12
Operating Instructions - BLUE ARROW XL 490 RTF 2.4 GHz No. S2542
Preparations for the first flight
Ideally the first flight should take place in a large indoor space
devoid of obstructions. If you have to fly the model in the open air,
wait for a day with
totally flat calm conditions
.
Charge the flight battery before flying.
The first few flights
Once the model is properly trimmed, you can practise hovering,
and carry out manoeuvres such as circles, squares, rectangles
and figures-of-eight.
Initially it is always best to stand about two metres away from the
model, behind or at right-angles to it; this avoids giving incorrect
control commands.
You can fly a square pattern by alternating the direction of flight:
away from the pilot, to the pilot's right, and then towards the pilot
again.
Tip: when the helicopter is flying with the nose pointing to-
wards you, the controls are reversed (apart from the throttle
control).
Important Notes
Take-off:
raise the rotor speed slowly and steadily until the model
hovers at eye-level. At the same time adjust the trims until the
helicopter flies stably and hovers over one point. At low height
(approx. 10 - 15 cm above the ground) the model cannot be trim-
med accurately due to the turbulence generated by the rotor.
Landing
: slowly and steadily reduce the throttle setting until the
model descends and touches down. Never reduce the throttle
setting abruptly.
After the landing disconnect the flight battery from the receiver,
and only then switch the transmitter off.
Caution
: stopping (obstructing) the rotor blades when th-
ey are turning can cause serious damage to the mecha-
nical system, and may even result in a fire. Immediately
move the throttle stick to Idle if this should happen.
When flying the model never switch abruptly from forward
flight to flight in reverse (pitch-axis function), as this could
cause the upper and lower rotor blades to collide, which
would destroy them.
Note regarding the flight battery:
as soon as you notice a red-
uction in motor power, land immediately and disconnect the bat-
tery. Never continue flying until the battery is flat, as this causes
a deep-discharge condition which results in permanent damage.
Allow the battery to cool down before recharging it.
Replacing the rotor blades:
if a rotor blade is damaged, replace
it immediately. When fitting the new rotor blade, tighten the retai-
ning screw just to the point where the blade still swivels smoothly.
Pilot
Pilot
Pilot
