E-flite Viking Model 12 280 BNF Basic - Manual (Page 11)

11
EN
Center of Gravity (CG)
The CG location is 45mm back from the leading
edge of the wing at the wing root.
The battery compartment is oversized to allow for
Center of Gravity adjustment. Start by installing the
battery fully forward with the connectors facing the
front of the aircraft. Adjust as needed by sliding the
battery back.
45mm
Low Voltage Cutoff (LVC)
When a Li-Po battery is discharged below 3V per cell, it will not hold a charge. The aircraft’s ESC protects
the fl ight battery from over-discharge using Low Voltage Cutoff (LVC). Once the battery discharges to 3V per
cell, the LVC will reduce the power to the motor in order to leave adequate power to the receiver and servos
to land the airplane.
When the motor power decreases, land the aircraft immediately and replace or recharge the fl ight battery.
Always disconnect and remove the Li-Po battery from the aircraft after each fl ight. Charge your Li-Po
battery to about half capacity before storage. Make sure the battery charge does not fall below 3V per cell.
Failure to unplug a connected battery will result in trickle discharge.
For your fi rst fl ights, set your transmitter timer or a stopwatch to 3.5 minutes. Adjust your timer for longer
or shorter fl ights once you have fl own the model. Flights of 6 minutes are achievable if using proper throttle
management.
NOTICE: Repeated fl ying to LVC will damage the battery.