14
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 trimmed 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 they are
turning can cause serious damage to the mechanical system,
and may even result in a fire. Immediately move the throttle stick
to Idle if this should happen.
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.
Preparations for the first flight
Checking the working systems
Before the first flight it is important to set all the trims - except for
the throttle trim - to centre. The throttle stick must be in the "fully
back" position (towards you). If the rotor blades turn, adjust the
throttle trim until the rotor blades come to a halt.
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
.
Important:
Check the state of charge of the transmitter batteries before eve-
ry flight, and recharge them when necessary!
It is essential to charge the flight battery before every flight.
Operating Instructions - BO 105 SR FTR RTF 2.4 GHz
