Battery Installation; Center Of Gravity - Freewing FJ3021 User Manual

Battery Installation

Battery hatch cover
Velcro
Push the pin towards the rear of the airplane and
remove the battery hatch cover. Place a battery on
the tray and use the Velcro straps to secure the
battery.
Before connecting a battery to the ESC, switch on
the radio and ensure that the throttle is in the lowest
position. Engage the kill switch if one is assigned.

Center of Gravity

The correct Center of Gravity is directly related to the success of
the initial flights. Refer to the following diagram to ensure you
have the proper CG. Once comfortable with the airplane, you can
adjust the CG to suit your individual taste.
You can adjust the CG by moving the battery either forward or
back. If you find that moving the battery is insufficient, you can
use some other suitable material such as a sticky back weight strip
to counter weight.
70-75mm
(2.76~2.95 in)
F/A 18E Super Hornet
Item No.: FJ3021
Version No.: FJ3021-V02
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The standard battery is: 65 22.2V 5000mAh
35C You can choose a different battery, just
remember to refer to the battery hatch size:
L=240mm; W=50mm; H=50mm
65 22.2V 4500mAh 65 22. 2V 5200mAh
N
Discharge rate of C > 35C
Different battery weights may affect the CG,
Always check the CG when using a different size
of battery than you use normally.
EN