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8
Installing the Flight Battery and
Arming the Electronic Speed
Control (ESC)
1. Rest the aircraft on a fl at surface with the landing
gear facing up.
2. Turn the latch (A) and remove the battery hatch.
3. Lower the throttle and throttle trim, then power on the
transmitter for at least 5 seconds.
(Mode 2 transmitter shown)
4. Center and secure the fl ight battery (B) in the battery
compartment using the hook and loop strap (C) so
that the aircraft has a balanced Center of Gravity (CG).
IMPORTANT: Before fl ying, refer to the "Verifying Your
Aircraft's Center of Gravity (CG)" section for details about
fi nal battery placement.
5. Connect the fl ight battery to the aircraft and keep
the aircraft immobile for at least 5 seconds. The
aircraft does not need to be level, but it must be kept
immobile. If the aircraft moves, disconnect, then
reconnect the battery.
If you accidentally connect the battery while the throttle
is fully opened, a musical tone will sound after 5 seconds
and the ESC will enter programming mode. Disconnect
the battery immediately and go back to step 5.
6. Replace the battery hatch and turn the latch.
CAUTION: Always disconnect the Li-Po fl ight 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 perfor-
mance and potential fi re when batteries are charged.
CAUTION: Always keep hands away from the propel-
ler. When armed, the motor will turn the propeller in
response to any throttle movement.
Battery Precautions for Flight
• Keep the aircraft close until you are familiar with the
fl ight time.
• Do not fl y to LVC (motors pulsing) repeatedly. This may
result in battery damage.
• Always disconnect and remove the fl ight battery when
fi nished fl ying.
Glasair Sportsman
EN
1
2
4
5
6
3
A
C
B
Keep immobile and
out of the wind for
5 seconds
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