GRAUPNER ELEKTRO-ROOKIE QR Building Instructions

Order No. 4239

BUILDING INSTRUCTIONS

ELEKTRO-ROOKIE QR

RC electric-powered model for three LiPo cells of around 2500 mAh

This model requires a 3-function or 4-function HoTT radio control system

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Modifications reserved. No liability for printing errors. Id.-Nr. 0062273 3/2011

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Please be sure to read through the Safety Notes in the Appendix to these operating
instructions. If you ever dispose of the model, it is important to pass on the complete building
instructions to the new owner.

Introduction

The ELEKTRO-ROOKIE QR is an RC model aircraft designed expressly for the
newcomer to model flying, and offers a superb performance in the air. Either the
rudder or the ailerons can be set up as the primary directional control. If you intend
only to fit rudder control at first, it is nevertheless an easy job to fit working ailerons at
a later stage. For safety reasons the model’s all-up weight should not exceed 850 g.

RC system accessories (not included)
GRAUPNER MX-12 HoTT 2.4 COMPUTER SYSTEM Order No. 4754

ULTRAMAT 16S battery charger Order No. 6468
C231 servo (two to four required) Order No. 5109.LOSE
Servo extension lead, 100 mm (two required) Order No. 3935.11
Servo extension lead, 320 mm (two required) Order No. 3935.32
LiPo battery, 20C 3/2500, 11.1 V, G3.5 Order No. 7633.3

Essential tools and adhesives (not included)
Balsa knife Order No. 980

Cyano-acrylate (“cyano”) Order No. 5821
Cyano-acrylate activator (“kicker”) Order No. 953.150
You will also need the following items: cross-point screwdriver, flat-nose pliers, paper
scissors, 1.5 mm A/F allen key, adhesive tape, paper towel, protective gloves,
goggles.

Building instructions

Please start by reading right through these building instructions, so that you gain an
overall understanding of how the model goes together. Lay out the components
required for each stage of construction, together with the tools and adhesives. When
working on the model always keep the bench surface clean and smooth, or cover it
with a sheet of soft foam; this avoids damage to the model’s surfaces. Unless stated
otherwise, use cyano-acrylate glue (“cyano”) and activator (“kicker”) for all joints on
this model: the best method is to apply adhesive to one side of the joint, and spray
activator on the mating surface. Please take particular care to avoid adhesive getting
on your hands or the surface of the model: wipe off excess glue immediately using
kitchen paper (paper towel).

Caution: cyano-acrylate adhesives must not be allowed to come into contact
with any part of your body, and especially not your eyes. For this reason we
recommend that you wear goggles when building the model. Store all glues
well out of the reach of children. For safety reasons use the adhesive stated
above exclusively.
Please take the time to read through the operating instructions for the
BRUSHLESS CONTROL 18 speed controller, which is supplied in the motor set.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Modifications reserved. No liability for printing errors. Id.-Nr. 0062273 3/2011

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Fuselage and fin

You will find a strip of foam linking the bottom edge of the rudder to the fuselage; cut
this away, and move the rudder repeatedly from side to side to free up the integral
hinge line.

Glue the fuselage stiffening tube (3) in the right-hand fuselage side (1), followed by
the two “snake” outer sleeves (4), noting that the sleeve for the rudder should be
fitted first; it must project by 15 mm at the front end.

Caution: do not cut off the excess length of the snake sleeves (4) at the tail end, as
this might allow excess cyano to run inside them.

The illustration shows the small ABS parts included in the kit.
Do not remove these components from the sprue until you actually need them.
Unscrew the original output levers from the C231 servos, and set the servos to centre
(neutral) from the transmitter. Mount parts (5) to (9) on the servo output arms (6) as

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Modifications reserved. No liability for printing errors. Id.-Nr. 0062273 3/2011

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shown in the photo. Tighten the nuts just to the point where the swivel pushrod
connectors rotate smoothly, but without lost motion.

Screw the servo output arms to the servos in the arrangement shown in the picture.

Fix the rudder servo in the right-hand fuselage shell (1) with a single drop of cyano on
each mounting lug and one on the underside of the servo case.

Caution: do not use thin cyano to secure the servos, or too much cyano of any
type, as it could penetrate the case and jam the moving parts.

Use the same procedure to glue the elevator servo in the left-hand fuselage shell (2).
Check from the transmitter that both servos still work correctly.
Fix the motor (10) to the motor mount (8) using the two screws (9). Tighten the
screws fully, and secure each one with a drop of cyano.

The motor mount (8) can now be glued in the right-hand fuselage shell. Press the
cables into the channel, and secure them with a little glue. If necessary, shorten the
motor cables by deploying them in a curve - as shown in the photo - so that the
BRUSHLESS CONTROL 18 speed controller lies flat on the fuselage. Tack the
speed controller in place with a little adhesive.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Modifications reserved. No liability for printing errors. Id.-Nr. 0062273 3/2011

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Connect the power system - but without fitting the propeller - and check that it
functions properly, referring to the instructions supplied with the power set.

Fit the countersunk plastic screw (22) in the threaded insert (11), then glue the insert
in the top of the fin as shown, again using cyano. Remove the plastic screw. The
fuselage shells (1) and (2) are now ready for joining. To be on the safe side, repeat
the check of the servos and the motor (without propeller), and temporarily fit the
pushrods (16) and (18) in the outer sleeves to ensure that they slide smoothly.
The photo below shows the fuselage shells (1) and (2) ready for joining.

The first step in joining the shells is to offer them up “dry” (no glue). It is a good idea
to secure the loose cables temporarily with tape to avoid them getting caught in the
joint.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Modifications reserved. No liability for printing errors. Id.-Nr. 0062273 3/2011

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