Aeros Discus 12 Owner's Manual
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Aeros Discus 12 Owner's Manual

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OWNER / SERVICE
Tel: (380 44) 455 41 18,
E-mail: aerosint@aerosint.kiev.ua,
HANG GLIDER
MANUAL
Size: __________________
Date of production:
____________________
Serial number:
____________________
AEROS Ltd.,
Post-Volynskaya St. 5.,
Kiev, 03061,
UKRAINE
Fax: (380 44) 455 41 16
http://www.aeros.com.ua
Manufactured by:

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Summary of Contents for Aeros Discus 12

  • Page 1 HANG GLIDER MANUAL OWNER / SERVICE Size: __________________ Date of production: ____________________ Serial number: ____________________ Manufactured by: AEROS Ltd., Post-Volynskaya St. 5., Kiev, 03061, UKRAINE Tel: (380 44) 455 41 18, Fax: (380 44) 455 41 16 E-mail: aerosint@aerosint.kiev.ua, http://www.aeros.com.ua...

  • Page 2: Table Of Contents

    Discus Owner / Service Manual Table of Contents Introduction..………………………………………………………………………………… Technical Information and Operating Limitations ............Discus Reassembly After Shipping and Breakdown for Shipping Procedures ....Reassembling The Discus After Breakdown For Shipping..………………………..To Remove The Rear Leading Edges For Shipping............Discus Set-Up Procedure .....................

  • Page 3: Introduction

    Thank you for purchasing an Aeros glider. We encourage you to read this manual thoroughly for information on the proper use and maintenance of your Aeros glider. If you have access to the Internet, please visit us regularly at http://www.aeros.com.ua We wish you a safe and enjoyable flying career.

  • Page 4: Discus Reassembly After Shipping And Breakdown For Shipping Procedures

    DISCUS REASSEMBLY AFTER SHIPPING AND BREAKDOWN FOR SHIPPING PROCEDURES The front leading edge is 60 mm oversleeved with 62 mm at the crossbar junction. The rear leading edge is 50 mm oversleeved with 52 mm at the washout tube “outboard sprog” attachment point. The rear end of the aft leading edge contains a receptacle for the tip wand, secured in place by a clevis pin and a small screw 12 mm from the end of the tube.

  • Page 5: To Remove The Rear Leading Edges For Shipping

    Fold the tip of the sail over, roll it up and re-install the tip bags. Place a velcro ties around the glider at this point. Put the glider bag back on and zip it up ( Photo 4 Photo 4 TO REMOVE THE REAR LEADING EDGES FOR SHIPPING follow these steps This process will basically be the reverse of installing the rear leading edges after shipping.
  • Page 6 But you can feel free to install them the other way around, i.e. blue marked battens go to the right and red marked battens go to the left. This is because Aeros do not tune glider’s turn by changing battens camber, so originally your glider comes with left and right corresponding battens symmetrical between each other’s.
  • Page 7 8. Spread the wings all the way and check all cables for any twisted thimbles or tangled cables. At the rear of the keel find the shackle of the sweep (crossbar tensioning) wire. Pull the shackle out the rear end of the keel pocket, and check that the sweep wire is not wrapped around the keel.
  • Page 8 13. The next step is to deploy the outboard sprogs and secure them in position). Before doing so, working through the sprog access zippers, preflight the following items: a. Internal ribs to confirm that they are fully zipped up. b. The sprog hardware, and the sprog cable attachments at both ends of each sprog cable. To deploy and secure each sprog, swing the sprog away from the leading edge and align it in the center of the rear end of the sprog access zipper.

  • Page 9: Preflight Procedure

    PREFLIGHT PROCEDURE Conduct a complete preflight inspection of the glider, checking all assemblies, which have not already been checked. Every bolt, nut, pin, safety ring, and fastener of any kind should be checked during every pre-flight. A full pre-flight inspection should precede every flight you make, not just the first flight of the day.

  • Page 10: Laying The Glider Down Flat

    Check the cables at the control bar corners, making sure there are no kinks or twisted thimbles. Check for proper installation of all nuts and safety rings at the control bar corners. Unzip the center zipper. Check the sweep wire for wear where it passes around the kingpost channel ( Photo 21 Check that the routing of all VG ropes and pulleys is clear and...

  • Page 11: Speed To Fly

    Warning: It is important that you do not take off with VG on more then ½ length of VG rope. The glider with VG more than ½ on becomes easier to stall and the roll response gets longer. With low speed during take off it can lead to unintended stall.

  • Page 12: Using The Vg System

    USING THE VG SYSTEM The Discus VG system uses a reduction system of pulleys between the central part of the crossbar and the kingpost channel and also inside the downtube to enable a wide VG range. The change in airframe nose angle from VG loose to tight is over 2 degrees.

  • Page 13: Discus Breakdown

    DISCUS BREAKDOWN Breakdown of the glider is the reverse of assembly. 1. Start with the VG set full loose. Remove the nosecone. Remove any instruments. 2. Detach the bottom front wires at the noseplate. 3. Unzip the sprog access zippers all the way to the leading edge end of the zippers and put out the outboard sprogs. 4.
  • Page 14 11. At the wingtips, lay the sail at the tip out flat, and fold the wingtip forward over onto the bottom surface of the sail ( Photo Photo 26 Photo 27 Working from the trailing edge, roll the sail tightly to the leading edge ( ), and install the tip cover bag.

  • Page 15: Discus Stability Systems

    14. Install the glider bag. Flip the glider over onto the ground. Detach the basebar. Put the battens and the tip wands in the batten bag and stow it in the rear of the glider between the leading edges, same as basebar ( Photo 31 15.

  • Page 16: Discus Sprog Adjustment And Flight Testing

    DISCUS SPROG ADJUSTMENT AND FLIGHT TESTING The Discus uses outboard sprogs in combination with one transverse batten on each sprog. Each transverse batten spans two top surface battens, so a total of four top surface battens are supported. The sprog system is the primary component of the system, which provides pitch stability.

  • Page 17: Maintenance

    If you have a question about the need to repair or replace some part of your glider, feel free to contact your dealer or Aeros directly. It is not always obvious which items require attention and which may not. Minor dents or dings in a non-critical location on an airframe tube may not require any repair or maintenance.
  • Page 18 Although we use the most expensive and the best available fiberglass material for the tip wands, these wands are not indestructible. Proper use of Aeros tip wands can greatly extend the service life of the wands. There are a few important things to remember to extend the service life of the tip wands: -try to avoid landing on a wing tip, the tip wand can easily get damage or brake by forceful contact with the ground;...

  • Page 19: Removing The Sail From The Airframe And Re-Installing

    REMOVING THE SAIL FROM THE AIRFRAME AND RE-INSTALLING Many maintenance and repair procedures will require the removal of the sail from the frame. Please follow these instructions when removing and reinstalling the sail. Please read all the instructions for each operation before beginning. SAIL REMOVAL You will need an unobstructed area 2 m by 9 m (6x30 ft).
  • Page 20 7. Mount the sail mount webbing anchor straps at the front leading edge tubes and sail retainer webbing strap to the keel tube with screws. 8. Reconnect the bottom surface center zipper at the nose, zip part way up, and install a securing zip rope at the nose. 9.

  • Page 21: Discus Reassembly After Shipping In Two Meters Long Package (Discus B Model Only)

    DISCUS REASSEMBLY AFTER SHIPPING IN TWO METERS LONG PACKAGE (Discus B model only) 1. Lay the glider down on a smooth, clean work surface. Remove the two meters glider bag. Unfold the six meters glider bag with the sail to its full length and get the frame out ( Photo 33 Photo 33 2.
  • Page 22 Insert the middle leading edge into the front leading edge and at the same time insert the rear crossbar into the front crossbar ( ). Make sure the button springs in the leading edges and crossbars are fully engaged into respective holes. Photo 36 Photo 36 Photo 37...

  • Page 23: Discus Breakdown For Shipping In Two Meters Long Package (Discus B Model Only)

    DISCUS BREAKDOWN FOR SHIPPING IN TWO METERS LONG PACKAGE (Discus B model only) Discus breakdown in two meters long package is basically the reverse of Discus reassembly from two meters long package. Refer to the pictures in the section above if necessary. After the sail has been removed from the frame (see the section “Removing the sail from the frame and re-installing”) and rear leading edges have been unplugged, proceed to the following...
  • Page 24 5. Carefully fold the sail in halves, folding the top surface of one wing to the top surface of another wing. Fold the sail along the leading edge ( Photos 42-44 Photo 42 Photo 43 Photo 44 Photo 45 Put the sail into the 6 meters glider bag and zip the glider bag up ( Photo 45...
  • Page 25 6. Put two velcro ties under the glider bag with the sail. Carefully pack up the frame on top of the glider bag with the sail. Put down the front leading edges / keel / front crossbar assembly first. Slide the front crossbar forward to align its rear part with the rear part of the front leading edges.
  • Page 26 9. Put the glider into the 2 meters glider bag and tie up the glider bag from its end surface ( Photo 49 Photo 49 The glider is ready for shipping ( Photos 50-51 Photo 50 Photo 51...

  • Page 27: Glider Tuning

    GLIDER TUNING CG ADJUSTMENT This has already been covered in the section of this manual –“Trimming Your Glider in Pitch”. TURN TRIM Turns are caused by an asymmetry in the glider. If you have a turn, first try to make the glider symmetrical in every way. If a turn only appears at VG settings of 3/4 to full tight, it may be an indication that the outboard sprogs are set asymmetrically.

  • Page 28: In Closing - A Few Final Words On Your Safety

    - Your glider is delivered to you ready to fly. Do not make any adjustments, which are not described in this manual. - If you are in doubt about any aspect of your glider, you should consult your dealer or Aeros for advice.

This manual is also suitable for:

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