BGA glider data sheet - Ventus a & b (15 & 16.6 meter)

Data source: Flight Manuals & BGA data

Date of issue:

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

Weighing Data:

Control deflections in mm

Max weight 15 M

Kg Pounds 430 948

Max weight 15 M serial Nos 94 on see 525
TN 349-7 for details and Mods required

Max weight 16.6 M

430

1157 948

Ailerons

Up Down 44±4 25±4

Distance hinge to measuring point
132

Max free play
±3

Elevator 40±4 47±4 157

±3

Max weight non lifting components 220
(everything except wings)

BGA concession non-aerobatic 231 max weight of non lifting components [+5%]

Max weight non lifting components
(everything except wings) serial Nos 94 on see TN 349-7 for details and Mods required.

241

485 509
531

Rudder Flaps

Left & right 160±20
28±2 30±2

340 141

Brakes 100±2

120

±3

BGA concession non-aerobatic max weight of non lifting components [+5%] serial Nos 94 on
see TN 349-7 for details and Mods required

253

Max pilot weight (seat load)

110

mm

Forward C of G limit (aft of datum) 200

Aft C of G limit (aft of datum)

340

Pilot position (forward of datum)

518

558
242 Inches 7.87 13.39 20.4

Weight kg Moment kg cm

Elevator

0.67 - 0.85

Rudder

4.43 - 4.97

Flap 2.31 - 2.95

Inner ailerons 1.10 - 1.40

Outer ailerons 1.02 - 1.30

Tip ailerons 16.6 0.14 - 0.18 meters

Longitudinal datum: Wing root LE Horizontal datum: Rear fuselage top 1000:44 tail down

Each 2 Kg nose weight reduces the minimum cockpit load by 5 Kg.

Maximum speeds

VNE at altitude

Knots Kph

Height (meters) Height (feet) Knots Kph

VNE

135 250

Up to 5 000

Up to 16 400 135

250

Rough air

102 190

5 000

16 400

135 250

Rough air Turbo

97 180

6 000

19 680

134 249

Manoeuvre

102 190

7 000

22 960

127 235

Aerotow

97 180

8 000

26 240

120 222

Winch / auto tow

81 150

9 000

29 520

113 209

Flaps 0, +1, +2 & L

86

160

10 000

32 800

106 197

U/C down

97 180

12 000

39 360

92 171

Max winch weak link: 635 Kg (Tost blue)

Max fore & aft play at the wing tip 30mm.

Tyre pressure: Up to 330 Kg (727 lb) AUW 3,5 bar (50 psi). Over 330 Kg (727 lb) AUW 4,7 bar 67 psi

Semi aerobatic, cloud flying permitted

This sheet compiled by: Tim Macfadyen Last Update: 18 Aug 2009 Control surface weights headings corrected

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