GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
No liability for printing errors. We reserve the right to introduce modifications.
10/2006
1
Order No.
9397
Instructions
YAK 54
For two-stroke engines of up to 20 cc capacity
The model requires a four-channel radio control system
Specification
Wingspan approx.
1620 mm
Overall length excl. spinner approx.
1430 mm
Wing area approx.
49 dm²
Tailplane area approx.
12 dm²
Total surface area approx.
61 dm²
All-up weight according to fittings approx.
3600 g
Longitudinal dihedral
0 to + 0.5º
Centre of Gravity approx.
120 mm aft of the root leading edge
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 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.
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