Control Centering; Control Horn Settings; Low Voltage Cutoff - Horizon Hobby UMX Aero Commander Instruction Manual

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Control Centering

Before your first flight make sure the aircraft's
control surfaces are centered.
1. Power on the transmitter and then the aircraft.
2. Set all transmitter trims and sub-trims to zero.
3. Check the control surfaces to make sure they
are centered.
4. If centering is required, use a pair of pliers to
carefully bend the metal linkage
(see illustration).
In flight trimming may be required
During your first flight, the aircraft should fly
straight and level. Use your transmitter trims to
fine-tune the aircraft's flight path until it has been
corrected. Any transmitter trim that requires 4
or more clicks of trim (per channel), should be
mechanically centered. Note the control surface's
postion and return the transmitter trim to zero.
Adjust the linkages mechanically so that the control
surfaces are in the flight trimmed position.

Control Horn Settings

The illustration shows linkage positions chosen for
the best aerobatic response. Linkage connections
on the control horns directly affect aircraft response.

Low Voltage CutOff

LVC is a feature built into your ESC to protect the
battery from over-discharge. When the battery
charge becomes too low, LVC limits power supplied
to the motor. When you hear the motor power pulse,
land the aircraft immediately and recharge the flight
battery.
NOTICE: Do not rely on LVC to determine when
to land your aircraft. Set a flight timer to the
recommended flight time. Repeated flying to LVC
will damage the battery.
8
Make the U-shape narrower to make the
connector shorter. Make the U-shape wider to
make the linkage longer.
Elevator
Rudder

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