GRAUPNER 92430 MICRO STAR 190SX Instruction Manual page 21

If you do not adhere to this sequence, i.e. if the receiver is switched on at any time when
the associated transmitter is "OFF", then the receiver may respond to other transmitters,
interference signals etc., and the motors could burst into life.
Before every fl ight check that the model's controls operate correctly, and at range (approx. 25
m). This simply means walking that distance from the model and checking that all the controls
work properly. Warning: never fl y the model in a hall with fan-assisted air-conditioning; this has
the same effect as quite a strong wind, and could easily push the model out of transmitter range
and allow it to go out of control.
Flight time: with a fully charged battery and fl at calm (indoor) conditions the helicopter will fl y
for about 10 minutes.
As soon as you notice that the model is unwilling to take off and climb, it is time to recharge the
fl ight battery.
8. Here we go!
1. Switch the transmitter on, the LED lights up solid red.
2. Switch on the helicopter by connecting the battery. The LED under the fuselage starts blin-
king, after approx. 5 seconds the LED lights up solid and the helicopter is fl ight-ready.
3. Place the model on a fl at fl oor, and check once more that there are no people, animals or
other obstacles close by.
4. Slowly move the throttle stick forward: the helicopter lifts off and climbs.
5. If necessary, turn the trim knob to trim the helicopter, then use the sticks to control the mo-
del.
The fi rst step in getting maximum fun out of the Micro Star 190 helicopter is to establish a sta-
ble, smooth hover. After a little practice the multi-channel control system can be used to fl y the
model in a similar manner to a "proper" model helicopter:
When the machine reaches the desired altitude, hold the left-hand stick (climb / descent) as still
as possible in the position where the helicopter neither climbs nor descends. If the model starts
turning in either direction, use the right-hand stick to counteract the movement; in this way you
will soon achieve a steady hover. Once you have learned the skill of keeping the Micro Star 190
helicopter hovering at a particular height, without rotating, you can deliberately alter the orien-
tation of the fuselage (and therefore the possible direction of fl ight) using the direction control
(right stick). The forward / back control (right stick again) is used to accelerate or brake the
model in this direction; the helicopter is even capable of fl ying slowly backwards. By combining
all the stick functions the model can be controlled in a similar manner to a 'real' helicopter.
9. Landing, terminating fl ight operations
The Micro Star 190 helicopter can be landed simply by gradually moving the left-hand stick
back towards you. After the landing the main switch on the model must fi rst be moved to the
"OFF" position, and only then the transmitter can be switched off.
Note: towards the end of a fl ight the model will become increasingly unstable due to the decli-
ning battery voltage. When this happens you must land the model and recharge the battery.
Fault-fi nding
• After the initial charge you may fi nd that the fl ight battery does not give its full capacity, resul-
ting in reduced fl ight times. The LiPo pack only reaches its full performance after a few
charge / discharge cycles.
Manual Micro Star 190
20