E-flite UMX Hyper Taxi BNF - Manual (Page 7)

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Installing the Flight Battery
1. Attach the flight battery to the hook and loop
strip under the cockpit. See the Adjusting the
Center of Gravity instructions for the battery’s
position.
2. Place the aircraft on the ground out of the wind
and then connect a fully charged flight battery.
Ensure the aircraft is immobile for 5 seconds
so the AS3X system initializes correctly. See
the Arming the ESC instructions for correct
connection of the battery to the ESC.
NOTICE: If using a different battery than a 2-Cell
7.4V 180mAh 20C Li-Po, you will need to apply a
piece of hook and loop fastener to the back of the
battery, opposite the side with the label, in order to
hold the battery in place.
CAUTION: Always disconnect the Li-Po
battery from the aircraft ESC when not fl ying to
avoid over-discharging the battery. Batteries
discharged to a voltage lower than the lowest
approved voltage may become damaged, resulting
in loss of performance and potential fi re when
Batteries are charged.
If you accidentally connect the battery while the throttle is fully raised, the ESC will enter programming
mode. Disconnect the battery immediately.
The AS3X system will not activate until the throttle stick or trim is increased for the fi rst time. Once the AS3X
is active, the control surfaces may move rapidly on the aircraft. This is normal.
AS3X will remain active until the battery is disconnected.
CAUTION: Always keep hands away from the propeller. When armed, the motor will turn the propeller
in response to any throttle movement.
Arming the ESC
Arming the ESC also occurs after binding as previously described, but subsequent connection of a fl ight
battery requires the steps below.
Lower throttle and throttle
trim to lowest settings.
Power on the Transmitter
then wait 5 seconds
Install fl ight battery and
connect it to the ESC. Keep plane immobile
and away from wind for
5 seconds.
Series of tones
Continuous LED