BGA glider data sheet - Discus 2a Data source: Flight Manual Date of issue: Oct 1998 Manufacturer: Schempp Hirth, Flugzeugbau GmbH, Postfach 1443, D-73222 Kirchheim/Teck, Germany Phone: 00 49 7021 7298-0 Fax: 00 49 7021 7298-199 www.schempp-hirth.com UK Agent: Southern Sailplanes Phone: 0148 871774 Fax: Weighing Data: Control deflections in mm Max weight (with water) Kg Pounds 525 1157 Up Down Distance - Max hinge to measuring point free play Max landing weight (with water) 525 1157 Ailerons 63±3 30±3 152 ±3 Max weight dry 370 816 BGA concession non-aerobatic max weight (dry) [+3%] 381 Max weight of non lifting 250 components (everything except wings) 840 551 Elevator Rudder Rudder 44 44 +3 -2 +3 -2 Left & Right 155 ± 15 138 315 ±3 Weight kg Moment kg cm 3,90 to 4,80 -2,0 to 3,2 BGA concession non-aerobatic max weight of non lifting components [+5%] Max pilot weight (seat load) 262 579 110 242 Elevator half 0,85 to 1,06 1,1 to 1,6 Inner ailerons S/N 1 to 11 4,00 to 4,90 0 to 1,27 mm Inches S/N 12 3,00 to 3,70 3,40 to 4,40 Forward C of G limit (aft of datum) 247 Aft C of G limit (aft of datum) 381 9.72 15.00 Outer ailerons S/N 1 to 11 1,00 to 1,22 -0,30 to 0.08 Pilot position (forward of datum) 450 17.72 S/N 12 0,95 to 1,16 -0,30 to 0,20 Longitudinal datum: Wing root LE Horizontal datum: Rear fuselage top 1000:31 tail down. Distance wheel behind datum (a) 139mm. Main wheel to tail wheel/skid (b) 3927mm Max fore & aft play at the wing tip 30mm total. Max play between inner & outer ailerons ±1 mm (107mm from hinge). Maximum speeds VNE at height Knots Kph Height (meters) Height (feet) Knots Kph VNE 135 250 4 - 5 000 13 - 16400 131 243 Rough air 108 200 Up to 6 000 Up to 19680 124 230 Manoeuvre 108 200 Up to 7 000 Up to 22960 117 217 Aerotow 97 180 Up to 8 000 Up to 26240 111 205 Winch / auto tow 81 150 Up to 9 000 Up to 29520 104 193 U/C down 97 180 Up to 10 000 Up to 32800 98 182 Up to 12 000 Up to 39360 85 158 Max winch weak link: 683 Kg (Blue) Tyre pressure: 5 bar (73 psi), tail wheel 2 Bar (29 psi). Semi aerobatic, cloud flying permitted Each (2.1 kg) lead weight mounted on the right hand side of the stick reduces min cockpit load by 5 kg. Fill 1 litre of water in the tail tank for each 25 litres of water in the wings. This sheet compiled by: Tim Macfadyen Date: 8 Nov 2002 Page 47 of 153