User Manual

EN
Night Radian
12
Flying Tips and Repairs
Consult local laws and ordinances before choosing a flying location.
Range Check your Radio System
Before you fly, range check the radio system. Refer to your specific transmitter
instruction manual for range test information.
Hand Launch
Set your dual rate switches to low rate. Hold the aircraft fuselage under the wing
and gradually increase the throttle to ¾. Launch the aircraft into the wind with the
wings level. Allow the aircraft to climb to a comfortable altitude.
Flying
Always choose a wide-open space for flying your aircraft. It is recommended that
you fly at a designated RC flying field. Always avoid flying near houses, trees, wires
and buildings. Avoid flying in areas where there are many people, such as parks,
schoolyards, or soccer fields.
Oscillation
Once the AS3X system is active (after advancing the throttle for the first time), you
will normally see the control surfaces react to aircraft movement. In some flight
conditions you may see oscillation (the aircraft rocks back and forth on one axis
due to overcontrol). If oscillation occurs, refer to the Troubleshooting Guide for
more information.
After landing, adjust the linkages mechanically to account for trim changes and
then reset the trims to neutral. Ensure the aircraft will fly straight and level with no
trim or sub-trim.
Landing
For your first flights with the recommended battery pack ( SPMX22003S30),
set your transmitter timer or a stopwatch to 8 minutes. After 8 minutes, land
the aircraft. Adjust your timer for longer or shorter flights once you have flown
the model. If at any time the motor pulses, land the aircraft immediately to
recharge the flight battery. See the Low Voltage Cutoff (LVC) section for more
details on maximizing battery health and run time.
Make sure to land into the wind. Due to the high lifting efficiency of the sailplane
design, landing requires a large landing area. While on your downwind leg,
remember that the sailplane glides much better than other aircraft. You will need
to setup for landing lower and with a more shallow descent than you may be used
to. As you are on approach for landing, ensure that the model is descending slowly,
but also not accelerating. Maintain this descent and speed, and, as the model
nears the ground (approximately 6 inches (15 cm)), slowly apply a small amount
of up elevator. Before the aircraft touches down, always fully decrease throttle to
avoid damage to the propeller, motor, ESC or other components.
WARNING: Always decrease throttle at propeller strike.
NOTICE: If a crash is imminent, reduce the throttle and trim fully. Failure to do so
could result in extra damage to the airframe, as well as damage to the ESC and
motor.
NOTICE: After any impact, always ensure the receiver
is secure in the fuselage. If you replace the receiver, install the new receiver in
the same orientation as the original receiver or damage may result.
NOTICE: Crash damage is not covered under warranty.
NOTICE: When you are finished flying, never leave the aircraft in direct sunlight
or in a hot, enclosed area such as a car. Doing so can damage the aircraft.
Low Voltage Cutoff (LVC)
When a Li-Po battery is discharged below 3V per cell, it will not hold a charge. The
ESC protects the flight battery from over-discharge using Low Voltage Cutoff (LVC).
Before the battery charge decreases too much, LVC removes power supplied to the
motor. Power to the motor pulses, showing that some battery power is reserved for
flight control and safe landing.
Disconnect and remove the Li-Po battery from the aircraft after use 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. LVC
does not prevent the battery from over-discharge during storage.
NOTICE: Repeated flying to LVC will damage the battery.
Tip: Monitor your aircraft battery’s voltage before and after flying by using a Li-Po
Cell Voltage Checker (SPMXBC100, sold separately).
Repairs
Thanks to the EPO foam material in this aircraft, repairs to the foam can be made
using virtually any adhesive (hot glue, regular CA, epoxy, etc).
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 CA accelerant on your aircraft can damage paint. DO NOT handle
the aircraft until accelerant fully dries.
Wind