EFL1850 X-VERT Manual

EN
13
After landing disconnect and remove the Li-Po battery from the aircraft to prevent
trickle discharge. Charge your Li-Po battery to about half capacity before storage.
During storage, make sure the battery charge does not fall below 3V per cell.
NOTICE: If a crash is imminent, activate the throttle cut to immediately stop
the motors to reduce the possibility of damage to the airframe and electronic
components.
NOTICE: Crash damage is not covered under warranty.
NOTICE: Never leave the aircraft in direct sunlight or in a hot, enclosed area
such as a car. Doing so can damage the aircraft.
Propeller Inspection
Inspect the propellers after every fl ight. Check for breaks, cracks or bends of
the propeller tips. Even minor damage may affect the fl ight performance of the
aircraft and may cause unwanted yaw under throttle in forward fl ight. If any
damage is found, replace the propeller before attempting additional fl ights.
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 approzimately 3.45V 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 aircraft.
How the LVC function is indicated is dependent on which fl ight mode is active.
While in vertical mode, the motor power will decrease. The aircraft will respond
sluggishly to throttle and will gradually not be able to gain or hold altitude.
When the motor power decreases, land the aircraft immediately and replace or
recharge the fl ight battery.
While in either of the forward fl ight modes, the motors will cut off briefl y and
power back on. If the motors cut off or surge in power, land immediately and
replace or recharge the fl ight battery. Transition back to vertical mode is possible
if done early in the LVC
NOTICE: Repeated fl ying to LVC may damage the fl ight battery.
LVC does not prevent the battery from over-discharge during storage.
Tip: Monitor your aircraft battery’s voltage before and after fl ying by using a
Li-Po Cell Voltage Checker (EFLA111, sold separately).
Repairs
Thanks to the Z-Foam
™
material in this aircraft, most repairs to the foam can be
made using virtually any adhesive (hot glue, regular CA, epoxy, etc). When parts
are not repairable, refer to the parts list at the end of this manual for a listing of
all replacement and optional parts for ordering by item number.
Post Flight
1. Disconnect the fl ight battery from the fl ight controller
2. Power OFF the transmitter.
3. Remove the fl ight battery from the aircraft.
4. Recharge the fl ight battery.
5. Repair or replace all damaged parts.
6. Store the fl ight battery apart from the aircraft and monitor the battery charge.
7. Make note of the fl ight conditions and fl ight plan results, planning for
future fl ights.
Familiarize yourself with the Flying Your Aircraft section prior to trimming your
aircraft. Trimming should be done in calm wind conditions and with a fully
charged transmitter and fl ight battery. Trimming should only be necessary in acro
mode, as the fl ight controller will compensate for minor trim issues in multirotor
and stability modes. It is important to make any trim adjustments mechanically
in the control linkages and re-set the transmitter trims to center to keep any
changes made from affecting multirotor and stability modes.
1. Power on and takeoff normally.
2. Change the fl ight mode to acro and fl y straight and level at approximately
3/4 throttle.
3. Trim the aircraft for level fl ight using the trim buttons on the transmitter.
4. When the aircraft maintains reasonable straight and level fl ight, land the aircraft.
5. Set the fl ight mode back to acro mode if it was changed for landing. Power
cycle the aircraft. Do not activate the throttle. Take note of the neutral postion
of the control surfaces.
6. Adjust the control linkages mechanically, as shown in the “Control Centering”
section, to compensate for the amount of trim entered.
7. Re-center the trims on the transmitter. The transmitter trims should always
be centered for best fl ight performance.
8. Fly the aircraft again to check the changes made.
9. Repeat the trimming process until the aircraft will maintain reasonable
straight and level forward fl ight without excessive control corrections.
When the initial trimming process is done, the aircraft should not require large
amounts of trimming on subsequent fl ights. If large amounts of trim are needed
to hold straight and level on later fl ights, land the aircraft and check the control
surfaces for damage or binding.
In Flight Trimming
CAUTION: Always disconnect the fl ight battery before performing motor
service.
Motor Removal
1. Disconnect the motor lead from the fl ight control board.
2. Remove the propeller retention screw and propeller from the motor shaft.
3. Looking through the hole in the bottom of the motor nacelle, remove the
setscrew from the motor mount.
4. Very carefully remove the tape covering the motor wire lead.
5. Pull the motor from the motor mount, feeding the motor wire lead through the
nacelle.
Assemble in reverse order.
Note: The illustration shows the propeller guard removed for clarity.
It is not necessary to remove the guards to replace the motors.
Motor Service
Motor wire lead
cover tape