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
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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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The ON / OFF switch can be installed in either side of the fuselage: remove the
switch bezel, fit the switch through the opening in the fuselage from the inside, then
fit the bezel and the two retaining screws from the outside to secure it.
The canopy
Before trimming the canopy you will need to attach the wing to the fuselage: join the
panels using the steel joiner rod, then fix the wing to the fuselage using the rubber
bands supplied in the kit.
Cut out the canopy along the marked lines using a small pair of scissors (Lexan
shears, Order No. 26), and trim it carefully to fit.
The canopy can be fixed to the fuselage using either two pan-head self-tapping
screws or strips of tape.
The final step is to apply the decals in the arrangement shown in the kit box
illustration and on the title page of the assembly instructions.

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Assembling the AMIGO IV
Fit the receiver battery and receiver as far forward in the fuselage as possible,
wrapped in foam for shock absorption. Fix them in place so that they cannot shift aft
when the model is flying.
Push the wing joiner rod into one wing panel as far as the angle, then fit the second
panel onto the projecting end of the rod. Fix the wing to the fuselage using the
rubber bands supplied.
Important: ensure that the tailplane cannot shift when attached to the fuselage.
Balancing the AMIGO IV
The completely equipped model, i.e. in its ready-to-fly state, should balance level at
a point about 110 mm aft of the wing root leading edge, ideally with the nose inclined
slightly down. The lead ballast required must be fixed permanently in the fuselage,
so that it cannot possibly shift in flight.
For the first few test-flights it is a good idea to move the CG forward slightly.
Before flying the aircraft set the transmitter trims to centre and ensure that both
control surfaces are also exactly at centre (neutral).
Control surface travels
Elevator 10 mm up 10 mm down
Rudder 10 mm right 10 mm left
You may need to use the DUAL RATE function at the transmitter to set the
recommended control surface travels.
Important:
When fitting and adjusting the rudder and elevator linkages it is important to ensure
that they move freely, without binding, are able to move to their full extent - including
trim travel - and are not obstructed mechanically at any point.
When you move the rudder stick to the right, the rudder should also deflect to the
right (left stick: left rudder).
Pull the elevator stick back towards you, and both elevators must deflect up (stick
forward: elevator down).
All that remains is to wish you many hours of pleasure flying your AMIGO IV.
Yours - the team !

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It is essential to read right through the operating and assembly instructions
before you attempt to fly the model. You alone are responsible for the safe
operation of your radio-controlled model aircraft. Young people should only be
permitted to operate this model under the instruction and supervision of an
adult who is aware of the hazards involved in this activity.
If you have any questions regarding the safe operation of your RC model
aircraft, please turn to your local model shop in the first instance as the staff
will be pleased to help you.
Radio-controlled model aeroplanes are very demanding and potentially
dangerous machines. They require a high level of technical knowledge and
skill from the operator, together with a responsible attitude.
In legal terms our models are classed as aircraft, and as such are subject to
legal regulations and restrictions which must be observed. Our brochure
“Modellflugrecht, Paragrafen und mehr” (Model Aviation Law, Legal
Requirements and more) is available under Order No. 8034.02, and contains a
summary of all these rules. Your local model shop should have a copy which
you can read. There are also Post Office regulations concerning your radio
control system, and these must be observed at all times. You will find
information on this subject in the operating instructions supplied with your
radio control system.
It is important to use only those parts included in the kit, together with other
genuine Graupner accessories and replacement parts as recommended
expressly by us. Even if you change a single component, you can no longer be
sure that the whole system will work reliably, and such changes also invalidate
your guarantee.
Use only matching polarised connectors.
Avoid short circuits and reverse polarity at all times.
The high energy density of NiMH batteries involves a permanent risk of fire and
even explosion.
A radio-controlled model aircraft can only work properly and fulfil your
expectations if it is built very carefully and in accordance with the building
instructions. If you wish to avoid injuring people and damaging property, it is
essential to be careful and painstaking at all stages of building and operating
your model. Nobody would climb into a full-size sailplane and try to fly it
without completing a course of training first. Model flying is just such a skill,
and has to be learned in exactly the same way.
However, as manufacturers we have no means of influencing the way you build
and operate your RC model aircraft, and for this reason we can do no more
than point out the hazards expressly. We accept no further liability.
If you need help, please enlist the aid of an experienced modeller, join a model
club or enrol at a model flying training school. Model shops and the specialist
model press are also good sources of information. The best course is always
to join a club and fly at the approved model flying site.

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Adhesives and paints contain solvents which may be hazardous to health
under certain circumstances. Read and observe the notes and warnings
supplied by the manufacturer of these materials.
The operator of the model must be in full possession of his or her bodily and
mental faculties. As with car driving, flying a model aircraft under the influence
of alcohol or drugs is highly dangerous and not permissible under any
circumstances.
Make sure that all passers-by and onlookers are aware of the hazards involved
in the operation of your model.
Always keep a safe distance between your model and other people or objects.
Never fly low over people or directly towards them.
Radio-controlled models should only be flown in “normal” weather conditions,
i.e. a temperature range of -5°to +35°C. More extreme temperatures can lead to
changes in battery capacity, material characteristics, the strength of glued
joints and other unwanted effects.
All model flyers should behave in a way which minimises the danger to people
and property. Never act in any manner which will disturb other pilots, or have
an adverse effect on safe, orderly flying at the site.
Don’t operate your model in the vicinity of overhead power cables, industrial
sites, residential areas, public roads, squares, school playgrounds, public
parks or sports fields etc.
Don’t disregard our warnings. They refer to hazardous materials and pro-
cesses which, if ignored, can result in fatal injury or serious property damage.
Every time you intend to fly the model, check carefully that all parts connected
to it are working correctly, including RC components, control surface horns
etc. Everything must be properly located and firmly secured. Check for
possible damage, and do not fly your model unless you are confident that
everything is in perfect order.
Whenever you are holding the model, make sure that you are standing on a
safe surface and cannot slip. Wear high-grip shoes, such as trainers.
Satisfy yourself that your frequency is vacant before you switch on. Radio
interference caused by unknown sources can occur at any time without
warning. If this should happen, your model will be uncontrollable and
completely unpredictable. Never leave your radio control system unguarded,
as other people might pick it up and try to use it.
If you are to fly your model safely and avoid problems, it is essential that you
are aware of its position and attitude throughout each flight - so don’t let it fly
too far away! If you detect a control problem or interference during a flight,
immediately land the model to prevent a potential accident. Model aircraft must

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always give way to full-size aircraft. Take-off and landing strips should be kept
free of people and other obstacles.
Your RC system can only work reliably if the batteries are kept fully charged.
Never use hot, faulty or damaged batteries. It is important to observe the
instructions supplied by the battery manufacturer.
Before every flight ensure that all functions are working correctly, and carry
out a range check.
Always switch on the transmitter first, then the receiving system. When
switching off, reverse the order: receiving system first, then the transmitter.
Check that the control surfaces work in the correct “sense”, i.e. they deflect in
the direction which corresponds to the movement of the stick.
After each session remove all the batteries from the model and store them in a
discharged state (approx. 0.9 V per cell) at a temperature of about +5° to +25°
C. They must be kept out of the reach of children.
Please don’t misunderstand the purpose of these notes. We only want to make
you aware of the many dangers and hazards which can arise if you lack
knowledge and experience, or work carelessly or irresponsibly. Provided that
you take reasonable care, model flying is a highly creative, instructive,
enjoyable and relaxing pastime.
Notes on the use of NiMH batteries
Application
All Graupner NiMH battery packs and single cells are designed exclusively for typical
modelling applications in model aircraft, boats and cars.
Charging
1. NiMH batteries must always be charged using a suitable standard charger or fast
charger. For more information see the main Graupner FS catalogue.
2. Before charging an NiMH pack, allow it to cool down to ambient temperature, i.e.
approx. 20ºC. The battery should not be charged until just before use, as all
NiMH cells have a natural tendency to self-discharge due to their construction.
3. Warning:
The charge process must be supervised even if you are using a fully automatic
charger. Note the maximum permissible charge current printed on the pack or
individual cells, and do not exceed that value. Excessive charge currents can
cause NiMH cells to overheat. If the battery heats up to about 50°C when on
charge, the charge current must be switched off immediately. When NiMH cells
get hot, the pressure inside the cell case rises greatly. Every NiMH cell in a pack
is fitted with a pressure valve which is designed to prevent it exploding
dangerously in an emergency. However, the valves may be blocked or

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malfunction for some other reason, which means that an explosion is always
possible if the cell overheats seriously.
4. Warning:
If you accidentally overcharge an NiMH pack, do not touch it! Switch off the
charge current and allow the pack to cool down naturally.
5. Warning:
It is essential to avoid short-circuits involving NiMH packs. The result is an
extremely high rate of discharge which heats up the battery immediately, and this
can cause cells to burst in the same way as an overheated pack →the explosion
itself represents a serious risk of injury, and any corrosive electrolyte which
escapes from the cell can cause chemical burns.
If electrolyte escapes from a cell, take great care to avoid it getting on your skin
or in your eyes. If this should happen, rinse immediately with copious quantities
of water and seek medical assistance.
6. Never solder a wire or anything else directly to the cell case, as this may damage
the pressure valve.
7. Warning:
Never dispose of faulty or exhausted NiMH batteries in a fire →they may
explode. Don’t discard them in the household rubbish, as they constitute toxic
waste and require special treatment. Take them to your local toxic waste
collection point (ask your local council for details). It costs nothing to dispose of
exhausted cells properly, and helps preserve a clean environment, as most of the
materials can be recycled.
Notes on building and flying the AMIGO IV
Before you start building the model:
RC system components and the control surface linkages must be installed at the
appropriate stage of construction, as it may be very difficult or even impossible to fit
them later.
When you are buying a radio control system it is important to ensure that the
transmitter and receiving system are designed for use with model aircraft, and are
approved by your national Post Office approvals authority. All RC units should
possess an FTZ series approval number.
Please remember that other radio systems and radio-frequency apparatus are also
permitted to operate in the frequency ranges used by model radio control equipment,
and there is no guarantee that your system will not suffer interference caused by
such apparatus.
Depending on where you operate the model, you may need to purchase a licence to
operate a radio control system for model aircraft on the approved channels in the 35
MHz band.
If you are not sure whether this applies to you, contact your nearest Post Office
Telecommunications office. Your local model shop will also have this information.
During construction
When handling adhesives and solvent-based materials it is important to observe the
safety notes and instructions supplied by the manufacturer. Many glues and solvents
are capable of causing injury and damage to materials if they are not used com-

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petently. Take waste glue and paint to your local model shop or toxic waste collection
centre.
Note that balsa knives, pins, etc. have sharp points and edges, and should be
handled carefully to avoid injury.
Take care to keep tools, adhesives and paints out of the reach of children.
A large, unobstructed working surface is a great advantage for all types of model-
making.
If you are a relative beginner and are not sure of any process, ask an ex-
perienced modeller for help.
Flying the model
Never fly your AMIGO IV in a nature reserve or any other protected site. Please don’t
disturb the animals and plants which live in the countryside.
Trees and bushes are the natural habitat of many birds, and also serve as nesting
sites and general protection for them.
Important safety notes
You have acquired a kit which can be assembled into a fully working RC model when
fitted out with suitable accessories. However, we as manufacturers have no control
over the way you build and fly your RC model aircraft, nor how you install, operate
and maintain the associated components, and for this reason we are obliged to deny
all liability for loss, damage or costs which are incurred due to the incompetent or
incorrect use and operation of our products, or which are connected with such
operation in any way. Unless otherwise prescribed by binding law, the obligation of
the GRAUPNER company to pay compensation, regardless of the legal argument
employed, is excluded. This includes personal injury, death, damage to buildings,
damage due to loss of business or turnover, interruption of business or other direct or
indirect consequent damage whose root cause was the operation of the model.
The total liability in all cases is limited to the amount of money which you actually
paid for this model.
This model aeroplane is built and flown at the sole and express responsibility of the
operator. The only way to avoid injury to persons and damage to property is to
handle and operate the model with the greatest care and consideration at all times.
Before you fly the model for the first time it is essential to take out a special
insurance policy designed to cover modelling risks.
These safety notes should be kept in a safe place. If you ever dispose of the
model, be sure to pass them on to the new owner.
Manufacturer’s declaration:
If material defects or manufacturing faults should arise in a product distributed by us
in the Federal Republic of Germany and purchased by a consumer (§ 13 BGB), we,
Graupner GmbH & Co. KG, D-73230 Kirchheim/Teck, Germany, acknowledge the
obligation to correct those defects within the limitations described below.
The consumer is not entitled to exploit this manufacturer’s declaration if the failure in
the usability of the product is due to natural wear, use under competition conditions,
incompetent or improper use (including incorrect installation) or external influences.

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This manufacturer’s declaration does not affect the consumer’s legal or contractual
rights regarding defects arising from the purchase contract between the consumer
and the vendor (dealer).
Extent of the guarantee
If a claim is made under guarantee, we undertake at our discretion to repair or
replace the defective goods. We will not consider supplementary claims, especially
for reimbursement of costs relating to the defect (e.g. installation / removal costs) and
compensation for consequent damages unless they are allowed by statute. This does
not affect claims based on legal regulations, especially according to product liability
law.
Guarantee requirements
The purchaser is required to make the guarantee claim in writing, and must enclose
original proof of purchase (e.g. invoice, receipt, delivery note) and this guarantee
card. He must send the defective goods to us at his own cost, using the address
stated above.
The purchaser should state the material defect or manufacturing fault, or the
symptoms of the fault, in as accurate a manner as possible, so that we can check if
our guarantee obligation is applicable.
The goods are transported from the consumer to us and from us to the consumer at
the risk of the consumer.
Duration of validity
This declaration only applies to claims made to us during the claim period as stated
in this declaration. The claim period is 24 months from the date of purchase of the
product by the consumer from a dealer in the Federal Republic of Germany (date of
purchase). If a defect arises after the end of the claim period, or if the evidence or
documents required according to this declaration in order to make the claim valid are
not presented until after this period, then the consumer forfeits any rights or claims
from this declaration.
Limitation by lapse of time
If we do not acknowledge the validity of a claim based on this declaration within the
claim period, all claims based on this declaration are barred by the statute of
limitations after six months from the time of implementation; however, this cannot
occur before the end of the claim period.
Applicable law
This declaration, and the claims, rights and obligations arising from it, are based
exclusively on the pertinent German Law, without the norms of international private
law, and excluding UN retail law.
The following points are important and must be observed at all times:
•Before you fly the model check that the radio control system is working reliably,
and that all connections are secure.

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•The batteries must be charged and the range of the radio control system must be
checked before you operate the model. In particular, the radio control system
batteries must be fully charged before each session.
•Ensure that the channel you intend to use is not already in use by other
modellers. Never fly the model if you are not certain that your channel is free.
•Read and observe the instructions and recommendations provided by the
manufacturer of your radio control system and accessory components.
•Ensure that the servos are not mechanically obstructed at any point in their
travel.
•Dry cells and rechargeable batteries must never be short-circuited.
•Remove all batteries from the model prior to transporting and storing it.
•Do not subject the model to dirty or cold conditions, or high levels of humidity or
heat.
•Secure the model and your RC equipment carefully when transporting them.
They may be seriously damaged if they are free to slide about,.
•IMPORTANT: when the flight battery is exhausted, you must not dispose of it in
the household waste. Take the pack to your local battery reclamation centre.
IMPORTANT: when the useful life of the model and the transmitter are over, do
not discard them in the domestic rubbish. The electric and electronic components
in particular must be taken to your nearest electrical recycling centre. Ask your
local authority if you are not sure of its location.
Pre-flight checks
Check that the radio control system works correctly and at full range before every
flight: switch on the transmitter and the receiving system, and extend the transmitter
aerial to its full length; walk away from the model, and check that all the control
surfaces work smoothly and immediately at an appropriate distance; check also that
they deflect in the correct “sense” in relation to the stick movements.
If you are a relative beginner to this type of model flying, we recommend that you
enlist an experienced model pilot to help you check and test-fly the model.
Care and maintenance
•Clean the model carefully after every session. The model and RC components
should only be cleaned using suitable cleaning agents. Ask your model shop for
information.