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MANUAL
Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck *
www.graupner.de

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Summary of Contents for GRAUPNER TANGENT Alpina 2501 ELEKTRO ARC

  • Page 1 MANUAL Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 2: Table Of Contents

    Wing servos wiring....................12 Finishing........................13 Radio Control Equipment Installation...............13 Balancing & Adjusting..................14 Recommended control throws.................14 First Flights........................15 Safety...........................16 Parts List........................18 ........................19 Pictures Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 3: Alpina 2501 Elektro - High Performance Model Glider

    Thank you for choosing the ALPINA 2501 ELEKTRO high performance electric glider. We wish you much success and enjoyment with your new model. Your TANGENT model kit from the home of GRAUPNER represents a mature design and the product of many years experience in the manufacturing of high performance model aircraft.
  • Page 4: Kit Contents

    Spinner: Precision Spinner (Grp. #6040.4) Propeller: Folding Carbon Fibre (Grp. #1336.33.18) Speed Controller: Brushless Speed Controller 60A (Grp. #7236) Battery: LiPo Battery 3/2600 mAhr (Grp. #7652.3G2) Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 5: Assembling Your Alpina 2501 Elektro

    Note that once installed, the front compression strut will restrict access to the fuselage opening, so you may wish to Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 6: Installing The Winch Hook (If Required)

    1 -2 layers of fibre-glass cloth treated with a suitable resin to ensure a strong bond with the inside of the canopy. Again, be sure to Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 7: Installing The All-Flying Tail Plane

    Note: The joiner tubes installed in the tail-plane halves incorporate the integrated All Moving Tail-Lock mechanism. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 8: Vertical Stabiliser And Rudder

    Customers building the ARF version will need to carefully remove a little of the covering material around the fixing point. Fig 6 & 7. Rudder Control Horn Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 9: Motor Installation

    Mark the position carefully with a pencil. Now remove the two protective strips from the inside of the fuselage opening and tack the servo frame in place using an instant Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 10: Install The Rudder & Elevator Servos

    Balsa pieces as guides, and tape it firmly in place. Now mark the position of the holes for incidence pins on the wing root by working through Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 11: Installing The Nylon Wing Locks

    The servos themselves are simply bonded to the inside of the servo cover scoop using suitably thickened epoxy and screwed onto the plywood frames (see also the Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 12: Installation Of The Wing Control Horns

    Don’t pull on the leads! ARF customers should now move to installation of the radio control equipment while those building the ARC version should now begin the finishing stage. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 13: Finishing

    Do so carefully, removing only the minimum amount of material necessary to install and operate the servos. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 14: Balancing & Adjusting

    The following recommended control throws have been determined following several test flights, confirmed by several different model pilots. We strongly recommend that you begin with the recommended throws and only change them with experience. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 15: First Flights

    The slightest deviation in manufacture or construction can lead to minor variations in flying characteristics and control responses. Test flying is the means to optimise the centre of gravity and generally fine-tuning the control response. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 16: Safety

    • system and maintain it responsibly. Always give due consideration to other model flyers, provide ample air-space • and observe the local system of channel allocation. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 17 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.de...
  • Page 18: Parts List

    Wings Plastic Ready made Self tapping screws Wings Steel M2*10 Installation notes Wings Paper DIN A5 Note: Contents and technical details subject to change without notice. Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 19: Pictures

    Pictures Fig. 1 Fig. 2 Fig. 3+4 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 20 Fig. 5+6 Fig. 7 Fig. 8 Fig. 9 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 21 Fig. 10 Fig. 11 + 12 Fig. 13+14 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 22 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.de...
  • Page 23 Fig. Finish 6+7 Fig. Finish 8 Fig. Finish 9+10 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...
  • Page 24 Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck * www.graupner.de...

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