500 West Blueridge Ave • Orange, CA • 92865 • Phone 714
Contents
1. 7 T D 206 000 AD Q Z21 Safety Ring 58 1011 15 5 1 168 007 28 64 33 2 LHP T D14 200 000 AD LEID PERRA 2 0 0 213 000 21 Safety Ring 5 1011 9 5 5 TL 168 007 28 64 33 Tarr pra 200 000AD _ 10 200 164 3 3 OP 0 223 000 7 FL D 14 222 000 AD lapping Screw 4 2 13 11 206 1844 8 Washer M5 DIN 125 6 Nut M5 self locking DIN 985 7 lapping Screw 4 2 13 12 20 1802 4 OP I D 14 221000 AEROS Low HP T D14 220 000 4D ARS E Boy ER DAR 7 191000 4 015 330 000 0 13 014 201000 20 27 S gt gt Z D15 550 000 AD J OPT D14 220 000 AD y 2 6 OPT D15 550 000 AD gt A B C BE OF T DM L00 j LHP T D15 200 000 AD 2227 Zakidyshev 0302061 CUNTRUL FRAME WITH CABLES SET2. Photo 11 10 Working from the end of the leading edge facing the nose hold the wand in one hand and grasp the tip wand cam lever Pull aft on the cam lever and stretch the sail to the end of the wand Fit the cup against the end of the tip wand and pull aft and towards the wand so as to lever the cup onto the wand Photo 12 Photo 12 11 Cam over the tip wand cam lever tensioning the sail at the tip Holding the end of the leading edge tube in one hand grasp the cam lever and rotate the tip wand cam lever towards the keel and then towards and against the leading edge Keep the cam lever parallel to the ground as you cam it over Photo 13 Photo 13 Close the cam lever access with Velcro old models or zipper new models Photo 14 12 Install the last four outboard top surface battens Engage the remaining spring batten tips in the trailing edge at this time Photo 14 13 The next step is to deploy the outboard sprogs and secure them in position Before doing so working through the 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 Fully close the sprog access zipper and this will secure the sprog in the pro
3. OIHLN3OO3 3811 31 5 86500510 5 5 Q3 IHWJSSV EON FENL 31 71715026510 9715 251 VrFLSQOSIG Loo Og lL 050 821502610 v Sn3SIq 9901 31 puey poa quiesse 940 37 puey 000 StL VrLOSQ 09 9 SIA 3 12 LLOL 585 1 5 9XGc 09292 M3HOS 31 0460 3gn 31 ZOO ZEL WrlLOSG 9 ond LOO ZEL VErLOSG QuBu 000 tel VFLOSO 3914 1 Qv 115 SNISNdS 59 gELSnosIa 03180 4889 3801437 VELSNOSIC aV 10006 250 SOGENY 2 10441 11 puey pa quiesse 940 31 puey 000 SEL VFLOSQ 09 9 SIA319O LLOL 585 AL343VS 60 9XGc 09292 M3HOS yel 3an 31 149 38n L 31 00 Z L VFLOSQG 9nd 100726 50 0494 ond 000 tel 4 86502510 5502510 1502510 5 5 821502510 72502510 N 3801 31 OSa 11 puey uMOUS 990 37 puey LAAlY GNI 18 0LX8 v L3AIH
4. Photo 47 8 Tie up the glider package with remaining velcro ties Photo 48 Photo 48 26 11 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 27 GLIDER TUNING 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 AIRFRAME Check the leading edges for possible bent tubes Check that the keel is not bent to one side Check for symmetrical twist in the leading edges by checking for symmetry in the alignment of tip wand receptacles BATTENS Check the battens for symmetrical shape TIP WAND RECEPTACLES ROTATIONAL ALIGNMENT The plastic plug which fits directly into the rear leading edge determines the rotational alignment of the tip wand This plug is secured against rotation by a small screw in the end of the leading edge There are five holes in the plastic cap allowing for two notches of rotational adjustment on either side of the normal center hole Photo 52 Prior to removing the securing screw first use a sharp knife or another object to scri
5. ie taya 14 Discus Sprog Adjustment and Flight Testing 15 ER 16 Removing the Sail from the Airframe 18 Discus Reassembly After Shipping Two Meters Long Package Discus Model Only 20 Discus Breakdown for Shipping in Two Meters Long Package Discus B Model Only 22 UOT P M 26 In Closing Few Final Words on Your 27 20180165 ae LULA sap y ME G 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 htip www aeros com ua We wish you a safe and enjoyable flying career Aeros Ltd TECHNICAL INFORMATION AND OPERATING LIMITATIONS The Discus has been designed for foot launched soaring flight has not been designed to be motorized tethered towed can be towed successfully using proper procedures Flight operation of the Discus should be limited to non aerobatic maneuvers those in which the pitch angle will not exceed 30 degrees nose up or nose down from the horizon and the bank angle will not exc
6. 1489 10 RIGHT BOTTOM FITTING 20 1270 PLASTIC t 0 0 OPT D 202 000 PLASTIC 0222222 WASHER AEROS 2772860047 CODES ASSEMBLED RIGHT BOTTOM FITTING 4 206 1488 1 OPT D 21 5 005 WD 2 CBT21 206005WD Ports List MATERIAL VENDOR NOTE 0 213 003 12X18H10T 6 0 8 19 7 CBT21 53206005WD 12X18H10T BUSH 08 0 8 L 21 6 4 1 1206 1488 BAJI10 LEFT BOITOM FITTING AEROS ASSEMBLED LEFT FITTING 10 200 164 3 3 OPT D 223 000 7 F D13 222 000 AD lapping Screw 4 2 13 11 206 1844 8 Washer M5 DIN 125 6 Nut M5 self locking DIN 985 lapping Screw 4 2 13 12 20 1802 4 0 013 221000 AEROS o T D13 220 000 4D ASSEMBLED BASE BAR M 7 OPT D14A 191 000 AD 6 OPT D14 550 000 AD J OPT D14 220 000 AD m lh j LHP T D14 200 000 AD 2277 Zakidyshev 0302 06 CLIN TRLIL FRAME WITH CABLES SET 23 Bolt 6 58 OCT 121160 80 9 SC 124 24 9 000 11 OP T D 207 000 22 Washer M6 DIN 125 29 RF20151ANC 19 Nut M6 self locking DIN 985 18 Blind Rivet d4x10 _ 12 0 0 245 000 20 M8 OS 133059 60 27 20 1270 14 511 154 000 10 UP 7 0 202 000 16 S 11 206 000 19 Nut M6 self locking DIN 985 26 200 14 9 oum m 21 Safety Ring 5881011 15 5 TL 166 007 Lue 0572142000004
7. HANG GLIDER DISCUS OWNER SERVICE MAN UAL 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 Qaerosint kiev ua http www aeros com ua Discus Owner Service Manual Table of Contents REPE 2 Technical Information and Operating Limitations 2 Discus Reassembly After Shipping and Breakdown for Shipping Procedures 3 Reassembling The Discus After Breakdown For Shipping 3 To Remove The Rear Leading Edges For Shipping 4 DISCUS Sel TOCBOUFe ha aes 4 PIOCSGQUIG uuu uuu au TEE 8 Laying The Glider DOWD Tato 9 Launching and Flying the DISCUS 9 10 ZS IO eT 10 Your Glid er ameter adios 10 USING THE VG SV SIOM do 11 tanding A u uuu 11 DISCUS BIC AKO OW tr 12 ideas oeste its
8. 000 Fel ILS IHNNVHO 1 38n L 149 387 000 r 250 14 44 5 3911 QNVM 61 geisnosia 3874 31 61502510 100 961 OSA UA 10441 9401 11 puey Yo UMOUS eqnj 31 puey juDu 0LX8 L3AIl GNI 18 8 LAAN GNI 18 62 000 Fel ILS IHNNVHO SOddS 8 ON 3an L 346 3an L 000 PEL VFLOSQO LYOddNS 3914 GNVM gsisnosia versnosia Tr sSn3SIq MOILS LNOHSVM 50240 7 502510 981512810 dv 00008L 280 VELSNISIC 5 5 722502510 000 691 115 108 000 trl L 21839 5 00 1 ONI TS 1 0 OPXS 6 61 00 13 0LLXS 6 6 L 00 LJ U JHM DOSHdS 01985 AL343VS 000 PRL 199 S 9 SIA31O 63 0319 5557 38711 122 aeos 950991 91802810 YELSNISIA 21872510 000 06 258 SOO LOL ILS dvO 90006 5 Sant 5 3811 1333 00026 715 8811 1333 64 ees 89502514 971812514 18 55 1334 ELSNISIG gzrsnosiq 000 06 254 4 5 x N L 3874 1335 SOO LOL
9. 9IN 9vV08t H3HSVM 08 0 LSO 96 9 1108 000 156 ILS 000 LSC 6 199 91 9 H3HSVM 46 8 1502510 vrL Snosig 861502510 70000079250 VELSNOSIC 821502510 721502510 96151951 ve snosia 171812514 3NOZ QV 000 022 VrLOSQG dVd1S OM 00 9066 2190 5 000 Ste VFLOSO 301 LSOdSNI3 000 EL CLA S Ect SIA3 19 10 YES ALSAVS 47 gSLSNISIA 75502510 102502510 INOZ 89150810 2502510 91812510 av 000 358 e e2g 61509510 9215 2514 702502510 000 206 115 3 99 38 ALIGNOAS v9 Nid MOINO 1 089 YL 19 211SV 1d H3NHOO 089 HL 5 4 OILSW1d H3NHOO 000 70 1LS LNN 000902 115 57 9 1108 000 606 115 SIN 000 60c 115 SIN 000 802 115 A3 000 LLC ILS Wel 901 3GISNI 000 802 TLS Qu6u 901 3alsNI 600 891 115 05 9 SIA319 LLOLYdS 134 5 48 YZLSN SIA 000 VILL V LOSQ 69 9 1109 9I N 9v08 H3HSVM 9IN OLECL LAN 000 SLL 1058 81020 145 3 1045 000 6LL ILS 31V ld 21020 ILS 1 5 000 18 VrlLOSd 5 02X2 0L 6 1145 8101 0901 GALLOIS 9 9 08 H3HSVM 00088118 0 8 2 1709
10. ILS dvO 50006 VrFLOSQ Sant 000 561 05 ONISdS 49 3874 1335 00026L 715 3911 1333 65 gsrsnosid 5 5 amp 5 5 5 000 08027250 WVsd x 3904 38 000 9LL ILS 66 01 3 350 000 0 4 013 220 000 0 Ss Kl 02 X Z AEROS ger CONTROL FRAME WITH CABLES SET 77 7 0 20 7 000 29 201 TANC 12 0 1 0 2 5 000 18 Blind Rivet d4x10 20 M8 05 133059 80 27 20 1270 14 5 1 154 000 10 7 0 202 000 16 S TL 206 000 19 Nut M6 self locking DIN 985 26 206 14 79 21 Safet y Ring 5881011 15 5 TL 166 007 PDPFDF20002D 2 0 206 000 AD 21 Safety Ring SBR1011 5 5 1 168 007 28 64 23 M ED LHP T D13 200 000 AD 00808 0 4 2 P T D 213 000 AD Z21 Safety Ring SBR1011 15 5 TL 166 007 28 64 23 d AEROS L idi 1 OPT D 21 5 005WD Q D 3 200 1489 15 12 2 CBT213206005WD Parts List MATERIAL VENDOR NOTE 9 OPT D 202 000 1 1 OPT D 213 003WD 12X18H10T BUSH 6x0 8 L 19 7 2 1 CBT213206005WD 12X18H10T BUSH 28 0 8 1 21 6 1 20
11. Remove the battens from the batten bag and check each batten for symmetry against the corresponding batten from the other wing Align the battens at the nose and at about the 60 chord point as shown Photo 7 There should not be any deviation of more than 3 mm 1 8 from one batten to the other along the full length of the battens Aeros convention is that red marked battens go in the left wing and green marked battens in the right But you can feel free to install them the other way around i e red marked battens go to the right and green 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 Battens are numbered from the center outwards and the longest batten in a Discus is designated as the No 1 batten Install the cambered top surface battens in the sail leaving out the shortest four on each side for now Install the batten tips into the hem of the trailing edge Photo 8 At each batten make sure the opening in the underside of the trailing edge hem is spread to accept the tab on the batten tip Make sure the tab slides fully into the hem Photo 8 Insert the battens carefully so as to minimize stress and wear on the sail Never insert or remove top surface battens with the crossbar tensioned except for up to the last four on each side and never insert or remove batt
12. edge Align the rear leading edge properly so that the sprog bracket is on the inside of the leading edge and slide the rear leading edge forward rotating as necessary until the button spring in the rear leading edge engages securely into the holes in the front leading edge When the rear leading edge is fully engaged you will not be able to rotate it Photo 2 4 Reach into the sail from the sail mount strap zipper find the sail mount strap and stretch it towards the aft end of the leading edge Position the sail mount strap on the bottom of the leading edge tube and make sure the strap is not wrapped around the tube Remove the safety ring from the clevis pin located 100 mm from the end of the leading edge remove the clevis pin and pass it through the grommet in the sail mount webbing Re install the clevis pin in the leading edge and re install the safety ring on the clevis pin Photo 3 5 Put the outboard end of the rear leading edge into the sail through the sail mount strap zipper Verify that the sail mount strap is on the bottom of the rear leading edge Zip up the sail mount strap zipper pet P Photo 3 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 tollow these steps This process will basica
13. send the sail in to the factory for repair remove the Mylar and the transverse battens The Mylar is removed from the front end of the Mylar pocket It helps to secure the opposite end of the sail to something solid so that you can lay the leading edge out straight and pull the Mylar straight out of the pocket 9 Fold and package the sail carefully if you plan to ship it in for repair Be sure to include written instructions of what you want done your name and a phone number RE INSTALLING THE SAIL ON THE FRAME 1 Install the Mylar in the sail Make sure you install it right side up the slit edge is at the front and on the bottom The easiest way to install the Mylar is to push it into the pocket using a long lofting batten attached to the end of the Mylar insert which is first inserted in the pocket You will have to stop from time to time to make sure the Mylar is properly lying flat in the pocket Do not push the Mylar too far into the pocket Make sure there are no folds in the Mylar especially at the tips Make sure the Mylar wraps in the proper direction to follow the sail around the leading edge as it enters the pocket 2 Install the transverse battens in the sail 3 Position the sail on the floor with the keel pocket up and the wings folded over so that the leading edges lie along the length of the root line with the Mylar pockets lying on top 4 The frame is most easily inserted without the rear leading edges installed 5 P
14. 00 891 715 17 9 SIA312 000 VCLOSG I3NNVHO 101 5 ALSAVS e 000 S Z VFLOSQ 9 9 1108 4 9 9 08 H3HSVM QIN O90LL LAN LLOLYGS ALSAVS 08 09LLEL LSO 89 9 1108 9PO8E H3JHSVM 9IN OLEZL LAN 08 0911511 0 89 9 1108 9 9 8 9IN 0LECL LAN 44 96151251 704500900 A INOZ A MGS ON ALIAS 0 uu 600 89L 715 05 9 SI 3T1O jv 92 OILSV Id 401 415 1 9NVH 000 ZLZ 11S 1 09 9NLLLIJd dOL STI 000476 ILS 98 8 LLOL dS 1344 5 SI OLeE cl LNN 900 891 ILS gt SI 31O 01985 ONIY ALSAAVS 8 97086 H3HSVM 000560 5 95 9 1108 000 5 IHNVHO 2 9 086 YIHSYM QN 09011 LNN LLOLHBS ONIN A134VS 000 302 115 08 0911 21150 86 9 17108 0460 ONILLIS 1 H3HSVM QIN OLEZL LNN 118281 01502510 YriSnosid qY 00000 OSC L 4A 45 89 513510 YSLSNISIA 7 502514 ANOZ Qv 000070 254 d griISnosia 85 862502510 61509510 215 5 722502510 Qv 000 LEC 115 500 VvLOSCG 09 9 1108 S00 9 c VrLOSQ 7 9 1108 9 9 8 YSHSVM 9IN 9v08 H3HSVM 9IN OLECL LAN 9IN 0OLE CL LAN SIN 8 L 00 89I VFLOSd 7 04 9 51419 5895 131 5 qv 000 290 15 dVHlS QIN OLE L LAN
15. 00 92 5 SNIddV L HV8SSOHO 000 81 ILS H3HSVM 000 2926 Vr LOSC 31V ld 000 992 Vr LOSCG 95 8 2 1108 9 08 H3HSVM O0cXc 0L 6 111445 8101 09081 LAN Q3LLOTS 000 L8L TLS H3HSVM 000 192 VFLOSQ 31V ld 210 cci 115 410095 42 grLSnosia d VFLShOSIG 000 0 0 254 1 Ll QW OLECL LAN Qv 000990 250 dVd31S ALAAVS 9708 H3JHSVM O8 SSLLEL LSO 08 9 1108 7 QV 000 9c Vr LOSQO 5 9IN 0LECL LAN 9W 9F08 H3HSVM 08 SSLLEL LSO 729 1108 000 09c Vr LOSQ 5 L0 eccL ILS dIaQavs 000 292 YY LOSA 31V ld gt 61 8 7 00292 M3HOS ONIddVL 000 922 115 HdOVdS 000092 VFLOSQ HSn8 v 000 VrLOSO d33AS 550 40 0 000 81 115 H3HSVM 000 2926 31V ld 000992 1258 92 8 2 1108 8 H3HSVM 02 2 01666 11146 801 0901 LAN 0311015 000 L8L 1LS H3HSVM 000 L9Z VFLOSG 31 1 210 cci 115 410095 43 gELSN SIA versnosia A3NOZ Iersnosia veLSnosig x 000 090 254 LLOL 4 5 SNIH 131 5 600 891 115 05 9 SIA319 AV 92 dvO OLLSV 1d 00021241165 dOL 415 LNIOd ONVH 000 9 115 98 8 2 LLOL 445 131 5 8I N OLECL LAN 97086 H3HSVM 000 502 115 dOL
16. 109 GLO ILS 31807 5 000 8 VrLOSQ 5 02 2 01666 11145 8 090 0311015 9 08 H3HSVM 000881 ILS 05 8 2 LLOL 445 134 5 51 gsLSnosig XI3NOZ 5 5 GVv 000 258 SOKE 9IN 0LEZL LAN _ 9 9 08 H3HSVM 000 t LL VPLOSQ 82 9 1108 000 PLL VrLOSGQ 829 1109 9 97085 HJHSVM 9IN 0L CL LAN 000 SLL VEFLOSO HSf18 LO 715 diaavs 000 11S 5 000 6LL 115 31V ld LLOL 445 134 5 9IN 090LL LAN 9NW 9r08 H3HSVM 000 492 8tLOSG 97 9 2 1108 LO ILS 310075 000 L9L VrLOSGO 411095 OZXZ OLE6E 1145 810 0901 LAN 3110158 SIN 9P08E H3HSVM 000 281 115 05 8 1108 52 je X INOZ gsisnosig VSLSNOSIC 1 5 9510 j 000 254 L griISnosia 85 862502510 61509510 822502510 702502510 9 086 H3HSVM 00 68 ILS 62 9 SI 3 19 LLO0LeH8S 1 4 5 9IN 9708 6191 4945 144 5 000 StL VrLOSG 09 9 SI 3 12 H3HSVM 53 84509510 76502510 71015802510 S3NOZ Qv 000 020 254 15 2514 5 86502510 61509510 9215 2514 722502510 SW OLECL LON 08 49181 LSO cc 91108 6151995 AL33VS Qv 000 06 VPLOSQ 9 000 OLE Y
17. 8 3NOZ EN m vay gt _ 9IN 0LEZL LAN 9 1 99086 000 17 2125 69 9 1108 gt 1655 9 0221118 3100 8 _ 27 VOS MUNI Vc LOSQ 49 O8 OCLLEL LSO 99 9 1108 VELOSQ 10 08 0cLL L LSO 929 1108 9IN 9v08 H3JHSVM 9IN 0LECL LAN 49 812810 XI3NOZ 18802510 71802510 L 4A 9708 H3HSVM li 9IW 0L ZL LAN 000 tLL VPLOSG 8 9 1108 000 VIL VFLOSO 81 9 11084 9IN 9v08 H3HSVM 9IN OLECL LAN 000 SLL VrLO9SGQ 5 10 221115 8 0001217115 78075 Sv 9IN 9v08 t H3HSVA 000 6LL 1LS 31V 1d CZ 9 050 7112250 404 O8 OZLLEL LSO 97 9 17108 VFLO SG 40 O8 OZLLEL LSO 22 9 1108 51020 115 188 75 000 18L VrLOSG 5 OcXc 0L 6 11145 8IN 090c LAON 311015 8IN 9r08 d3HSVA 000881 ILS 02 80 L109 9 9 08 H3JHSVM 9IN 0LECL LAN 50 GELSNISIAG x XI 3NOZ 8 9IN 0LEZL LAN 9IN 9v08 H3HSVM 000 LL VFLOSG 69 9 1108 5 000 0 0 254 000 VCLOSO 69 9 1108 97086 H3HSVM 9IN 0L Z I LAN 000 SLL VCLOSQG HSf18 25 910221116 3 1845 81020 ILS 5 000 6LL ILS 31 g LOS 40 000 2492 87058 92 91109 9210280 04 000492 82LOSQG 99 9 2 1
18. 8 000 vct 18D N3 LIV8 000 928 115 Z0X0L dil N3 LIVS 34 JNVeldelv VSLSNISIC 7 509510 3MIM 3015 WOLLOS LHOIdN puno S3MHIM 108 VENOUS dy SL Yel z Lit 31 31 4 Z L 3811 37 WNv38 SSONO 39101 38 550450 NE Su 4 k XU S3MI A INOLLOS OOHdS 1337 EN s u LNOdSs 1504 149 31 vriSnosid versnosia zisnosia qY 00000 OSC 35 gSLSNOSIG HPLSDOSI M GELSNOSI 822502510 Qv 0000028 GON 3015 WOLLOG 08 SSYIM 1 4 INOLLOS 3871 31 1 3871 3 2 SGNL 37 38 55040 3MIM 3415 1480 2 31 39101 INV38 SSOMWHO J8nl1334 5 yni CM UNOHdHAddn IN 21504 ONIX N 3811 31 36 _ VELSN SIA VZLSNOSIG QW OLEZL LAN 9W 9r08 H3HSVM 9IN 0LEZ 000 822 68 9 1108 92086 H3HSV A 108 0211 180 97 9 1108 000 29 ILS 5 000178 115 900 26 ILS dIQQvs 000 ILS 31V I
19. Same as for the left tip Along the right leading edge Same as for the left leading edge Under the glider at the control bar Sight down the downtubes making sure that they are straight Do not fly with bent downtubes 10 Check the cables the control bar corners making sure there are kinks twisted thimbles Check for proper installation of all nuts and safety rings at the control bar corners rt 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 straight Photo 21 Check the VG operation the pull should be light initially becoming harder as the VG tight limit is reached The return on release should be smooth With the VG set tight the sprog paddle slides forward on the transverse batten Make sure that at VG full tight the rear end of the paddle does not slide past the rear edge of the transverse batten or the system could malfunction Photo 21 Check the crossbar center plate s assembly including the sweep wire X bar junction and the center bolt Also visually inspect the crossbars by sighting along the length of the crossbars looking for any evidence of damage Check the control bar apex bracket hardware including the clevis pin safeties the control bar top plug bolt and nut and the kingpost bracket bolt and nut Check the main and backup hangloops bolt and nut that t
20. ad screwdrivers attach the upper control bar fittings to the keel with a bolt and a safety nut Secure the assembly with a safety ring 5 Spread out the control bar legs the quick pin from the corner bracket Insert the corner bracket all the way into the basebar positioning the basebar so that the off set of the basebar is directed forward in the direction of flight it has to be directed down in our case Install the quick pin bolt from front to rear securing the bracket to the basebar Pass the VG rope through the clam cleat 6 At this stage the Discus reassembly from two meters long package is finished and the frame is ready for installing the sail Photo 38 Photo 38 To put the sail on the frame refer to the section Reinstalling the sail on the frame above 23 DISCUS BREAKDOWN FOR SHIPPING TWO METERS LONG PACKAGE Discus 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 steps 1 Lay the frame on a floor or on a clean working surface as shown on the picture Photo 39 Photo 39 Photo 40 Photo 41 2 Detach the basebar and fold up the control bar legs Dismo
21. ag on the glider DISCUS SET UP PROCEDURE 1 Lay the glider on the ground with the bag zipper up with the bag at right angles to the wind 2 Undo the zipper remove the battens and remove the control bar bag 3 Lift and deploy the control bar legs Remove the quick pin from the corner bracket Insert the corner bracket all the way into the basebar positioning the basebar so that the off set of the basebar is directed forward in the direction of flight Photo 5 Install the quick pin bolt from front to rear securing the bracket to the basebar Pass the VG rope through the clam cleat Do not force the fitting into the basebar if it does not slide in freely Check for dirt or damage to the fitting or the inside of the basebar Photo 5 4 Flip the glider upright on the control bar Try to set the basebar on level ground Remove the glider bag and the velcro sail ties Do not remove the leading edge tip protection bags at this time 5 Spread the wings almost all the way The kingpost will automatically stand upright If not lift gently on the top side wire as you spread the second wing do not pull the wire to the side and the kingpost will stand up 6 Remove the bridle ring from the neoprene cover at the bottom end of the kingpost and attach it to the snap hook taking care that there is no twist or rotation in the bridle ring which causes the bridle lines to cross over one another Photo 6 Photo 6 Photo 7 7
22. aking care to maintain the rotational alignment of the sprog at its original setting 3 At the front of the sprog there is a threaded adjuster To raise the sprog turn the entire sprog counter clockwise To lower the sprog turn it clockwise One full turn raises or lowers the sprogs end about 12 mm 1 2 4 Re attach the sprog cable and press down firmly on the rear end of the sprog to seat the cable before checking the measurement again Photo 32 TEST FLIGHT If the sprogs are set too low it may cause a significant increase in trim speed and a reduction in pitch pressures at tighter VG settings and there will be a reduction in pitch stability at angles of attack below normal flight angles This stability reduction could increase the probability of a turbulence induced tumble or other in flight stability related loss of control If the sprogs are set too high it may cause excessive pitch bar pressure at high speeds and excessive roll control pressures lag in roll response Please be aware that flight testing encompasses a very limited angle of attack range and that there is no correlation between pitch stability in the flight test envelope and pitch stability in the extended angle of attack range that is investigated on a test vehicle This test is best performed by a qualified test pilot and in any case should be performed only in smooth air and with caution 17 This section contains recommende
23. and do not attach the velcro ties so tight Photo 25 so as to induce creases in the Mylar or leading edge sail material 14 11 At the wingtips lay the sail at the out flat and fold the wingtip forward over onto the bottom surface of the sail Photo 26 Photo 26 Photo 27 Working from the trailing edge roll the sail tightly to the leading edge Photo 27 and install the tip cover bag Note f you re breaking down in a dirty rocky and or abrasive area you can combine this step with step 7 above by pivoting the wing inwards enough to allow you to flip the sail at the tip over the top of the leading edge fold forward and roll up the wing tip and put it in the tip cover bag 12 Finish rolling the sail in the area of the sprogs Secure the sail with the velcro sail ties The first velcro tie is installed by passing it over the top of the keel tube just near the Crossbar LE tube junctions and then installing it around the glider leading edges Photo 28 Photo 28 Photo 29 13 Install the sail velcro around the sail forward of the control bar apex and stow the nosecone between the leading edges Photo 29 30 Photo 30 15 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 Fold up the control bar and install the control ba
24. around the kingpost channel are right and clear 11 Working through the crossbar junction zippers insert the bottom and upper side wires into the sail and attach to the crossbar making sure that no cable is wrapped around a leading edge or crossbar and that no thimbles are cocked or twisted 12 Insert the upper front wire into the sail and attach to the nose plate Don t forget to thread this wire through the nosecone hole 13 Attach the bottom and upper rear wires to the rear of the keel 14 Set the glider up onto the control bar 15 Spread the wings slowly and carefully making sure that the sail rides forward as necessary at the nose without catching Be careful you can easily tear the sail open at the nose at this point 16 Bolt the hangloop tangs to the kingpost 17 Finish the assembly of the glider completely according to normal assembly procedures 18 Do a very careful and complete preflight of the glider according to the normal preflight procedure as explained earlier in this manual 21 DISCUS REASSEMBLY AFTER SHIPPING TWO METERS LONG PACKAGE Discus 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 Sort all tubes out and do careful check ensuring that neither tubes nor cables have been damaged during transportation Photo 34 Phot
25. be a reference line across both the very end of the leading edge and the edge of the plastic cap This will mark your starting point Remove the securing screw and rotate the cap to see where in the five hole range of adjustment the cap has been initially set Photo 52 SAIL TENSION Check for symmetrical sail tension on the leading edges In order to check this sight the hem of the sail at the bottom of the leading edge tube relative to the nose plate on each side Leading edge sail tension is adjusted by changing the tip wand cam lever position from one hole to another see schemes DSC 040 000 AD ZONEXI This method is used to correct the significant turn of the glider TWISTING A TIP After you have made everything symmetrical if you still have a turn you can correct it by rotating one or both tip wand receptacle end caps A left turn is corrected by twisting the left sail plug counter clockwise twisting the sail down at the trailing edge or twisting the right sail plug counter clockwise twisting the sail up at the trailing edge or both Twist clockwise on either or both plugs to correct a right turn The method of twisting a tip wand is used to correct the minor turn or as an additional method when after changing the tip wand cam lever position the glider still has a turn BATTEN TENSION The two outboard most battens are tensioned by looping the batten string over the notched end of the batten twice The remaining battens are a
26. c 115 78 9 11098 v 000 Z c 115 MOOH 000 ILS 31V ld 000 129 115 H3OVdS 000 8 Z 115 2 46 S00 eccL 115 dIlaqavs 40 921580280 5 QY 000000 080 9IN O0L CL LON 000 9 50 15 ALd4vS 9IN 9v08 H3JHSVM 08 556 LSO 97 9 1108 000 296 VtL SG 13 E 1 91 01821 LON 9IN 9v08 H3HSVM 000 VCLOSG 69 9 1108 000 09 VcLOSQO 508 8102 ILS 5 000 292 31V ld EN EN 6LX8 7 00292 SNIddV L 000 S Z 11S H3OVdS SY 000 VcLOSQ d33MS aVesSsodo SS 000092 VZLOSd 000 81 ILS H3HSVM 000 9 VVLOSO 31V ld 000 992 Vr LOSO 96 8 2 1108 8 9 H3HSVM 01 868 11145 8101 0901 LAN 110158 000 18 ILS H3HSVM 000 96 Vr LOSCO 31V ld SLO ILS d3IQQVvs 41 85 5025 0 92860280 02 19151510 GELSNISIC 785092510 x 000 0r0 254 9W Oltck Qv 000990 250 515 ALAAVS 9IN 9v08 d3HSVA O8 SSLLEL LSO 98 9 QV 000 9c Vr LOSQO 5 9IN 0LECL LAN 9W 9F08 H3HSVM O8 SSLLEL LSO 629 L1O8 000 092 171250 10 20 ILS 3IGQVS 000 Z9Z VrLOSd 31V1d ARN Li 000 562 115 H3OVdS gt 6LX8
27. d 000 LZ8 11S 2 46 37 9500 261 115 3 1005 20020 115 1 5 08 02 12 LSO 89 9 1108 OIN 9P08E H3HSVM 9IN 0L Z LAN 000 LEZ TLS 31V 1d 5 22 4 3NOZ _ ___ L 91510510 vrisnosia QW OLECL LAN 9IN 9v08 H3JHSVM 9IN O0LECL LPYN 600 922 1LS 86 9 1108 9IN 9v08 HJHSVM 400 922 115 78 9 1108 000 LCS ILS HdOVdS Qv 000 28 1LS MOOH 000 582115 H3OVdS 500 26 ILS 5 000 222 ILS 31V 1d 000 29 ILS H3OVdS 000 S ILS H3OVdS 80022 115 100 5 900 26 115 34100 5 08 0ZLLEL LSO 97 9 17108 9IN 9v08 H3JHSVM SIN OLECL LAN 000 Led ILS 31V ld 38 _ gELSN SIA 21502510 0000 0705 LLOL 85 ENIM 6 9IN 090LL LAN 9IN 0L Z L LON 000 992 8 10Sa 6 9 1108 9I 9v08 H3HSVM O8 OZLLEL LSO 9 9 L108 000 109115 H3OVdS _ Qv 000 762 115 MOOH 900 26 ILS JdIaavs AN 000 Z Z 115 31V1d 500 cl 115 31Gqvs 08 02 2 LSO 89 9 1108 H3HSVM QIN OLEZL LAN 000 LEZ TLS SLV 1d 2 39 8SLSn2SIG S8FLSnOSIG LLOL 485 ONIN AL3AVS 9IN 090LL LNN 000 992 8t LOSA 001 9 2 17108 000 129 ILS 5 000 S c ILS H3OVdS 20022 115 9 1085 S00 cl 115 IQQ vs 08 0ZLLEL LSO 94 9 9IN 9v08 H3JHSVM 9IN 0LECL LAN 000 LEZ TLS 31V 1d SW OLECL LNN 9IA 9v08 H3HSVM 400 9
28. d limits AEROTOWING Special care must be taken in any form of towing We recommend that the VG be set to off prior to launch This provides the best qualitative flight characteristics for flying in formation with the tug at normal aerotow speeds If you choose to launch with some VG on fix the excess VG rope on the control frame so it will not interfere with the construction of the cart during take off Make sure that all the harness ropes are hidden inside the harness and Will not get tangled on the cart during take off If possible it is best to adjust the keel cradle on the cart to re set the glider to the proper angle of attack For Discus the best angle of the keel tube in relation to horizon is approx 18 20 deg If it is not possible to re adjust the cart recognize the launch will be more demanding and more dangerous as the glider will have an increased tendency to leave the cart at a lower speed where lateral control is reduced and the tendency to come off the cart with one wing low is increased To some degree this can be compensated for by pulling forward through the control bar to position the basebar below your shoulders and holding tight to the hold down rope This will cause the glider to raise the keel as it begins to develop enough lift to lift out of the cart At that point and not before that point you can release the rope and ease your weight aft to fly the glider off of the cart Be prepared to pull in once clear of t
29. d schedule of periodic maintenance None of the items this section substitute for the continual and consistent practice of proper pre flight inspections and immediate maintenance of any items on the glider which require it Safety requires that your glider be fully airworthy for every flight Nuts and bolts must always be secure safeties must always be in place and damage to any part which could compromise the airworthiness of the glider cannot be tolerated 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 On the other hand a wire that has been kinked one time can fail very quickly after that and should be replaced immediately We recommend that you have all maintenance work done by your Aeros dealer EVERY SIX MONTHS 1 Check the adjustment of your outboard sprogs as described in the last section 2 Check your battens on a flat level floor against the batten diagram provided and correct any that deviate from the pattern by more than 6 mm 1 4 3 If you fly in a dusty or sandy environment it will help to prolong the life of your batten pockets if you wipe each batten with a rag before you install it in the sail 4 Have a complete inspection performed on th
30. e glider and replace any suspension system component that shows any wear and any cable that shows any kinks wear damage corrosion etc 5 Inspect all bolts for tightness all safeties for proper installation and possible damage Inspect plates and fittings for damage holes in tubes for elongation 6 Inspect the sail for wear tears UV damage loose stitching etc 7 Disassemble basebar pulley assembly clean lubricate with white grease and re assemble 8 Lightly spray all zippers on the glider with silicone spray lubricant Also spray your battens before you install them in the glider to lubricate the insides of the batten pockets Do not use any other type of lubricant Wipe off any excess silicone so that it does not attract dirt 9 the sprogs sprog hardware and sprog cables the sprogs have been loaded heavily it is possible that the sprog tubes may have been bent and the cables may have been stretched EVERY YEAR In addition to the normal six month service items also perform the following 1 Have the sail completely removed from the frame and disassemble all frame components Inspect every part of the glider for any damage or wear Inspect the tubes for straightness and for signs of corrosion Note that the rear leading edge is secured in the front leading edge by two eccentric reducers As a result the rear leading edge is at an angle to the front leading edge and the leading edge as an assembly will a
31. e to avoid ice covering the glider particularly the leading edge in wintertime 5 If you fly regularly at the coast in windy conditions be aware that the sea mist spray can have the same effect Hose down your glider after such flights and keep a special lookout for corrosion 6 Cleaning Your Sail Keeping your sail clean will extend the life of the cloth When cleaning the entire sail you should generally use only water and a soft brush You may clean small spots or stains with any commercial spot remover that is labeled for use on polyester A NOTE ABOUT CABLES AND CABLE MAINTENANCE The cables which support the glider s airframe are critical components of the glider s structure and must be maintained in an air worthy condition It is a general practice in the design of aircraft structures to design to an ultimate strength of 1 5 times the highest expected load in normal service Hang glider cables like other structural components on the glider are typically designed with a structural safety factor of only about 5096 above the expected maximum load No significant loss in cable strength can be tolerated A cable with even a single broken strand must be replaced before the glider is flown again A cable which has been bent sharply enough to have taken a permanent set must also be replaced immediately Some degree of fatigue due to repeated bending of cables is almost unavoidable in an aircraft that is assembled and disassembled with ev
32. eed 60 degrees Discus12 050513 Discusi4 Discusi5 Noseangle 125 128 125 128 125 128 125 128 Weight without bags kg Ib Number of upper sail battens 1 8 20 2 Number of bottom sail battens 4 4 4 4 s Discus B model allows breakdown into a 2 m package Aeros recommends that no attempt should ever be made to deliberately spin the glider The stability controllability and structural strength of a properly maintained Discus have been determined to be adequate for safe operation when the glider is operated within the entire manufacturer specified limitations No warranty of adequate stability controllability or structural strength is made or implied for operation outside of these limitations Operation of the glider by unqualified pilots may be dangerous Operating the Discus outside of the above limitations may result in injury and death Flying the Discus in the presence of strong or gusty winds or turbulence may result in loss of control of the glider which may lead to injury and death Do not fly in such conditions unless you realize and wish to personally assume the associated risks 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
33. eir proper settings You can check this adjustment as follows SPROG MEASUREMENT 1 Fully set up glider on a reasonably level surface and set the VG to full tight 2 Place three equal supports about 1 7 m 5 5 ft tall under the each leading edge tube cross tube junction and in place behind the connection of rear bottom cables to a keel tube 3 Tie a lightweight string tightly across the wing from the inner of the two supported battens on each sprog to the corresponding batten on the other wing 4 Press firmly on the end of each sprog supported batten and then release Set the VG to full off and than to full tight again Measure the height of each thread relative to the top of the keel tube The results should be as follows Batten Batten Discus Discus Note figures are given with VG on only ax Bi Permissible range of thread heights relatively to the top level of the keel tube is 5 mm 6 6 77 65 a 1 2 5 Note that this method will disclose sprogs that are asymmetric If after achieving the proper measurement you a turn in the glider which is only present at tighter VG settings lower the sprog on the side the glider is turning towards and raise the other sprog by the same amount METHOD OF ADJUSTMENT 1 To adjust the sprog height fully unzip the access zipper to gain access to the sprog LE tube connection Photo 32 2 Remove the sprog wire tang from the pin on the LE tube t
34. ens with heavy wind pressure on the top of the sail or in any condition which causes the battens to slide with great resistance in the pockets If you choose not to check your battens for symmetry before each flight you should at a minimum check them once a month BATTEN TIPS DESIGN Photo 9 Photo 9 8 Spread the wings the way and check all cables for any twisted thimbles or tangled cables At the rear of the keel find the S shackle of the sweep crossbar tensioning wire Pull the shackle out the rear end of the keel pocket and check that sweep wire is not wrapped around the keel Attach the shackle of the sweep wire to the hook which is placed on the keel tube Photo 10 An in flight disengagement of this attachment will cause complete loss of structural support of the glider and a total loss of control Never attach the pull handle webbing of the shackle to the hook even temporarily Photo 10 9 The next step is to install the tip wands The wands are tapered the larger end is installed in the receptacle in the end of the leading edge tube Remove the wingtip protector bag Unfold the tip of the sail and open the tip wand cam lever access Velcro or zipper Rotate the cam lever outside the sail Reach into the opening with the tip wand in your hand and work your way up to the end of the leading edge Install the tip wand into the receptacle and push it all the way in until it bottoms out Photo 1 1
35. ery flight Bottom side wires are subject to the highest loads in flight and are therefore the most critical This is why we recommend that these wires be replaced annually even if there is no known damage TIP WANDS MAINTENANCE 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 always install the tip wands with the same side facing forward for each flight If the tip wands are not marked mark them near the end with indelible marker This will tell you which side is the back side of the wand and which side is the front side inspect the tip wands regularly and replace when replacement is indicated 19 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 Make sure the surface is clean If it is abrasive you should either put down a protective tarp or be extremely careful
36. full loose VG setting will reduce glide performance making it easier to land on a target or within a small field It will also ensure maximum control authority during the approach and especially when flying very slowly on final At VG full loose however there is some loss of aerodynamic efficiency and flare authority For this reason in very light winds at higher wing loadings or at higher density altitudes it is recommended that a setting of VG 1 4 be used A full loose VG setting will also increase the glider s roll sensitivity and some pilots have had difficulty with roll yaw oscillations on final The best way to avoid this is to fly your entire approach at a constant airspeed and to control your touchdown point by making adjustments to the shape of your pattern You should choose your approach speed based on the amount of wind and turbulence present in stronger wind and more turbulent air fly faster In any case however try to fly a constant airspeed throughout the approach Once established on a straight final approach with wings level and flying directly into the wind you should fly the glider down to where the basebar is about 1 m 3 ft off the ground At this altitude let the control bar out just enough to round out so that your descent is arrested and your flight path parallels the ground The remainder of your approach will consist of bleeding off excess speed while paralleling the ground and keeping the wings level and the nose
37. glider retains good lateral control authority and response Tighter than VG one half the glider s roll pressures increase significantly and the roll rate becomes significantly slower Tighter VG settings are recommended for straight line gliding or for flying in smoother conditions when well clear of both the terrain and of other gliders The stall characteristics of the Discus at tighter VG settings are more abrupt and less forgiving and the glider is more susceptible to spinning Full breaking stalls and accelerated stalls at tighter VG settings are not recommended LANDING THE DISCUS Under ideal conditions landing approaches are best done so as to include a long straight final into the wind at a speed above best L D speed In a very limited field or a field which slopes slightly downhill when landing in light wind you may need to make your final approach at a slower speed perhaps as slow as minimum sink in order to be able to land within the field In winds of less than 5 km h 3 mph if the landing area slopes downhill at more than 10 1 you should seriously consider landing downwind and uphill or crosswind across the slope Landing attempts which require slow speed approaches maneuvering around obstacles or into a restricted area or downwind or crosswind landings are not recommended for pilots below an advanced skill level Photo 21 We recommend that you make your approach with the VG set between full loose and 1 3 on A
38. he cart if necessary so as not to climb more quickly than the tug Once clear of the cart and in the position behind the tug use firm lateral movements of short duration for roll and directional control in order to stay in the position behind the tug Do not move to one side of the bar and wait for the glider to respond this will lead to over control and being out of position and may lead to roll yaw oscillations It is better to bump the glider firmly in the direction of the desired correction and then return to center If you need more correction bump again In pitch stay on top of the situation and be as aggressive as necessary to keep the tug on the horizon Get appropriate training for aerotowing TRIMMING YOUR GLIDER IN PITCH You will find that the pitch trim of the Discus as well as the basebar position at trim changes with VG setting At VG loose the Discus will normally be trimmed closer to stall than with the VG tight The bar position at trim at VG loose will be relatively far out As you set the VG tighter the trim speed will normally increase and the trim bar position will move back At tighter VG settings the amount of pitch pressure felt as you move away from trim also decreases At VG loose the pitch is very well defined and the pitch force increases quickly as you pull in from trim speed At tighter VG settings the pitch well becomes more shallow and the pitch force increases much less as you pull in from trim s
39. heck that the sail is not caught on the crossbar end or on any of the hardware Remember to close the access zipper At the left wingtip Check that the tip wand lever access velcro is closed Along the trailing edge left wing Check that there are no tears in the sail material along the trailing edge Check that all battens are properly secured Check that the outboard sprog is properly secured in position _ supporting the transverse battens and that the sprog access zipper is properly closed With the VG set tight the sprog paddle slides forward on the transverse batten Make sure that at VG full tight the mE rear end of the paddle does not slide past the rear edge of the transverse batten or the system could malfunction Check that the bridles are properly engaged Photo 19 Photo 19 From the rear keel Check that the sweep wires are tight and secured on the hook on the keel tube Check the proper alignment of the VG ropes they must not be twisted Check the nut of the kingpost base bracket which secures the channel to the keel Check the safety ring and the clevis pin which secures the kingpost to the channel Check the safety ring nut and bolt which secures the hang loop to the kingpost Photo 20 Check the kingpost top for proper attachment of the bridles and condition of the top rear wire and bridle wires Photo 20 Along the trailing edge right wing Same as for the left wing At the right tip
40. hey are properly installed in the proper position and that they are in good condition Photo 21 LAYING THE GLIDER DOWN FLAT Once you have the glider set up it can be laid down flat on the ground 1 Remove the nose cone from the nose 2 Release the bottom front wires from the nose hook 3 Laythe glider down with nose into the wind 4 Take a keel tube with a hand near the trailing edge and put the keel tube approx 0 5 m up Release the sweep wire from the hook on the keel tube to loose a tension of bottom side wires Reverse the procedure to set the glider upright again LAUNCHING AND FLYING THE DISCUS Before launching hook in to the glider and do a careful hang check We recommend that you hang as close to the basebar as possible this will give you lighter control pressures and better control in both roll and pitch 1 If the wind is more than 25 km h 15 mph or gusty you should have an assistant on your nose wires on launch and if necessary an assistant on one or both side wires Make sure all signals are clearly understood Do a hang check immediately prior to launch The angle at which you hold the glider should depend on the wind speed and slope of the terrain at launch you want to achieve a slight positive angle of attack at the start of your run 2 Run aggressively on launch and ease the bar out for lift off 3 The flying characteristics of the Discus are typical of a medium performance flex wing Make your first fl
41. ights from a familiar site in mellow conditions to give you time to become accustomed to the glider 4 We recommend that you take off with VG off 1 5 Do not take off if the sail is wet especially the leading edge as the stall speed will increase significantly Always fly with a dry sail 6 For the same reason take special care to avoid ice covering the glider particularly the leading edge in wintertime 11 Warning It is important that you do not take off with VG on more then 72 length of VG rope The glider with VG more than becomes easier to stall and the roll response gets longer With low speed during take off it can lead to unintended stall SPEED TO FLY The range of trim speed for the Discus with VG off is 33 35 km h 21 22 mph The speedbar position in front of the pilots face corresponds to this range The range of the stall speed for the Discus is 29 30 km h 18 19 mph The glider is stable at the beginning of stall While pushing out the basebar the bar pressure is progressive The Discus speeds up to 80 km h 50 mph being essentially roll neutral with no tendency to yaw The bar pressure is mild but progressive and consistent With the VG on the trim speed range for the Discus is 33 37 km h 21 23 mph The basebar position opposite the pilot s neck corresponds to this range The pitch bar pressure decreases with the VG on The handling of the Discus with VG on becomes stiffer but within permitte
42. ll fitted with spring tips The outboard batten with strings should be adjusted quite tight for maximum sail cleanliness The spring batten tips will automatically set their own proper tension if they are the correct overall length With the lever type batten tips you have to adjust the sail tension according to the air humidity 28 CLOSING FEW FINAL WORDS YOUR 5 gliding is active air sport with associated risks Your safety be greatly enhanced by following few simple rules Your glider is delivered to you ready to fly Do not make any adjustments which are not described in this manual f you doubt about any aspect of your glider you should consult your dealer or Aeros for advice Only fly after having attended a good school recognized by your hang gliding federation Fly glider suited to your level of ability new risk may arise when you first fly a new type of the glider The reactions of your new glider may well differ from those of the glider you where used to In order to keep this risk low we recommend that you gradually become familiar with your new glider Before every take off always do both an assembly check and a pre flight check Do not take off if the sail is wet especially the leading edge as the stall speed will increase significantly Always fly with a dry sail A wet glider must be dried before storing Do not leave your glider wet f
43. lly be the reverse of installing the rear leading edges after shipping Before beginning read through the section above on how to re install the rear leading edges While following the instructions below refer to the photos in the section above for reference if necessary 1 Lay the glider on the ground or floor unzip the bag and remove the velcro ties Remove the tip bags and lay the tips out flat The sprog access zippers should be fully unzipped 2 Unzip the sail mount strap zipper reach into the sail to expose the clevis pin which secures the sail mount strap to the leading edge Remove the safety ring and washer from the sail mount clevis pin and remove the pin from the leading edge and from the grommet on the sail mount strap Re install the clevis pin in the leading edge tube and re install the safety ring and washer 3 Check to see that the rear leading edges are marked Left and Right If they are not mark them with an indelible marker 4 With the outboard sprog folded towards the nose pull the rear leading edge straight aft while pressing the button spring in to disengage it from the front and then slide it backward carefully out of the sail through the outboard sail mount strap zipper Tape or pad the edges of the front end of the rear leading edge tubes and the rear of the front leading edge tubes to prevent sail damage during transportation 5 Carefully fold the rear of the sail over against the front and replace the b
44. not to scrape your sail 1 Lay the glider on its back unzip and remove the glider bag and put the battens aside Remove the control bar bag 2 Spread the wings slightly Dismount the sail from the rear leading edges by removing the clevis pin located 100 mm 4 forward of the rear of the leading edge tube Remove the pin from the sail anchor strap and re install it in the leading edge 3 Remove the screws that tether the nose part of the sail at the leading edge tube and keel pocket at the rear part of the keel tube Remove the rope zipper stop at the bottom nose area Completely unzip and separate the bottom surface zipper Unbolt the upper front wire from the noseplate and feed it through the hole and out of the sail 4 Remove the rear leading edges see the section on Breaking Down The Rear Leading Edges at the beginning of this manual 5 Unbolt the bottom and upper side wires from the crossbar and feed them through the holes and out of the sail Detach the bottom and upper rear flying wires from the rear keel 6 Unbolt the hang loop from the kingpost Detach the kingpost from the keel tube channel Reassemble the hardware removed onto the bolts in the original order so that it doesn t get lost All disassembled assemblies on the glider must be reassembled in the proper order and orientation 7 Slide the frame out through the open center zipper If you encounter resistance stop and find out what is hanging up 8 If you need to
45. o 34 Photo 35 Insert the rear keel middle keel tube assembly into the front keel tube rotating as necessary until the button spring in the middle keel engages securely into the holes in the front keel Photo 35 Make sure the sweep wire passes the kingpost channel from its left the routing of all VG ropes and pulleys is clear and straight and the shackle rubber cord is not twisted around the keel tube 3 Identify the middle leading edge rear crossbar tubes assembly as to left and right in order to make sure you are mounting the correct middle leading edge into correct front Identify the crossbar tubes as to left and right in order to make sure you are mounting the correct rear crossbar tube into correct front Check the right left marking the leading edge tubes and crossbar tubes they must be on top 22 Insert the middle leading edge into the front leading edge the same time insert the crossbar into the front crossbar Photo 36 Make sure the button springs in the leading edges and crossbars are fully engaged into respective holes Photo 36 Photo 37 4 Remove protection bags from top bottom of the control bar Unroll the cables set identify front and rear cables side cables left and right Examine them carefully Make sure the cables are not twisted or kinked and that they have no broken strands Photo 37 Using 8 mm socket wrench and a flat head screwdriver or two flat he
46. 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 The clevis pin also passes through a grommet on the rear sail mount webbing strap and secures this strap to the rear leading edge REASSEMBLING THE DISCUS AFTER BREAKDOWN FOR SHIPPING 1 Lay the glider down on it s back bag zipper up on a smooth clean work surface Unzip the glider bag pull it off of the glider at the front and rear flip the glider upside down to the kingpost up position remove the velcro ties and unfold the sail to it s full length 2 Identify the rear leading edges as to left and right in order to make sure you are mounting the correct rear leading edge into the correct front Check the right lef marking on the rear leading edges The photo 1 shows the right rear leading edge in a right side up orientation Photo 1 3 Working on one wing at a time and working with the appropriate rear leading edge fold the outer sprog which is attached to the rear leading edge forward against the rear leading edge Slide the outboard end of the leading edge tube into the sail through the sail mount strap zipper The photo 2 shows the right rear leading edge being inserted into the sail as described Then slide the rear leading edge forward allowing the sprog end to come outside the sail at the long access zipper and slide the rear leading edge into the front leading
47. or more than one day because corrosion may result Never fly alone Do not attempt towing of any kind unless you have attended a recognized towing school Don t push your luck It is your responsibility to know the limits of your glider and the limits of your own experience Remember that ultimately your safety is your responsibility Fly only in places which are suitable for hang gliding With proper care and maintenance your glider will retain a high level of airworthiness for many years Have fun Fly safely Aeros Team 29 SCHEMES 30 31 82 5 9514 SNALLVE 000 010 254 Ame 2 N3LIV8 401 9 N3 LIV8 401 N3LIV8 401 N XI N3LIV8 dOL SS 11 4 dOL MR 11 8 dol 11 4 1837 NdLIV8 108 N3 LIV8 INO LLOS 32 gsisnosig 15 2514 1 502514 8 502514 502501401 700001079250 8 Os GELSNISIC VELSDOSIG SUSAVUL 68 401 SS 88 dOL 18 401 9 401 401 N3LLV8 401 8 98 WOLLOd dO L L N3 LIV8 dol 8 1837 N3 LIV8 INO LLOS 33 89 513510 VSLSNISIC THLSNISIA N3LL1V8 dol 000 LLO 254 15 2514 VrILSnoSIG 862502510 VELSNISIC 5 5 5 5 926201 Q3SNIH 11
48. osition the frame with the bottom of the noseplate facing up and with the rear end of the leading edges at the nose of the sail Slide the frame into the sail through the open bottom surface zipper making sure that the leading edges of the frame pass properly into the leading edge pockets of the sail and don t get caught at the rear of the bottom surface near the root As you feed the frame slowly into the sail check periodically to see that none of the hardware is snagging on the sail or internal sail ribs 6 Install the rear leading edges see the section on re installing the rear leading edges after shipping at the beginning of this manual 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 After the frame is fully installed mount the webbing anchor strap to the rear leading edge with the clevis pin located 100 mm 4 from the end of the leading edge Make sure the strap is properly oriented on the bottom of the leading edge tube which is on top with the glider upside down and that the strap is not wrapped around the tube See the section at the beginning of the manual about re assembly after shipping 10 Flip the glider Attach the kingpost to the keel tube channel Check that the routing of the sweep wire and all VG ropes
49. oto 22 Photo 23 Holding the tip wand in one hand pull straight aft on the cam lever and disengage the cup from the end of the wand Remove the tip wand by pulling straight aft from the end of the leading edge Photo 23 Rotate the lever inside the sail and close the access velcro Install the tip bag of the sail at this time 6 Remove the remaining top surface battens 7 De tension the crossbar sweep wire and let the wings fold in slightly Detach the bridle ring from the kingpost snap hook 8 Fold the wings all the way in to the keel pulling the sail over the top of the leading edges At each wingtip remove the tip cover bag Lay the kingpost down forward against the keel Photo 24 At this time you should be able to dismount the front ends of the nose battens from the keel tube Install the protective pad and sock over the rear wire junction bolt and the rear end of the keel ES Photo 24 9 Fold the outboard sprogs against the leading edge towards the tip Make sure the sprog zippers are fully open 10 Pull the sail out away from the keel until it is even on top and bottom Roll the sail gently and carefully parallel to the trailing edge of the front and then outboard portion of the sail Photo 25 Try to roll the sail in such a way that the leading edge portion remains as smooth as possible Do not attempt to stuff the sail between the Mylar pocket and the leading edge tube at any point where you feel resistance
50. peed Overall pitch trim is affected by several factors Among the most significant is the location along the keel of your hang point The farther forward your hang point is the faster the glider will trim the less effort will be required to fly fast and the more effort will be required to fly slow If the glider s trim is too slow it will make the glider more difficult to control in roll especially in turbulent air and when the nose pitches up on entering a strong thermal On the Discus hang loop fore and aft position is adjusted by repositioning the kingpost on the keel 12 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 Tightening the VG increases the spanwise tension which the airframe places on the sail reducing the spanwise twist and the sail elasticity The result is an increase in L D performance and a reduction in roll control authority and roll control response The VG is activated by pulling laterally on the VG rope and then moving the to set the in the cleat The recommended procedure for increasing VG tension is to grasp the rope firmly at the cleat and pull along the basebar VG full loose is for maximizing roll control authority and roll rate Between VG full loose and VG one half the
51. per position underneath the transverse batten and capture it in position Photo 15 Photo 15 EE Photo 16 14 Attach the bottom front wires to the hook on the bottom nose plate Photo 16 15 By lifting up and back on the nose batten strings push the nose battens fully back into the sail so that the tips rest on top of the keel tube Photo 17 Photo 17 Photo 18 16 Install the bottom surface battens Photo 18 17 Zip up the center sail zipper 18 Install the nosecone which is connected to the front upper wire Don t fly without the nosecone 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 Carefully check the entire length of the leading edge pocket to insure that the Mylar insert is lying flat in the pocket If any section of the Mylar is folded under de tension the crossbar remove the batten closest to the area of distortion and unfold the Mylar Along the left leading edge Open the crossbar junction access zipper and look inside making sure that side wires are properly secured to the crossbar that the thimbles are not cocked on the tang Check the split pin and the nut which secures the leading edge crossbar junction C
52. pointed in your direction of flight until it is time to flare for landing Prior to the landing flare your body position should be generally upright but slightly inclined forward with your head and shoulders forward of your hips and your legs and feet trailing slightly behind Photo 21 Many pilots make the mistake of trying to get too upright at this stage of the landing which actually reduces your flare authority and makes it harder to land on your feet Your hands should be at shoulder width and shoulder height on the uprights You should be relaxed with a light grip on the bar and your weight should be fully supported in your harness and not at all by your arms If your harness does not allow you to hang in the proper semi upright landing position hands off without supporting your weight on the control bar you will have a lot more difficulty making good landings 13 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 Remove the four shortest cambered battens and the bottom surface battens 5 Open the tip wand cam lever access velcro and pull on the string attached to the end of the lever to un cam the lever and straighten the tip wand Photo 22 Ph
53. ppear to be slightly bent out and up at the junction This is normal and by design 2 Anytime you have the sail off the frame turn the sail inside out through the bottom surface center zipper and inspect all of the batten pockets and batten pocket terminations 3 Replace bottom side wires and hang loops 4 Replace the VG ropes 5 Remove the transverse battens and inspect for damage 18 SPECIAL CIRCUMSTANCES 1 Any time you suffer a crash or extremely hard landing you should have an annual inspection done on your glider to insure that you find all damaged parts Following any hard landing be sure to inspect the apex hardware the control bar legs and basebar and all control bar fittings for damage Any time you replace a control bar leg or basebar you must carefully inspect all related fittings and replace any that are bent or damaged Hard landings may also impose very high loads on the sprog assemblies and transverse battens and bridle lines Inspect accordingly 2 your glider is ever exposed to salt water you will need to have the glider completely disassembled in accordance with the recommended annual inspection procedure All frame parts will need to be disassembled including the removal of all sleeves and bushings flushed liberally with fresh water dried completely 3 A wet glider must be dried before storing Do not leave your glider wet for more than one day because corrosion may result 4 Take special car
54. r LOSA H3JHSVM 1 4 S0 3NOZ IX 3NOZ 54 85502514 VSLSNOSIC 712502510 WALSAS s 50240 7 502510 861502510 SOLIE 77 VELSN SIA 215 5 5 5 00106 34 MOO l8 3 1SNIS 009 P NOLLOS VLSL0 490 18 SNINSLL 3 19NIS 00106 389 HOO l8 41 5 6206 38 MOO T8 4184 00 LLOL 585 ALJJYS 0092 P SA 0092 3dO8 SA 55 GELSNISIG Q3 18 455 con 4874 31 VE LSnoSIG 0000 25 qv OOO 911 ILS SNIddS 20088 TILS 89 9 SIA3 TO 9IN 9708 H3HSVM 110 8S AL343VS 56 YSLSN SIA G3 18W3SSV Z LeN 3811 31 101500510 VrLShOSIG Qv 10009 254 uoi 2oj Ja4 5 2 16 90901 11 puey yel 5 9 z LoN 29N 31 puey jybu 000 ELL VEFLOSCG 29 9 SIA3 12 LLOL 5985 ALAAVS 9XGC 09492 5 SNIddV 1 3A331S c Wit 39101 31 000 LOL VPLOSQO Old IN3993 C LoN 3811 31 57 502510 Q3 18 45 5 coN 4974 31 5 5 000073950 10441 5 eqnj 37 puey Yo 5 eqn 11 puey juBu 000 LL 5 49 9 SIA319 LLOL YS ALAAVS 9XGcC8 09292 5 3A3371S 3811 31 000 LOL VrLOSQ
55. r bag lay it down against the keel Undo the velcro which was done first reach it out to free the keel tube and install it again around both leading edges with the control bar inside Photo 31 16 Zip up the glider bag Photo 31 DISCUS STABILITY SYSTEMS Several design features of the Discus determine the glider s degree of stability in pitch combination of wing sweep and spanwise twist Reflex in the root section Reflex support bridles Outboard sprogs and the height at which they and the transverse battens support the trailing edge shape of the preformed battens and the internal fabric ribs and adjustment of the internal velcro attachments which define the airfoil setting of the tip wands Correct attachment and proper adjustment of the outboard sprogs are critical to providing adequate stability at low angles of attack particularly those below the normal operating range 16 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 The function of the system is to support the trailing edge of the sail at low angles of attack and thus provide a nose up pitching moment The sprogs are adjusted at the factory to th
56. unt the control bar apex assembly Install the protection bag on the control bar upper fittings Photo 40 Carefully roll the bottom and top cables and install the protection bag on the control bar bottom fittings Photo 41 3 Remove the middle leading edge rear crossbar tubes assembly from the front leading edges and at the same time from the front crossbar 4 Remove the rear keel middle keel tube assembly from the front keel 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 in e 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 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 Bring forward the rear keel middle keel assembly and put it beside Put the rest of the frame parts on top using pieces of soft foam as pads in places that stick out in order to protect the frame parts from damage Photo 46 7 Fold the glider bag with the sail Before doing so put some pads to avoid the sail damage from contact with the end surface of the frame Photo 47
Download Pdf Manuals
Related Search