User Manual

EN
Opterra 2m
During your first flight, trim the aircraft for level flight in a glide (power
off). Make small trim adjustments with your transmitter’s trim switches to
straighten the aircraft’s flight path.
After adjusting trim do not touch the control sticks for 3 seconds. This allows
the receiver to learn the correct settings to optimize AS3X performance.
Failure to do so could affect flight performance.
It is normal for the aircraft to climb under power when it’s trimmed properly for
maximum glide performance.
Flying Tips and Repairs
In Flight Trimming
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 Trouble-
shooting Guide for more information.
Hand Launching
When hand-launching your aircraft:
1. Put the aircraft into launch mode with the channel 5 switch.
2. Hold the aircraft in one hand and the transmitter in the other.
3. Apply full throttle and throw the aircraft directly into the wind, angled
slightly up (5 to 10 degrees above the horizon).
4. Climb to a safe altitude and check the trim.
Flying
Once your aircraft is at a safe altitude, flip the gear switch to put the aircraft
into AS3X mode to check and adjust the trim of the aircraft. Adjust the trim
as needed so that the aircraft flies straight and level without input from the
transmitter. Once the trim is adjusted, begin exploring the flight envelope of the
aircraft.
Your aircraft can fly for prolong periods of time when using conservative
throttle management.
CAUTION: Do not dive the aircraft for prolonged periods of time. Doing
so could cause the aircraft to gain too much speed, and overstress of
the aircraft is possible.
Spin Recovery
Sometimes the aircraft can fall into a spin. Knowing how to recover this aircraft
from a spin before flying is recommended.
1. Make sure the aircraft is in AS3X mode and not in launch mode.
2. Let the aileron stick go neutral.
3. Apply full down elevator until rotation of the aircraft stops.
4. Apply up elevator to restore level flight.
Landing
Land into the wind. Due to the high lifting efficiency of this aircraft’s airfoil
design, landing requires a large landing area clear of trees, buildings and cars.
While on your downwind leg, remember that this glides much better than other
aircraft.
You may need to setup for landing lower and with a more shallow decent than
you may be used to. As you are on approach for landing, ensure that the model
is descending slowly, but also not accelerating. If the model is accelerating, it
is likely that you will overshoot your projected landing area.
Maintain this descent and speed, and, as the model nears the ground (ap-
proximately 6 inches (15 cm)), slowly apply a small amount of up elevator. The
model should level out and fly parallel to the ground, decelerating further. Be
sure the model does not climb. As it decelerates, keep flying the model parallel
to the ground until it comes to rest gently on its belly.
NOTICE: If a crash is imminent, reduce the throttle fully. Failure to do so could
result in extra damage to the airframe, as well as damage to the ESC and
motor.
NOTICE: Crash damage is not covered under warranty.
Repairs
Repair this aircraft using CA (cyanoacrylate adhesive) glue or clear tape.
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 back of
this manual.
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 foam.
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