GRAUPNER 9397 Manuals

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