BGA glider data sheet - Ventus bT (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

Fax:

Weighing Data:

Control deflections in mm

Kg Pounds

Up Down Distance - Max

hinge to

free play

measuring

point

Max weight 15 M

525 1157

Ailerons 44±4 25±4 132

±3

Max weight 16.6 M

430 948

Elevator 40±4 47±4 157

±3

Max weight of non-lifting 270 components (everything except wings)

BGA concession max weight of non-lifting components [+5%]. This only applies where the manufacturers manual quotes the glider as semi-aerobatic. It then becomes nonaerobatic when flown at this higher weight.

284

595 625

Rudder
Flaps Brakes

Left Right 160 160 ±20 ±20
28±2 30±2
100±2

340
141 120

±3

Weight kg Moment kg cm

Max pilot weight (seat load)

110 242

Elevator

0.67 - 0.85

Rudder

4.43 - 4.97

mm Inches

Flap

2.31 - 2.95

Forward C of G limit (aft of datum) 200 7.87

Inner ailerons 1.10 - 1.40

Aft C of G limit (aft of datum)

340 13.39

Outer ailerons 1.02 - 1.30

Pilot position (forward of datum)

518 20.4

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

Engine extended

86 160

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

Non aerobatic or semi-aerobatic without water ballast depending upon model, see individual flight manuals.

Cloud flying permitted

This sheet compiled by: Tim Macfadyen

Revised 21 June 2007 360mm aft C of G limit for Turbo deleted, it was an error.

Revised 18 May 2014 to cover semi-aerobatic as well as non-aerobatic models.