BGA glider data sheet - Discus BT Data source: Flight Manual Date of issue: Dec 1984 Span 15 meters 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: Kg Pounds Max weight (with water) without 525 1157 engine or fuel tank installed Control deflections in mm Up Down Distance - Max hinge to measuring point free play Max weight (with water) with 450 992 engine & fuel tank installed Ailerons 65±5 35±5 162 ±3 Max landing weight = max take off weight Elevator 47±4 47±4 157 ±3 Max weight of non lifting components (everything except wings) With engine & fuel tank installed Max weight of non lifting components (everything except wings) Without engine & fuel tank installed Max pilot weight (seat load) 290 255 110 639 562 242 Rudder Left Right 340 160 160 ±20 ±20 mm Inches Weight kg Moment kg cm Forward C of G limit (aft of datum) 260 Aft C of G limit (aft of datum) 400 10.24 15.75 Ailerons Elevator 3,71 - 4,21 0,67 - 0,85 1,7 - 3,7 2,6 - 3,3 Pilot position (forward of datum) 450 17.72 Rudder 4,43 - 4,97 0 - 2,4 Longitudinal datum: Wing root LE Horizontal datum: Rear fuselage top 1000:44 tail down Max fore & aft play at the wing tip 35mm total. For every 28 litres of water in the wings put 1 litre in the fin tank. Each standard 2.2 kg nose weight reduces minimum pilot weight by 5 kg. Maximum speeds Knots Kph VNE at altitude Height (meters) Height (feet) Knots Kph VNE 135 250 4 - 5 000 13 - 16400 131 243 Rough air 97 180 Up to 6 000 Up to 19680 124 230 Manoeuvre 97 180 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 Engine extended 86 160 Up to 10 000 Up to 32800 98 182 Up to 12 000 Up to 39360 85 158 Max winch weak link: 680 Kg (Blue) Tyre pressure:Up to 360 Kg (794 lb) AUW 50 psi, 3,5 bar. Higher AUW, 64 psi, 4,5 bar. Tail tyre pressure 29 psi, 2 Bar With engine installed - non aerobatic, non cloud flying Without engine installed & without water ballast - semi aerobatic & cloud flying permitted This sheet compiled by: Tim Macfadyen Date: 29 May 2003 Page 48 of 167