BGA glider data sheet - Skylark 4 (T.50)

Data source: Pilot’s Notes

Date of issue:

Manufacturer: Slingsby

Phone: 01751 432474

Fax: 01751 431173

Link to mandatory mods:

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

Kg Pounds 377 830 388 855

Max weight of non lifting components (everything except wings)

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)

115 mm 293 420 571

253 inches 11.52 16.55 22.5

Control deflections in mm
Up Down Measuring point

Ailerons Elevator

96 ±5
187 ±10

37 Inboard TE ±2 (5±2mm droop)
145 Inboard TE ±10

Trim

40 min 40 min TE

Rudder Airbrakes

Left 375 +15 -0 130 min

Right 375 +15 -0

Extreme TE

Aileron cable tension 25-30 lb

Elevator cable tension 40-50 lb

Longitudinal datum: Wing root LE

Horizontal datum: Rear fuselage top 42.5:1000 tail down (2.4°)

Maximum speeds

Knots Kph

VNE

123 228 Aerotow

Rough air

76 141 Winch / auto tow

Manoeuvre

76 141 Airbrakes open

Knots 76 76 123

Kph 141 141 228

Max winch weak link: 1000 lb (BGA figure 600 Kg blue) Tyre pressure:Main 40 - 50 psi Semi aerobatic - Cloud flying permitted

Notes: -
Span 18.2 meters

This sheet compiled by: Dave Bullock & Tim Macfadyen Date: 6 November 2001

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