J3-CUB
INSTRUCTION MANUAL
Center of gravity
Charge the Li-Po battery pack
Connect the charger to the mains power supply.The battery will take approx 2 hours to charge, when the
indicator on the charger turns from red to green the battery is charged, disconnect the battery. Do not
leave the battery unattended whilst it is charging.
Note:the Li-Po battery will heat up very quickly and possibly catch fire if it is overcharged. Keep the battery
and charger out of children's reach.
Only charge the battery with the supplied charger.
The user should take the responsibility for the use of other chargers.
Do not charge the battery if there is any noticeable swelling or the battery temperature is over70 C.
Do not damage or dismantle the battery.
Do not short-circuit the battery.
Do not put the battery into water.
Improper use of the battery will cause a fire or an explosion!
Always put the battery in a metal container when it is charging
or not in use.
It is recommended to use the included balance charger to
charge your battery.
Pre-Flight Check
1.Check for any warps or damaged parts on main wing, fuselage or tail components.
2.Check the propeller and the adapter, make sure it is secure and all the screws are
securely fastened.
3.Always check there are no other pilots using the same frequency(band) in the same area!
4.Securely fasten the main wing.
5.Make sure the power switch on the plane is OFF before connecting the battery. Make sure
you stay clear of the propeller.
6.Switch the transmitter on. then switch the receiver on.
7.ln case the motor starts rotating accidentally it is best to have an assistant hold the plane
securely.
8.Check plane responds properly to the control signals.
9.Screw the antenna all the way into the transmitter and test the range of the radio. With the
transmitter and model switched on step away at least 20m to check for interference.
10. If all the above checks out thoroughly then the airplane is ready to fly.
