GRAUPNER AMIGO IV User manual

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
1
Order No. 9546
Instructions
AMIGO IV
Model glider
for
bungee launch, slope soaring and electric flying
This model requires at least a two-function radio control system.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
2
Specification
Wingspan approx. 2000 mm
Overall length approx. 1115 mm
Wing section NACA 4409
Tailplane section l Clark Y
Wing area approx. 62.47
Tailplane area approx. 7.5
Total surface area approx. 69.97
All-up weight according to
fittings, min. approx. 1110 g
Longitudinal dihedral approx. 1.5°- 2°
Centre of Gravity approx. 110 mm aft of the root leading edge,
measured on both sides of the fuselage
Notes on building the model
It is essential to read right through these instructions before starting to build the
model. Please be aware of the hazards involved in the use of tools.
Remove all traces of grease from the joint surfaces of components which are to be
glued. A good method is to sand lightly before wiping with a non-greasy liquid deter-
gent solution. Before gluing any GRP parts, and GRP fuselages in particular, the joint
surfaces must be sanded thoroughly with fine-grit abrasive paper before de-greasing
with a solvent such as acetone. This is the only method of obtaining durable glued
joints involving GRP parts.
Tools required to build the AMIGO IV
Pencil (HB lead), felt-tip pen, setsquare, tape measure or metre rule, Lexan shears,
Order No. 26, sharp, narrow-bladed knife, e.g. balsa knife, Order No. 980, small
electric drill, set of twist drills.
Gluing different materials
The following table provides a few examples of typical glued joints.
It is just a guide, and is not intended to be comprehensive.
Material Typical glued joint Adhesive
Order No.
Wood to Fin to UHU wood glue express
wood fuselage 958.60
or
UHU hart
534.35
Note:
Please observe the instructions provided by the adhesive manufacturers when using
their products. For more information on adhesives refer to the main FS catalogue.
Solvent-based adhesives should always be used in a well ventilated room.
Observe the manufacturer’s instructions and warnings.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Radio control system
We particularly recommend: mc-12 computer system or better
Recommended servos:
Function Type Order No.
For rudder and DES 675 BB 7940
elevator
For the receiver and transmitter batteries we recommend rechargeable packs, which
should be maintained carefully before and after each flying session. Please note that
batteries of this type do not reach full capacity until they have been charged and dis-
charged (cycled) several times.
We deliberately recommend rechargeable batteries for the receiver and transmitter,
as these types provide the widest margin of safety.
Please see the main FS catalogue for details of suitable battery chargers.
You will also need foam rubber for protecting the receiver from shock damage.
Motor pylon accessories
Item Order No.
Motor pylon 2910
INLINE 470 motor 6605
CAM PROP 1360.20.10
Precision spinner 1385.383
COMPACT FLY 25 BEC 7221
Assembling the AMIGO IV
Do not start building the model until you have studied the kit contents, and are
familiar with the components and the individual stages of construction. If you believe
you have grounds for complaint about any part, inform the model shop from whom
you purchased the kit in the first instance.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Fin and tailplane
Use your fingertips to locate the fin slot, the pushrod exits, and the openings for the
ON / OFF switch, the wing retaining dowels and the towhook. Melt the film over them
using the tip of a hot soldering iron.
Fit the fin in the exposed slot, pushing it down until it rests on the support plate
inside the fuselage. Mark the outline of the fuselage on both sides of the fin using a
felt-tip pen. Remove the fin and run a hot soldering iron along the edge of a steel
ruler positioned just below the marked line, then peel the covering film from the joint
areas.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Mark a centreline on the rudder hinges using a pencil, as shown in the photo, then
push the hinges into the slits in the fin to a depth of around 1 mm.
Push the hinges into the fin as far as the pencil-line, and glue them in place with
cyano-acrylate (“cyano”). It is best to use a syringe to apply the adhesive between
the hinge and the wood on both sides, as shown in the picture.
Allow the glue to set hard, then insert the hinges in the slits in the rudder to a depth
of about 1 mm once more.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Apply a drop of cyano on both sides of each hinge, and quickly push the rudder onto
the hinges, leaving a gap about 0.5 mm wide along the hinge-line.
The fin can now be glued in the slot in the fuselage using UHU hart or UHU wood
glue: apply glue to the support plate in the fuselage and to both sides of the fin, then
push the panel into the slot until it rests squarely on the support plate. Check that the
fin is exactly vertical, and tape it in position as shown while the glue is drying.
Drill 2 mm Ø holes for the rudder horn at the marked points on the rudder, and fix
the horn in place using two pan-head screws and the plastic spreader plate.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
7
Use your fingertips to locate the holes for the tailplane retaining screws on both
sides of the tailplane, and melt the film over them with a hot soldering iron.
Temporarily fix the tailplane to the fuselage using the M3 x 16 socket-head screws
provided. Slip the elevator pushrod into the guide tube, working from the tail end of
the fuselage. Screw the locknut and clevis on the threaded end, and connect the
clevis to the elevator horn as shown.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Position the horn on the elevator in such a way that the linkage hole for the clevis
lines up with the elevator hinge pivot axis; mark the screw-holes on the elevator.
Fix the horn to the elevator using two pan-head screws and the spreader plate.
Use side-cutters to snip off the excess length of the horn retaining screws, and file
the ends back flush with the spreader plate.
Installing the towhook
The towhook is attached to the fuselage using two socket-head machine screws and
the plastic spreader plate provided. Don’t overtighten the screws: tighten them just to
the point where the hook is fixed securely to the fuselage, and cannot shift.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
9
Installing the servos and the ON / OFF switch
Locate the rubber grommets and metal spacer sleeves supplied in the servo
accessory packs, and press them into the servo mounting lugs. Note that the flange
of the spacers must be at the bottom.
Fit the servos in the servo plate and drill 1.5 mm Ø pilot-holes through the
grommets. Fix the servos in place using the retaining screws supplied with them.
Cut down the servo output levers to the shape shown in the photo below.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Modifications reserved. No liability for printing errors 12.2010
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Set the servos to centre from the transmitter - check that the trims are exactly at
centre - before fitting the output arms on the output shafts. Use a felt-tip pen to mark
the position of the linkage holes on the pushrods.
Use a pair of flat-nose pliers to bend the pushrods up at right-angles at the marked
points. Snip off excess pushrod material at a point around 8 mm above the bend.
Connect the pushrods to the outermost holes in the servo output arms from the
underside, and push the plastic keepers into place to prevent them working loose.
The wings are retained on the fuselage by rubber bands stretched between
transverse aluminium tubes. Locate the dowel holes in the fuselage sides with your
fingertips, melt away the covering film using a hot soldering iron, and push the
aluminium tubes through; they should project by equal amounts on both sides.