Index Introduction ................. 6 Service Centre ..............6 Intended use ..............7 Technical data ..............7 Declaration of conformity ..........7 Symbols explication ............8 Gluing instructions ............. 8 Safety notes ................ 8 Procedure depending on the version ....... 9 Required tools and facilities (not included) ....
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Fix left and right trim rudders ..........18 Assembly steps 18 to 23 only for RC version ....19 Glue the servo holder (51) ..........19 Refine the V-tail halves (32) ..........19 Refine the rudders ............19 Refine the rudders (32), insert the rudder hinges (53) ..20 Glue the rudder hinges (53) ..........
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Glue the cover part (20), fix the surface with rubber bands (43)................... 27 Assembly step 31 only for free-flight version ....27 Insert the wire (27) for curve control in the fuselage, glue the pin (25) ................28 Assembly step 32 only for free-flight version ....28 Bend and glue the trim spring (30) ........
Introduction Thank you very much for purchasing the Graupner Der kleine UHU. This free-flight is extremely versatile. Read this manual carefully to achieve the best results with your Der kleine UHU and first of all to safely control your models. If you experience any trouble during operation, take the instructions to help or ask your dealer or Graupner Service Centre.
17,7 dm² Flight weight approx. 195 g Wing load approx. 11 g/dm² Declaration of conformity No. 7892, Servo DS 101 Graupner/SJ declares that the product is conform to EU norms. EMV 2004/108/EC: EN 61000-6-1:2007 EN 61000-6-3:2007 7 / 36 4316_jh_V1...
Symbols explication Always follow the information marked with the CAUTION WARN- symbol. The signal word WARNING indicates the potential for serious injury, the signal word CAUTION indicates possibility of lighter injuries. The signal words note and caution indicate potential damages to objects.
Procedure depending on the version Depending on whether you want to build the free-flight version or the RC version, the approach is different. If the model is assembled as free-flight version, it cannot be converted to RC version. Therefore pay attention to the related assembly steps sequence.
Glue the rear edge of the wing (37) to the angle ledge (36) Note: Due to the water content in the UHU glue, the wing edge (37) may become curved in the gluing area. To avoid it, lightly moisten the wing edge gluing area from the top with a kitchen sponge. Immediately remove the excessing glue.
Glue the balsa junction part (38) to the profiled wing Refine the upper side of the balsa junction part (38) Note: Refine the balsa junction parts with the balsa cutter first. CAUTION INJURY RISK, MOVE THE CUTTER ALWAYS IN THE OPPOSITE DIREC- TION OF YOUR FINGERS AND HANDS.
Refine the balsa junction part and the lower side of the winglet Sand the central part of the half-wing until it has a V-form 40 mm 4° Glue the V-formed half-wing No. 531.19 13 / 36 4316_jh_V1...
Draw the fuselage central line Center the fuselage base (1) on the central line No. 531.19 Glue the bulkheads 3, 4, 5, 6 and the tail boom 2 Note Check the perpendicular position of the bulkheads with the angle template (48), do not glue the template. Roughen the part of the carbon fiber tube that is going to be glued.
Glue the bulkheads (7) and the spacers (8) Glue the fuselage nose (11 - 13) to the fuselage lateral plates (14) Glue the spacers (9, 10) 16 / 36 4316_jh_V1...
Assembly steps 18 to 21 only for free-flight version Glue the trimming weight (33) and the reinforcement (24) Glue the V-tail rudders No. 531.19 17 / 36 4316_jh_V1...
Refine the rudders (32), insert the rudder hinges (53) Glue the rudder hinges (53) Note: Fix the V-tail parts (32) and the inserted rudder hinges (53) by piercing them with the fixing needles. Fill the holes that remain after removing the needles with cyano glue. Immediately remove the excessing cyano glue.
Glue the V-tail halves (32) No. 531.19 No. 531.19 Assembly step 22 free-flight and 24 RC version Fix the fuselage and the angle template (46) 21 / 36 4316_jh_V1...
Assembly step 23 only for free-flight version Glue the V-tail (32) to the tail boom (2) Assembly steps 25 to 27 only for RC version Glue the V-tail (32) to the tail boom (2) Assembly step like by the free-flight version (see above), only the distance of the V-tail parts is different.
Assembly step 24 free-flight and 28 RC version Sand the fuselage sides until they are smooth Assembly step 25 free-flight and 29 RC version Glue the fuselage lateral plates (15) and fix them with fixing needles Note: Insert the pins (21 + 22) just to center the side parts. After hav- ing fixed the side parts, remove the pins before the glue has hardened.
Assembly step 26 free-flight and 30 RC version Round the fuselage lateral sides, sand the upper side of the fuselage until it is smooth and flat Note: Firstly refine the fuselage lower part with the balsa cutter or with the balsa plane. CAUTION INJURY RISK, MOVE THE CUTTER ALWAYS IN THE OPPOSITE DIREC- TION OF YOUR FINGERS AND HANDS.
Assembly step 32 only for RC version Glue the pin (19), glue the canopy cover parts (17,18) together and fix them properly, Glue the cover part 16 5 mm Assembly step 28 free-flight and 33 RC version Round the upper side of the fuselage and the canopy 26 / 36 4316_jh_V1...
Assembly step 29 free-flight and 34 RC version Glue the towline hook (23) and the pins (21, 22) Assembly step 30 free-flight and 35 RC version Glue the cover part (20), fix the surface with rubber bands (43) Assembly step 31 only for free-flight version Note The curve control function in the free-flight version: Starting point is a trimmed model that flies straight on.
Insert the wire (27) for curve control in the fuselage, glue the pin (25) Assembly step 32 only for free-flight version Bend and glue the trim spring (30) ca. 10° 28 / 36 4316_jh_V1...
Assembly step 33 only for free-flight version Insert the wire (27) in the trim rudder hole and make a knot Note The wire must be knotted to the washer (26) with tension. Knot the wire so many times as required to obtain the necessary ten- sion.
Assembly step 34 free-flight and 37 RC version Balance the center of gravity of the model No. 3663.50 Assembly step 35 free-flight and 38 RC version Fly, trim No. 3663.50 No. 3663.50 30 / 36 4316_jh_V1...
Parts list Description Pieces Material Dimensions in mm Fuselage lower part Balsa Laser part 6 Tail boom Carbon fiber Ø 6/4 x 550 Nose bulkhead Plywood Laser part 3 Bulkhead Plywood Laser part 3 Bulkhead Plywood Laser part 3 Bulkhead Plywood Laser part 3 Bulkhead...
The cur- rent version can be found on the Internet at www.graupner.de the relevant product page. In addition, the company Graupner has no responsibility or liability for any errors or inaccuracies that may appear in construction or operation manuals.
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