BGA glider data sheet - Dart 15, 17 & 17R (T.51, T.51/17 & T.51/17R)

Data source Pilots Notes

Date of issue: April 1975

Manufacturer: Slingsby

Phone: 01751 432474

Fax: 01751 431173

Weighing Data:

Kg Pounds

Dart 15 Max weight (dry)

354 780

Dart 15 BGA concession nonaerobatic max weight (dry) [+3%]

365

Dart 17 Max weight (dry)

372

Dart 17 BGA concession non- 383
aerobatic max weight (dry) [+3%]

mm

Forward C of G limit (aft of datum) 229

803
820 844
Inches 9.0

Aft C of G limit (aft of datum)

345 13.6

Pilot position (forward of datum) 584 23

Control deflections in mm Up Down Measuring
point

Max free play

Ailerons 105 55 ±5 ±5

TE inboard end

6mm total at top of stick

Elevator 60 ±5

77 ±5

Inboard end

3mm between halves 6mm total at top of stick

Trim
Airbrakes
Rudder

26 32 +4 +4 -2 -2
142 min

Inboard end
(TP at -5º)
Top paddle

Left & right 185 small rudder (15M) 218 large rudder (17 M)

Measure at extreme TE

Elevators to be within ¼º of each other. Elevator load at centre of stick hand grip with spring connected to be 2lb greater than with spring disconnected. Load to move trimmer 10lb±1lb at TE of tab. The air brakes are to be ¾ mm below the wing surfaces when locked. When a metal tailplane (Mod 60) is fitted add 3mm to all elevator and trim deflections.

Longitudinal datum: Wing root LE

Horizontal datum: Rear fuselage top 1000:30 tail down

Maximum speeds

Knots Kph

VNE

119 220 Aerotow

Rough air

82 152 Winch / auto tow

Knots 82 71

Kph 152 132

Max winch weak link: 1000 lb (450 Kg) (BGA 600 Kg, Tost Blue) Tyre pressure:25 PSI (1.76 Kg/cm2)
Semi aerobatic - Cloud flying permitted
The original Dart 15s had wooden spars. The later 15s and all 17s have lighter aluminium spar booms redux bonded to the wooden structure. The 15R and 17R have a retractable undercarriage. The 15W and 17W had a Wortman wing section of higher performance but which gave less stall/spin warning.

This sheet compiled by: Tim Macfadyen Last update 30.4.2008 (Dart 17 AUW increased as per SAS)

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