BGA glider data sheet - T.31 (Tandem Tutor, Kirby Cadet Mk III)

Data source: Air Cadet Publication, ATC publication, A.P.2983A & Slingsbys’ drawing DRG 31B-301

Manufacturer: Slingsby

Phone: 01751 432474

Fax: 01751 431173

Weighing Data:
Max weight (dry) Max pilot weight (seat load)

Kg Pounds 377 830 109 240

Forward C of G limit (aft of datum) Aft C of G limit (aft of datum) Front pilot forward of datum

mm 381 533 419

inches 15.0 21.0 16.5

Control deflections in mm Up Down

Ailerons Elevator

186-192 162 min

80-110 162 min

Zero TE droop

Rudder Left

Right

255-315 255-315

Rear pilot position aft of datum 571 22.5

Spoilers Fully open 102-114

Aileron cable tensions are 25-30 lb measured on either vertical cable by the rear windscreen.

Elevator cable tension is 35-40 lb measured in the rear cockpit on the cable running aft out of the control torque tube.

Longitudinal datum: Wing root LE

Horizontal datum: Top longeron horizontal

Maximum speeds

Knots Kph

Knots Kph

VNE T.31

69 128 Manoeuvre

52 96

VNE Kirby Cadet Mk III 70

130 Aerotow

52 96

Rough air

52

96

Winch / auto tow 48

89

Max winch weak link: 1000 lb (BGA figure 500 Kg Tost white) Tyre pressure:30-35 psi Non aerobatic - Cloud flying not permitted

Notes: Span 13.2 meters

This sheet compiled by: Dave Bullock & Tim Macfadyen Date: 6 May 2003 Updated 5 April 2014 Control deflections changed to inches instead of degrees