GRAUPNER 9577.MX Instructions Manual

Order No. 9577

9577.MX

Instructions

ULTIMATE

For two-stroke motors up to 20 cc capacity

This model requires a four-channel radio control system

Specification

Wingspan approx. 1400 mm
Fuselage length excl. spinner approx. 1370 mm
Wing area approx. 66 dm²
Tailplane area approx. 12 dm²
Total surface area approx. 78 dm²
All-up weight according to fittings approx. 4100 g
Longitudinal dihedral 0 - 0.5°, top wing
0°, bottom wing
Centre of Gravity approx. 100 - 120 mm aft of the root leading edge

(top wing)

Caution: This model is not a toy!
If you are a beginner to this type of powered model, please ask an experienced model
flyer for help and support. If you attempt to operate the model without knowing what you
are doing, you could easily injure yourself or somebody else. Please keep your safety
and well-being in mind at all times.

Important: before you start construction

Even if you have already built a large number of RC models please read right through
these instructions and check that all the kit components are actually present. We have
taken great trouble to keep construction as simple as possible, without making any
compromises in the area of safety.

Note regarding the film covering

Minor creases or bubbles may develop in the film covering due to major fluctuations in
weather conditions (temperature, humidity etc.); in rare cases you may even find a slight
warp in a component. These minor faults are in the nature of film-covered built-up
wooden structures, and can easily be corrected using a heat gun, as commonly used for
modelling.
Creases: Blow warm air over the area and rub down with a soft cloth.

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

No liability for printing errors. We reserve the right to introduce modifications. 02/2007

1

Wing warp: Hold the panel twisted gently in the opposite direction to the warp, and

apply warm air to remove the creases from the covering.

Caution! do not heat the film more than is absolutely necessary. If the air or the iron is
too hot, the film may melt and holes may be formed.

This model is highly pre-fabricated and can be built in a very short time. However, the
work which you have to carry out is important and must be done carefully. The model
will only be strong and fly well if you complete your tasks competently - so please work
slowly and accurately.

When self-tapping screws have to be screwed into wood, apply a little white glue
to prevent them shaking loose: just squirt white glue into the hole and fit the
screw.

Safety notes and warnings relating to model aircraft
powered by glowplug motors and petrol engines

• Be sure to read right through the instructions covering assembly and

operation of your model before you attempt to operate it for the first time.

• These safety notes are an integral part of the instructions. Please keep them
and the operating instructions in a safe place. If you ever dispose of the model
be sure to pass them on to the new owner.

• Powered model aircraft are very demanding and potentially dangerous
machines, and call for a high level of technical knowledge and skill from the
operator, together with a responsible attitude.

• Powered model aircraft are not suitable for young persons under 18 years of
age.

• 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.

• The operator of the model must be in full possession of his or her bodily and
mental faculties. As with car driving, operating a model aircraft under the
influence of alcohol or drugs is not permissible under any circumstances.

• Radio-controlled model aircraft may only be employed for the purpose
intended by the manufacturer. They must never be used as man-carrying
machines. We do not permit this model’s use in any way except as a model
aircraft.

• 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. Do not make any modifications of any kind to the design features
or materials. 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 aircraft and try to fly it without
completing a course of training first. Model flying is a skill which has to be
learned in just the same way. We suggest that you ask for help from an
experienced model flyer, or join a model club or flight training school. Your
local model shop and the specialist magazines are excellent sources of
information.

• It is fundamentally essential to set the Centre of Gravity (CG) and control
surface travels correctly. Adjust the model until they are exactly correct.

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

No liability for printing errors. We reserve the right to introduce modifications. 02/2007

2

• Radio control system: satisfy yourself that your frequency is vacant before
you switch on. Check your RC system regularly as its components eventually
wear and need to be replaced or repaired. 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. Your RC system can only work reliably if the batteries
are kept fully charged.

• Don’t ignore our warnings. They refer to materials and situations which, if
ignored, can result in fatal injury or permanent damage.

• You alone are responsible for the safe operation of your radio-controlled
model and motor.

• 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.

• Propellers and other rotating parts which are powered by a motor represent a
permanent hazard and present a real risk of injury. Don’t touch them with any
part of your body. For example, a propeller spinning at high speed can easily
slice off a finger.

• Keep well clear of the rotational plane of the propeller. You never know when
some part may come loose and fly off at high speed, hitting you or anybody
else in the vicinity. Never touch the revolving propeller with any object.

• Take care with loose clothing such as scarves, loose shirts etc. Flapping cloth
can easily be sucked into the area of the propeller and then get tangled in the
blades. This is extremely dangerous.

• If there are passers-by or spectators at your flying site, make sure that they
are aware of the dangers inherent in your activity, and insist that they keep a
safe distance away (at least 5 m).

• 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 and other unwanted
effects.

• Model fuels are toxic; do not allow them to come into contact with your eyes
or mouth. Fuel should always be stored in clearly marked containers, out of
the reach of children.

• Never run an internal combustion engine in an enclosed space such as a
cellar, garage etc. Model motors produce lethal carbon monoxide gas just like
full-size engines.

• Motors should only be run in the open air!

• 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.

• Model fuels are volatile and highly inflammable. Keep them well away from
open flames, excessive heat, all possible sources of sparks and anything else
which could result in a fire. Do not smoke in the immediate vicinity of fuel or
fuel vapours.

• Model engines generate a lot of heat. The motor and silencer in particular
become very hot when running, and stay at a high temperature for quite a
while. Touching the hot parts can give you serious burns, so take care
especially when carrying out adjustments - wear protective gloves. Hot
engines can even start a fire under certain circumstances.

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

No liability for printing errors. We reserve the right to introduce modifications. 02/2007

3

• When the motor is running it expels hot toxic gases from the exhaust together
with very hot fluid combustion residues which can burn you if you are not
careful.

• Remove all unused fuel from the fueltank and motor after every session.

• Every time you intend to operate your model check carefully that it and

everything attached to it (e.g. propeller, linkages, control surfaces etc.) is in
good condition and undamaged. If you find a fault, do not fly the model until
you have corrected it.

• Model engines are usually started with the help of an electric starter which
should be fitted with the appropriate adaptor where necessary. With fixed­wing models an alternative is to use a “chicken stick” - a length of thick
wooden dowel with a piece of water hose pushed over it.

• Many model motors are very noisy, producing a sound level much higher than
85 dB (A), which implies that you should wear ear defenders. Never run a
motor without the silencer fitted. Even with a silencer, model engines can
easily disturb your neighbours. Don’t run engines when other people expect
peace and quiet.

• If you start your motor when the model is standing on loose or sandy ground,
the propeller will suck up sand and dust and hurl it around, and it could easily
get in your eyes and do damage. Wear protective goggles at such times.

• Take care that the glowplug clip and the glow lead cannot get tangled in the
propeller or other rotating parts. Check the throttle linkage too.

• Take particular care when carrying the model with the motor running. Hold the
rotating parts well away from you!

• Be sure to keep an adequate supply of fuel in the tank. Don’t continue to fly
the model until the tank is drained dry.

• Never fly directly over people.

• Never fly directly towards people.

• Keep a safe distance from residential areas: at least 1.5 km “as the crow flies”.

The best solution is to join a model flying club and use the approved flying
site. Always keep well clear of high-tension overhead cables.

• Whenever you are working on the motor, make sure that you are on a safe
surface and cannot slip. Get used to holding the model really securely.

• Take-off and landing strips should be kept free of unauthorised people and
movable obstacles, particularly when a model is using the strip.

• Watch the aeroplane constantly while it is in the air. Models must always give
way to full-size aircraft.

• Don’t operate your aircraft from public roads, squares, school playgrounds,
public parks or sports grounds etc., and ensure that you are always in full
control of the model.

• It is important that you are able to stop your engine at any time. This is
achieved by adjusting the throttle so that the barrel closes completely when
you move the throttle stick and trim to their end-points. If this does not work,
pinch the fuel feed line between your fingers or pull it off the carburettor.
Never try to stop the motor by grasping the flywheel, propeller or spinner!

• All model flyers should behave in a manner which minimises the danger to
people and property. Never act in any way which will disturb other flyers and
jeopardise safe, orderly flying at the site.

• In legal terms our models are classed as aircraft, and as such are subject to
legal regulations and restrictions which must be observed.

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

No liability for printing errors. We reserve the right to introduce modifications. 02/2007

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