BGA glider data sheet - Diamant 18 meter

Data source: Manufacturers flight manual Date of issue: Jan 1969

Manufacturer: Flug-und Fahrzeugwerke AG, Alternrhein 9422, Staad SG, Switzerland

Link to mandatory mods:

Weighing Data:

Control deflections in mm

Kg Pounds

Up Down

Max weight with water

440 970

Measuring point

Max weight dry
BGA concession non-aerobatic max weight (dry) [+3%]

408 900 420 927

Elevator Rudder

65 ± 5 65 ± 5 TE at Centre
225 ± 10 left & TE at top right

Water capacity 50 -60 litres

50 60

Max weight of non lifting 240 components (everything except wings)

110 132
530

BGA concession non-aerobatic max weight of non lifting components [+5%] Max pilot weight (seat load)
Forward C of G limit (aft of datum) Aft C of G limit (aft of datum) Pilot position (forward of datum)

252 556
mm Inches 267 10.5 345 13.8 610 24.0

Ailerons

Outer

Flaps neutral 44 ± 4 19 ± 4 ends

Flaps full + 31 ± 4 31 ± 4

Flaps full - 48 ± 4 8 ± 4

Flaps set Ailerons set Flap travel

+15° Neutral

43 ± 3 Down

- 12° Neutral

35 ± 3 Up

0° Up

13 ± 2 Up

0° Down

17 ± 2 Down

Measure flaps at their inboard ends.

Longitudinal datum: Wing root LE

Horizontal datum: Fuselage top immediately behind the canopy tail down 35 mm over first meter.

Maximum speeds

Knots Kph

Knots Kph

VNE

130 240

U/C down

130 240

Rough air

90 165

U/C operation

81 150

Manoeuvre

90 165

Airbrakes open

130 240

Aerotow

81 150

Flaps fully positive 81 150

Winch / auto tow 81

150

Always use full negative flaps above 110 Knots (204 Kph)

Max winch weak link: 923 Kg (Brown) Tyre pressure: 2 bar (30 psi). Semi aerobatic. Cloud flying is permitted. The rudder hydraulic damper must always be completely full of hydraulic fluid - ESSO UNIVIS J43
This sheet compiled by Tim Macfadyen Date 25 September 2002
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