E-flite UMX F4U Corsair RTF with AS3X - Manual (Page 11)

11
EN
We recommend fl ying your aircraft outside in calm
conditions. Always avoid fl ying near houses, trees,
wires and buildings. You should also be careful to
avoid fl ying in areas where there are many people,
such as busy parks, schoolyards or soccer fi elds.
Consult local laws and ordinances before choosing
a location to fl y your aircraft.
Takeoff
Place the aircraft in position for takeoff (facing into
the wind if fl ying outdoors). Set dual rates to low
position and gradually increase the throttle to ¾ to
full and steer with the rudder. Pull back gently on
the elevator and climb to check trim. Once the trim
is adjusted, begin exploring the fl ight envelope of
the aircraft.
Landing
Land into the wind. This is very important for this
model. Fly the aircraft to approximately 6 inches
(15cm) or less above the runway, using a small
amount of throttle for the entire descent. Keep the
throttle on until the aircraft is ready to fl are. During
fl are, keep the wings level and the airplane pointed
into the wind. Gently lower the throttle while pulling
back on the elevator to bring the aircraft down on
all three wheels.
Failure to lower the throttle
stick and trim to the lowest
possible positions during a
crash could result in damage
to the ESC in the receiver
unit, which may require
replacement.
This aircraft is equipped with
Over Current Protection (OCP).
This feature protects the ESC
from overheating. OCP stops the motor when the
transmitter throttle is set too high and the propeller
cannot turn. The OCP will only activate when the
throttle stick is positioned just above 1/2 throttle.
After the ESC stops the motor, fully lower the
throttle to re-arm the ESC.
NOTICE: Crash damage is not covered under the
warranty.
Repairs
Repair the aircraft using foam-compatible CA
(cyanoacrylate adhesive) or clear tape. Only use
foam-compatible CA, as other types of glue can
damage the foam. When parts are not repairable,
see the Replacement Parts List for ordering by
item number.
For a listing of all replacement and optional parts,
refer to the list at the end of this manual.
NOTICE: Use of foam-compatible CA accelerant on
your aircraft can damage paint. DO NOT handle the
aircraft until the accelerant fully dries.
NOTICE: When you are fi nished fl ying, never leave
the aircraft in direct sunlight or in a hot, enclosed
area such as a car. Doing so can damage the foam.
Flying Tips and Repairs
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 pulses, 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 4 minutes. Adjust your timer for longer
or shorter fl ights once you have fl own the model.
NOTICE: Repeated fl ying to LVC will damage the
battery.
Low Voltage Cutoff (LVC)
NOTICE: Always
decrease throttle
at propeller strike.