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Idiomas disponibles
Idiomas disponibles
Specification
Top wingspan:
approx. 620 mm
Bottom wingspan:
approx. 595 mm
Overall length:
approx. 635 mm
Total surface area:
approx. 22 dm
All-up weight:
approx. 380 g
Total surface area loading:
approx. 17 g / dm
Dear customer,
Congratulations on your choice of a factory-assembled
model aircraft from the robbe Modellsport range. Many
thanks for placing your trust in us.
The Light Thing is available in two versions: the model No.
3213 is a ready-built airframe, whereas the ARF version is
also fitted with servos, motor and speed controller.
Note: the recommended accessories for the kit version are
not identical to the components supplied in the ARF and
RTF versions. Please note the recommendations in the
instructions and the accessory sheet.
Very little work is required to prepare the model ready for fly-
ing. You can make it as easy as possible to operate your
new biplane safely by taking the trouble to read right
through these instructions attentively, together with the
separate information sheets, before you fly it for the first
time.
All directions, such as "right-hand", are as seen from the
tail of the model, looking forward.
The radio control system
For this model you need a radio control system with at least
four channels. We recommend the use of a computer trans-
mitter, as this allows you to adjust control surface travels,
servo neutral points, directions of servo rotation and expo-
nential electronically.
If you use two aileron servos, these control surfaces can
also be set up to act as flaps, and can then be mixed in with
the elevator; this arrangement improves the model's
Assembly and operating instructions
manoeuvrability considerably. We recommend using identi-
cal aileron servos.
For the model No. 3213 you will need either three or four
servos and an electronic speed controller with BEC.
2
Before you start construction, please check that the RC
2
system components you intend to use will fit in the assig-
ned positions.
If you wish to use a radio control system other than the one
we recommend, you can still follow the installation descri-
bed, but you may need to make adjustments to allow for
minor differences in component size.
Set the servos to neutral before installing them in the model.
This is done by connecting the system and switching it on,
with the sticks and trims at centre. Remove the output discs
or levers from the servos.
Painting, decals
It is not necessary to paint the model.
When applying the decals you can emulate the arrangement
shown in the kit box illustration.
Notes on the building instructions
These building and operating instructions describe both
versions of the Light Thing model aircraft.
Depending on the model version you have acquired, certain
stages which are described in these instructions may alrea-
dy be completed for you. Simply skip these sections.
The servos described in the instructions may not be the
same as those included with your model or recommended
for it, depending on the version you have purchased.
Fig. 1
- The first stage involves the installation of various techni-
cal components. Be sure to read the instructions supplied
Light Thing
3
with these units before you fit them. Solder the appro-
priate connectors to the wires attached to the motor, the
speed controller and the battery, and insulate each solde-
red joint with a heat-shrink sleeve.
Figs. 2 and 3
- Undo the retaining screw in the top of the motor mount.
Slide the motor mount up, and pull it forward to remove it.
Fig. 4
- Fit the propeller driver on the motor shaft.
Fig. 5
- Attach the motor to the motor mount using the M3 x 4
countersunk screws supplied.
Fig. 6
- Slot the motor / mount assembly into the nose bulkhead
again, and tighten the retaining screw to secure it.
Fig. 7
- Connect the speed controller, and thread it back into the
fuselage. Run the receiver cable back as far as the cock-
pit area.
Fig. 8
- Place the cowl on the nose of the fuselage; you may need
to open up the central hole in the cowl to clear the pro-
peller driver; see arrow.
Figs. 9 and 10
- Inside the fuselage there are three hardwood blocks for
the cowl retaining screws. Mark the centre of these
blocks on the outside of the model.
No. 3213
No. 3213ARF
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