BGA glider data sheet - Duo Discus Turbo Data source: Flight & maintenance manuals Date of issue: May 2000 / 2002 Manufacturer: Schempp Hirth, Flugzeugbau GmbH, Postfach 1443, D-73222 Kirchheim/Teck, Germany Phone: 00 49 7021 7298-0 www.schempp-hirth.com UK Agent: Southern Sailplanes Phone: 0148 871774 Weighing Data: Kg Pounds Max weight (take off & landing) 700 with or without water Max wing water 198 1543 435 Control deflections in mm Up Down Distance hinge to measuring point Ailerons 71 ± 5 36 ± 5 176 Max free play ±3 Max fin water 11 24 Elevator 52 ± 4 52 ± 4 170 ±3 Max weight of non lifting components (everything except wings) 490 1080 Rudder Left & Right 190 ± 20 410 Max seat load (front & rear seats) 110 242 Controls Moments & Weights weights Kg Rudder 4.8 to 5.9 Moments cm Kg -10 to -7 mm Inches Elevator half (without fitting) 0.8 to 1.0 3.65 to 4.50 Forward C of G limit (aft of datum) 45 1.77 Inner aileron 4.3 to 5.9 8 to 10 Aft C of G limit (aft of datum) 250 9.84 Outer aileron 0.54 to 0.7 1.6 to 2.0 Front pilot position (forward) Rear pilot position (forward) 1400 290 55.12 11.42 Exceeding these weights by 15% is allowable because of additional mass balance. Moments must be as above. Weighing Longitudinal datum: Wing root LE. Horizontal datum: Top of rear fuselage 1000:45 tail down. The standard nose weights each reduce min front cockpit load by 5 kg. One litre may be put in the tail tank for each 34 litres in the wing tanks. Tail tank is 5320mm aft of datum. Main wheel is 65mm aft of datum. Tail wheel is 5330mm aft of datum, tail skid is 5365mm aft of datum. Maximum speeds Knots Kph Knots Kph VNE at altitude Knots Kph VNE Rough air 135 97 250 180 Engine extended ignition “on” 67 125 6600 - 10 000 feet 10 - 13 000 feet 130 124 241 229 Manoeuvre 97 Aerotow* (Fin pitot) Winch / auto tow 97* 81 180 180* 150 Engine extended ignition “off” 86 Max speed for extending engine 59 Min speed for extending engine 49 160 110 90 13 - 16 000 feet 16 - 20 000 feet 20 - 23 000 feet 23 - 26 000 feet 26 - 30 000 feet 117 217 111 205 105 194 99 183 93 172 U/C down 97 180 Max cylinder head temp - 275°C 30 - 33 000 feet 87 162 33 - 39 000 feet 76 141 Notes :- *Max aerotow speed is 81 knots (150 KpH) with a nose pitot. TN 396-5 (Mod 396-10) introduces a fin pitot. Max winch weak link: 910 Kg (Brown) German (LBA) Type certificate number 396 Tyre pressures: Nose & tail wheels 3 bar, 43 psi. Main wheel 4 bar, 57 psi. Non aerobatic, intentional spinning prohibited. Cloud flying is not permitted. Fuel - unleaded automobile min RON 95 or 100LL. Fuel oil mixture 30:1. Oil - Castrol Super TT two stroke oil. Fuel capacity, centre fuselage tank 16.2 litres (16 useable). Brake fluid SAE - J 1703 or US specification FMVVS 116, DOT 3 resp. DOT 4 This sheet compiled by: Tim Macfadyen Date: 6 December 2002 Latest update 14 April 2015 intentional spinning prohibited, previously allowed in error.