MANUAL Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Contents: ALPINA 2501 ELEKTRO - High Performance Model Glider.....................3 Preface. ........................................................................................................................3 Kit Contents. ..............................................................................................................4 Technical Data. ..........................................................................................................4 RC functions. ..............................
ALPINA 2501 ELEKTRO - High Performance Model Glider. Alpina 2501 ELEKTRO ARC Alpina 2501 ELEKTRO ARF Alpina 2501 ELEKTRO Design Standard Alpina 2501 ELEKTRO Design Messine # 40000 # 40030 # 40015 # 40010 Preface. Thank you for choosing the ALPINA 2501 ELEKTRO high performance electric glider. We wish you much success and enjoyment with your new model.
Kit Contents. (See Detailed Parts List) 1 Pair ARC Wings - with elliptical tips, INTRO-Technik, torsion-rigid and fully integrated Ailerons and Flaps incorporating Elastik Flap Technology. TAServolocks and steel wing-joiner. 1 Fuselage – in brilliant white, with integrated Bowden cables and pre-installed elevator bell-crank. 1 Canopy - Pre-formed Carbon. 1 Pair Tail-plane with integrated joiner system, finished leading and trailing edges. 1 Rudder in preformed Balsa 1 Set pre-formed wooden parts.
Important Note regarding Styrofoam wing cores. For all joints involving Styrofoam wing cores it is essential that you do not use any solvent based adhesives, and in particular avoid use of any form of cyanoacrylate glue. Use of such adhesives will destroy the foam and render the affected parts useless. Use only solvent-free adhesives, such as Epoxy resin and/or Aliphatic Resin (white wood glue) if working anywhere near exposed areas of Styrofoam. Notes regarding the use of Epoxy Resin.
wait until the electrical connections to the wing servos have been installed before finally installing the front strut. The two struts are bonded in using suitably thickened epoxy. Fig. 1 Fuselage Compression Struts Installing the winch hook (if required) Using a flexible tape-measure, measure and mark a point 300 mm from the nose along the underside of the fuselage. Drill a 2 mm hole to accommodate the winch hook.
roughen up the inside of the canopy with abrasive paper before bonding the spring in place. Tip. Work carefully and accurately. Your patience will be rewarded by a tight fitting canopy! Fig 2. Canopy Catch Installing the all-flying tail plane. The elevator bell-crank has been loosely installed at the factory but remains to be permanently bonded into the fin.
Before fitting the joiners into the brass tubes for the first time, check that the wire joiners are perfectly straight and burr free. When pressing the tail-plane halves into place, you will feel a mild mechanical resistance which is sufficient to hold the tail-plane halves securely in-place during flight. Vertical stabiliser and rudder. The fin post has been bonded into the trailing edge of the fin at the factory and the rudder supplied in the kit requires only minimal finishing.
Motor installation Prepare the area where the motor mount is to be bonded to the inside of the fuselage nose with a course abrasive paper (80 Grit) to ensure a good bond. The motor mount should be installed about 1mm behind the edge of the fuselage nose. Tip: Fit a long nylon bolt through the centre hole in the motor mount and use the protruding part of the bolt as an aid to adjusting the precise amount of down-thrust and side-thrust.
adhesive – before bonding the frame securely into the fuselage with a generous bead of thickened epoxy. Allow to cure. Tip: Some may wish to complete the job by adding a layer of wetted fibre glass cloth over the entire servo frame allowing about 10mm extra on both sides to bond with the fuselage sides. Fig 9. Battery & Servo Frame Install the rudder & elevator Servos.
the holes in the opposite side of the fuselage using a sharpened 3mm steel rod (or similar tool). Remove the wing and drill the holes in the wing root using a 3mm twist drill. Remember to take account of the wing dihedral; the holes should be drilled parallel to the wing joiner. Once both wings have been marked and drilled, the four incidence pins can be bonded into place using a slow setting thickened epoxy.
installation note supplied with the TA servo LOCK set). Be sure to roughen the surface of the servo cover to ensure a good bond. Tip: Protect the servos with heat shrink sleeve. This makes for easy removal and replacement of the servo, but care should be taken so as not to overheat the servos while applying the sleeve. Installation of the wing control horns.
Finishing. Film covering – all the wooden surfaces are supplied pre-sanded, but will benefit from further fine finishing prior to covering. Follow the instructions provided with the covering materials, always taking care to make all joins in the direction of the air-flow. As an alternative to our own high stable decorative vinyl based covering material, we can also recommend Oracover (Profilm) covering materials.
Wing servo installation - Ensure that the servo output arms are set at 90° with the servo electrically centred. Prepare the linkages, using threaded rod, clevises and lock-nuts remembering to apply a drop of thread-lock to the lock nuts or apply a short length of heat-shrink over the joint. Secure the servo covers in place using the four small screws provided. Use a countersink tool to recess the screw heads into the servo covers to improve both the appearance and the aerodynamic performance.
The throws are measured at the point of maximum deflection – in millimetres: Normal Flight Rudder Elevator Ailerons Flaps Up Down 9 10 0 9 5 0 Left/Right 30 / 30 We recommend about 20% exponential in the elevator channel.
Avoid repeated low altitude hand launches on a flat site as this is the most likely opportunity for damage to occur as there is little time to made adequate corrections when the model is flying close to the ground. Ensure that both transmitter and receiver batteries are fully charged and carry out a thorough range test in accordance with the instructions supplied with your radio control equipment.
If in doubt – please ask. If you are unsure about any aspect of flying your model safely, please seek the advice of an experienced aero-modeller or contact your dealer. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Parts List.
Pictures Fig. 1 Fig. 2 Fig. 3+4 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Fig. 5+6 Fig. 7 Fig. 8 Fig. 9 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Fig. 10 Fig. 11 + 12 Fig. 13+14 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Pictures for Finish Fig. Finish 1+2 Fig. Finish 3+4 Fig. Finish 5 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Fig. Finish 6+7 Fig. Finish 8 Fig. Finish 9+10 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.
