Flying Tips And Repairs - Horizon Hobby UMX A-10 Thunderbolt II Manuel D'utilisation

Flying Tips and Repairs

Range Check your Radio System
After final assembly, range check the radio system
with the aircraft. Refer to your specific transmitter
instruction manual for range test information.
Flying
We recommend flying your aircraft outside in no greater
than moderate winds or inside in a very large indoor
facility. Always avoid flying near houses, trees, wires
and buildings. Be careful to avoid flying in areas where
there are many people, such as busy parks, schoolyards
or soccer fields. Consult local laws and ordinances
before choosing a location to fly your aircraft.
Fly in this area
Stand here
Hand Launching
Hold the aircraft above the wings between the
canopy and motor nacelles. Apply full throttle and
launch directly into the wind with an underhand
toss with the nose pointed up at approximately 45
degrees above the horizon.
Tip: Electric ducted fan (EDF) aircraft require airspeed
for control and have less control authority at slow
speeds without a propeller slipstream moving air over
the control surfaces.
Takeoff
Taxi the aircraft in position for takeoff (facing into
the wind if flying outdoors). Gradually increase the
throttle to full power, holding a small amount of up
elevator and steering with the rudder. Climb gently
to check trim. Once the trim is adjusted, begin
exploring the flight envelope of the aircraft.
Landing
Always land into the wind. Fly the landing pattern
with a slightly nose high attitude. Use throttle
management to control the decent rate of the
aircraft.
During flare, keep the wings level and the airplane
pointed into the wind. Gently lower the throttle while
pulling back on the elevator to bring the aircraft
down on the main wheels or to belly land without
landing gear.
NOTICE: Always fully lower the throttle when landing
the aircraft to prevent intake of foreign objects, which
can damage the ducted fan and motor.
Failure to lower the throttle stick and trim to the
lowest possible positions during a crash could result
in damage to the ESC in the receiver unit, which
may require replacement.
Over Current Protection (OCP)
The aircraft is equipped with Over Current
Protection. OCP protects the ESC from overheating
and stops the motor when the transmitter throttle is
set too high and the rotor cannot turn. OCP will only
activate when the throttle is positioned just above
1/2 throttle. After the ESC stops the motor, fully
lower the throttle to re-arm the ESC.
Low Voltage Cutoff (LVC)
LVC is a function built into your ESC to protect the
battery from over-discharge. When the battery
charge is low, LVC limits power supplied to the
motor. The aircraft will begin to slow and you
will hear the motor pulse. When the motor power
decreases, land the aircraft immediately and
recharge the flight battery.
NOTICE: Repeated flying to LVC will damage the
battery.
Hold here from
Disconnect and remove the Li-Po battery from
the top for hand
the aircraft after use to prevent trickle discharge.
launching
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.
For your first flights, set your transmitter timer
or a stopwatch to 5 minutes. Adjust your timer for
longer or shorter flights once you have flown the
model.
EN
11