Flight Preparation - ROBBE ARCUS SONIC RTF Operating Instructions Manual

Flight preparation

Switch the transmitter on (Fig. 1).The battery status is
displayed at the top of the screen. Move the throttle stick
and trim to the lowest position. Open the canopy, place
the fully charged LiPo flight battery in the recess, and use
the Velcro tape to hold it in place. The Centre of Gravity
(see illustration on page 15) is checked by supporting the
model under the wings on both sides of the fuselage using
your index fingers, and allowing it to hang freely. Ideally
the model will now balance level, with the nose inclined
slightly down. The CG can be fine-tuned by adjusting the
battery position.
Now connect the battery and replace the canopy on the
fuselage (Figs. 2 - 4).
The transmitter and the receiver are now ready for use.
Repeat this procedure every time you wish to fly the
model.
Note: the 2.4 GHz transmitter and receiver are supplied
already bound at the factory. It will only be necessary to
bind the system again after a repair, or if you replace a
component.
Operating instructions - ARCUS SONIC RTF 2.4 GHz No. 2565
The correct pre-flight procedure.
Fig. 1
Fig. 4
Checking the working systems
Before the first flight it is important to set all the trims - ex-
cept for the throttle trim - to centre. The throttle stick must
be in the "fully back" position (towards you). If the propeller
turns, adjust the throttle trim until it comes to a halt.
The correct post-flight procedure.
Open the canopy and remove the flight battery. Replace
the canopy on the model, then switch the transmitter off.
Fig. 2 Fig. 3
Preparations for the first flight:
Wait for a day with absolute flat calm
conditions.
Charge the flight battery before
flying.
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