BGA glider data sheet - Rhönlerche II (Often incorrectly called the “Ka 4”)

Data source: Manufacturers’ Handbook

Date of issue: 1954

Manufacturer: Schleicher (mostly home built)

Phone:

Fax:

UK Agent: Peter Wells

E Mail: zuluglasstek@clara.net

Phone: 01844 208 157

Link to mandatory mods:

Fax: 01844 201 028

Weighing Data:
Max weight (dry)

Kg Pounds 408 900

Control deflections in mm
Up Down Measuring
point

Max free play

Max pilot weight (seat load)

100 220

mm Inches Forward C of G limit (aft of datum) 366 14.4

Aft C of G limit (aft of datum)
Front pilot position (forward of datum) Rear pilot position (rear of datum)
Ballast weights (forward of datum)

540 21.25 450 17.7 460 18.1 1035 40.75

Ailerons 135 55 ±20 ±15

Inboard TE

Elevator
Airbrakes Rudder

210 ±30
Left 420 ±30

142 ±20
Right 420 ±30-

Longitudinal datum: Wing root LE (Rib 1).

Horizontal datum: Bottom of Rib 1 horizontal

Maximum speeds

Knots Kph

VNE

92 170 Aerotow

Rough air

65 120 Winch / auto tow

Manoeuvre

Knots 65 49

Kph 120 90

Max winch weak link: 900Kg (brown) Tyre pressure: Non/semi/fully aerobatic non cloud flying, (spinning and stalling are permitted).
Notes: -
The tailplane is at an incidence of -2° with wing rib 1 bottom surface horizontal.

This sheet compiled by: Tim Macfadyen

Date: 21 September 2001

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