E-flite UMX Spacewalker Instruction Manual download pdf (Page 8)

Flight Battery Installation and ESC Arming

Arming the ESC also occurs after binding as

previously described, but subsequent connection

of a ﬂ ight battery requires the following steps.

It is normal for linear servos to make noise. Noise

is not an indication of a faulty servo.

CAUTION: Always keep hands away

from the propeller. When armed, the motor will

turn the propeller in response to any throttle

movement.

CAUTION: Always disconnect the Li-Po

battery from the aircraft receiver 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.

1-2-3-4-5 Sec.

Lower throttle and

throttle trim to

lowest settings.

Power ON the

transmitter, then

wait 5 seconds.

Connect the

battery to the ESC,

noting proper

polarity.

Continuous LED

Secure the battery

to the hook and

loop strip on the

battery hold

er.

Refer to the

Center of Gravity

Adjustment

instructions for

the battery’s

position.

FLY...

Center of Gravity (CG) Adjustment

The CG location is 18mm back from the leading

edge at the wing root.

This CG location has been determined with the

included 1S 70mAh 3.7V Li-Po battery installed

in the battery cavity located on the bottom of the

aircraft.

Balance the model on the edge of a metal ruler to

ﬁ nd the Center of Gravity. Place the ruler on the

underside of the airframe at the CG location shown

in the image to the right. Move the battery forward

or aft until the model closely balances at this

location.

18mm

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 18 19

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E-flite UMX Spacewalker Instruction Manual Page 8

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