ROBBE Light Thing Instrucciones De Montaje página 4

- Place the cowl on the fuselage and position it so that the
propeller driver does not foul the moulding. You will be
able to see the marked points through the cowl; pierce
holes at these points, and fit the self-tapping screws to
secure the cowl.
- Alternatively the cowl can be held in place with adhesive
tape.
Figs. 11 and 12
- Fit the propeller on the propeller driver.
- Apply epoxy to the undercarriage legs and slide them into
place, followed by the retaining plates "S".
- Connect the aileron pushrods to the horns in the bottom
wing.
- Fit a double-ended output lever on the aileron servo, and
check that the servo is at neutral (centre).
- Connect the pushrods to the servo output arms, fit the
servo in its mount and secure it with the retaining screws
supplied with it. Run the servo cable into the cockpit area
of the fuselage.
- If the ailerons are not quite at neutral, correct them by
adjusting the bends in the pushrods.
Fig. 13
- It is also possible to install two aileron servos. This option
enables you to set up the ailerons to work as flaps, acting
in opposition to the elevators via a transmitter mixer.
Figs. 14 and 15
- Set the rudder and elevator servos to neutral, and press
the output arms onto the output shafts.
- Connect the pushrods to the servo output arms, fit the
servos in the fuselage and secure them with the retaining
screws.
Assembly and operating instructions
Light Thing
Fig. 16
- Tape or pin the rudder and elevators at centre.
- Fit the plastic retainer clips onto the pushrod ends.
- Lay the pushrods over the appropriate control surface
horns, and mark the point where they cross the middle
holes.
Fig. 17
- Bend the pushrods at right-angles at the marked point,
and connect them to the horns.
- Snip off excess pushrod length, and snap the plastic
retainers into place.
Figs. 18 and 19
- Pierce the covering film over the hole for the tailskid.
- Epoxy the tailskid in the hole, and fit a piece of adhesive
tape over it for additional strength.
Fig. 20
- Connect the servos and the speed controller to the recei-
ver.
- Unwind the flexible wire aerial attached to the receiver.
- The receiver should be mounted in the fuselage in a sui-
table location using pieces of Velcro tape (not included in
the kit).
Fig. 21
- Install the receiver in the fuselage.
Fig. 22
- Use a length of stiff wire to feed the receiver aerial back
4
through the fuselage and out of one of the air outlets at
the tail end. Allow the end to trail freely; do not shorten
the wire.
Figs. 23 and 24
- Place the canopy on the fuselage, centre it carefully, and
fix it in place with a strip of adhesive tape on each side.
Figs. 25 and 26
- Locate the spring latch "F" in the fuselage hatch and
move it back to allow the hatch to be removed.
Fig. 27
- Place the flight battery in the fuselage and secure it with
Velcro strip to prevent it shifting in flight.
- Do not connect the battery at this point.
- Replace the hatch on the fuselage.
Fig. 28, balancing
- Mark the CG position on both sides of the fuselage; it
should be 2 - 5 mm in front of the rear cabane strut (see
photo).
- Use your index fingers to support the model close to the
fuselage under the wings at the marked points. Ideally the
aeroplane will now balance level, with the nose angled
slightly down.
- If necessary, add lead ballast to the nose or tail to correct
any discrepancy. Fix any ballast securely, so that there is
no chance of it shifting in flight, as this would alter the
model's CG.
- Mark the battery position in the fuselage compartment to
ensure that it is replaced in exactly the same location
when you switch batteries.
No. 3213
No. 3213ARF