BGA glider data sheet - LS 4
Data source Manufacturers’ handbooks Date of issue: 1981 Manufacturer: Rolladen-Schneider UK Agent: McLean Aviation www.mcleanaviation.co.uk e.mail: mcleanaviation@aol.com Tel:-01904 738653

Weighing Data: Max weight with water

Kg Pounds 472 1041

Max landing weight

Max weight of non lifting 230 components (everything except wings)

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

241

507 532

Max pilot weight (seat load)

110 242

mm

Forward C of G limit (aft of datum) 225

Aft C of G limit (aft of datum)

375

Pilot position (forward of datum) 553 155 lb pilot

Inches 8.86 14.76 21.8

Control deflections in mm

Up Down Distance -
hinge to measuring point

Max free play

Ailerons 65±5 40±3 165mm

3 total

Elevator *364 *245 148mm ±5 ±5

3 total

*Distance from TE to reference point on fin. Distance is 300mm with elevator neutral

Airbrakes 150 min

At inner end

Rudder Left & Right 310mm

1 at

150±10

top

Moments and weights of control surfaces

Weight at TE Total weight

Elevator 0.33 - 0.44 kg 1.41 - 1.90 kg

Rudder ±0.04 kg

3.70 - 4.10 kg

Aileron 0.60 - 0.80 kg 3.50 - 5.00 kg

Longitudinal datum: Wing root LE

Horizontal datum: Rear fuselage bottom horizontal

Maximum speeds

Knots Kph

Knots Kph

Height feet

VNE Height Knots meters

VNE Kph

VNE

146 270

Winch / auto tow 70

130

0-6500 146 0-2000 270

Rough air 97

180

Airbrakes open 146

270

To 10 000 139

To 3000 257

Manoeuvre 97

180

To 20 000 118

To 6000 219

Aerotow

97

180

To 33 000 93

To 10000 173

Max winch weak link: 600 kg (Tost blue)

Tyre pressures: Main wheel 3 - 3.5 bar (43 - 50 psi) Tail wheel 2,5 bar (36 psi)

Semi aerobatic (without water-ballast). Cloud flying permitted

Note: -The trim weights in front of the rudder pedals weigh 2.45 kg (5.4 lb) each, they reduce min pilot weight by twice their own weight.

Load required to collapse undercarriage 12-15 Kg at joint above wheel. Replace gas strut if load is low.

A 2.7 kg battery can be fitted in the top of the fin.

This sheet compiled by: Tim Macfadyen Date: 27 March 2002 Last update 5 May 2012: UK agent changed

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