectly aligned with the main surface. For example: When
the aileron trim lever is in the center position, it’s best that the trailing edge of the aileron is aligned
with the trailing edge of the wing itself (not above or below the wing’s trailing edge).

6. Make sure that movements of the throttle stick result in an equal adjustment of the throttle in the

model. Depending on whether the airplane is electric or combustion powered:

a. Electric: confirm that when the throttle stick is at maximum position the ESC gives the appropriate

indications (LED and/or beeps) for full forward flight. And, when the throttle stick is at minimum
position the ESC gives the appropriate indications for “off” or no motor rotation.

FAILSAFE FUNCTION

SYSTEM CHECK and OPERATION

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