E-flite UMX Yak 54 180 BNF - Manual (Page 7)

7
EN
ESC/Receiver Arming, Battery Installation and Center of Gravity
4
1- 2- 3- 4 -5
Sec.
1
2
3
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/receiver also occurs after binding
as previously described, but subsequent connection
of a fl ight battery requires the following steps.
AS3X
The AS3X
® system will not activate until the
throttle stick or trim is increased for the first
time. Once active, the control surfaces may
move rapidly and noisily on the aircraft.
This is normal. AS3X technology will remain
active until the battery is disconnected.
1. Remove the battery hatch from the fuselage
using the tab.
2. Attach the battery to the hook and loop strip
so the battery end opposite the connectors
aligns with the leading edge of the wing.
Center of Gravity (CG)
At the wing root, measure the CG location 50mm
back from the leading edge of the wing.
3. Lower the throttle and throttle trim to the
lowest settings on your transmitter. Power
on your transmitter, then wait 5 seconds.
4. Connect the battery to the ESC, noting proper
polarity. Keep the plane immobile and away
from wind for 5 seconds to allow the AS3X
system to initialize. A series of tones and
a continuous LED indicates a successful
connection.
CAUTION: Always disconnect the Li-Po
battery from the ESC when not fl ying to eliminate
power supplied to the motor. The ESC does not have
an arming switch and will respond to any
transmitter input when a signal is present.
CAUTION: Always disconnect the Li-Po
battery from the 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.
50mm