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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.
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.
Takeoff
Place the aircraft in position for takeoff (facing into the wind). Select low rates for
first takeoff and gradually increase the throttle to 3/4 to full and steer with the
rudder. Pull back gently on the elevator and climb to a comfortable altitude.
Flying
For your first flights with the recommended battery pack (SPMX22004S30), set
your transmitter timer or a stopwatch to 3 minutes. After four minutes, land the
aircraft. Adjust your timer for longer or shorter flights once you have flown the
model.
Fly the aircraft and trim it for level flight in Precision Mode at 3/4 throttle. 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.
NOTICE: Due to the high-performance nature of the Ultimate 3D's power
system, we recommend allowing the motor to cool to ambient temperature
between flights when using 4S batteries and flying aggressively in
temperatures of 90+°F (approximately 32+°C).
Landing
To land the aircraft, fly the aircraft down to the ground using 1/4 –1/3 throttle to
allow for enough energy for a proper flare. The aircraft is easiest to land doing a
wheel landing (two point), where the aircraft touches down on the main landing
gear first while the tailwheel is still off the ground. The aircraft can also be landed
in a three-point attitude, where all three wheels touch down at the same time.
When the aircraft touches down, reduce back pressure on the elevator stick to
prevent the plane from becoming airborne again.
SAFE
Select Flying Tips
®
When flying in SAFE Select mode the aircraft will return to level flight any time
the aileron and elevator controls are at neutral. Applying aileron or elevator
control will cause the airplane to bank, climb or dive. The amount the stick is
moved will determine the attitude the airplane flies. Holding full control will
push the aircraft to the pre-determined bank and roll limits, but it will not go
past those angles.
When flying with SAFE Select, it is normal to hold the control stick deflected
with moderate aileron input when flying through a turn. To fly smoothly with
SAFE Select, avoid making frequent control changes and don't attempt to
correct for minor deviations. Holding deliberate control inputs will command
the aircraft to fly at a specific angle, and the model will make all corrections to
maintain that flight attitude.
When flying with SAFE Select, throttle will make the aircraft climb or descend.
Full throttle will cause the aircraft to pitch up and climb slightly. Mid throttle
will keep the airplane flying level. Low throttle will cause the airplane to
descend slightly nose-down.
Return the elevator and aileron controls to neutral before switching from SAFE
Select mode to AS3X mode. If you do not neutralize controls when switching
into AS3X mode, the control inputs used for SAFE Select mode will be
excessive for AS3X mode and the aircraft will react immediately.
16
If landing on grass, it is best to hold full up elevator after touchdown and when
taxiing to prevent nosing over.
Once on the ground, avoid sharp turns until the plane has slowed enough to
prevent scraping the wingtips.
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. 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.
Differences between SAFE Select and AS3X modes
This section is generally accurate but does not take into account flight speed,
battery charge status, and other limiting factors.
SAFE Select
Control stick
Aircraft will self level
is neutralized
Holding a
Aircraft will bank or pitch to a
small amount
moderate angle and maintain the
of control
attitude
Aircraft will bank or pitch to
Holding full
the predetermined limits and
control
maintain the attitude
Full throttle: Climb
Throttle
Neutral: Level flight
Low throttle: Descend nose-down
AS3X
Aircraft will
continue to fly at its
present attitude
Aircraft will
continue to pitch or
roll slowly
Aircraft will
continue to roll or
pitch rapidly
Throttle will
not affect flight
response.
Ultimate 3D
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