BGA glider data sheet - DG 500/505 Elan Orion (17.2, 18 & 20 meter un-flapped)

Data source: Manufacturer’s flight & maintenance manuals Date of issue: 1995

Manufacturer: Glaser-Dirks Flugzeugbau GmbH

Web site dgflugzeugbau.de

UK Agent: Bob McLean Web site:

Phone: 01904 738653

Fax: 01904 738146

Link to mandatory mods:

Weighing Data:

Control deflections in mm

Kg Pounds Max weight (take off & landing) 750 1653

Up Down Distance - Max free

hinge to

play

measuring

point

Fully aerobatic max weight

625 1378

Ailerons 75 ± 3 38 ± 3 144

± 1.5

Max weight (dry) 17.2 Meter

645 1422

Elevator 99 ± 1 91 ± 1 227

±2

Max weight (dry) 18 Meter Max weight (dry) 20 Meter

650 1434 657 1448

Rudder Left & Right 217 to 212

420

1 top hinge

Max weight of non lifting components (everything except wings)
BGA concession non-aerobatic max weight of non lifting components [+5%]

445 467

981 1030

The aileron free play is measured at the aileron root with the stick locked. The elevator play is measured at the stick with the elevator locked.

Max front pilot (seat load)

110 242

Controls Moments & weights

Max combined front and rear pilot weights (seat loads)
Forward C of G limit (aft of datum) Aft C of G limit (aft of datum) Front pilot position (forward) Rear pilot position (forward)

210
mm 185
480 1350
240

463
Inches 7.28
18.9 53.15 9.45

Moment cm Kg

Rudder Elevator

7 - 10 13 - 16

Inner aileron Outer aileron

5 - 7.08 0.8 - 1.2

Weights Kg
4.4 - 5.1 4.3 - 5.1
4.0 - 5.0 0.4 - 0.6

Weighing Longitudinal datum: Wing root LE. Horizontal datum: Top of rear fuselage 1000: 33 tail down. The fin battery weighs 4,3 kg & is 5306mm aft of datum. The 3 nose ballast weights weigh 2,2 kg each and are 1920mm forward of datum, each reduces min front cockpit load by 2,9 kg. Tail tank A (wing water compensation) is 5032mm aft of datum, it holds 6.6 kg. Tail tank B (pilot weight compensation) is 5160mm aft of datum, it holds 12,3 kg.

Maximum speeds

Knots Kph

Knots Kph

VNE at altitude Knots Kph

VNE

146 270

Aerotow

103 190

0-6600 feet

146 270

Rough air 103 190

Winch / auto tow 76

140

6600–10 000 138 256

Manoeuvre 103

190

U/C down

103 190

10 000–13 000 131

243

13 000–16 000 124

230

Notes :-

16 000-20 000 117

218

Max winch weak link: 1000 Kg (black)

Tyre pressures: Nose wheel 2.5 bar, 36 psi. Main wheel 3 bar, 44 psi. Tail wheel 4 bar, 58 psi

Semi aerobatic (“utility”) Cloud flying permitted, 750 Kg AUW (+5,3, -2,65 G at VA & +4 & -1.4 G at VNE).

Aerobatic (Inverted flight) +7, -5 G at all speeds. Max AUW 625 Kg, 17.2 & 18M only, no water ballast.

Max 3,5 G with airbrakes extended in all configurations.

Replace the elevator rubber cord (bungee) every 5 years. Replace the brake fluid every 4 years with DOT 3, DOT 4 or SAE J 1703 fluid. Annual leak check of wheel brake system - hold full brake for 2 minutes.

German (LBA) Type certificate number 348

This sheet compiled by: Tim Macfadyen

Date: 21 May 2002

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