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Slingsby T21 Sedburgh BJF

C of A to 2nd August 2025

BGA Number 1000 

Trigraph BJF

P9040562a Pete Benbow & John Henry T21 BJF

General characteristics

  • Crew: 2

  • Length: 26 ft 9 in (8.16 m)

  • Wingspan: 54 ft 2 in (16.5 m)

  • T.21P: 50 ft (15 m)

  • Wing area: 260 sq ft (24.2 m2)

  • Aspect ratio: 11.2

  • Airfoil: Göttingen 535 at the roots, tip: symmetrical

  • Empty weight: 600 lb (272.16 kg)

  • Max takeoff weight: 1,049 lb (476 kg)

Performance

  • Never exceed speed: 91 kn

  • Max aerotow speed:  65 kn

  • Max winch launch speed: 55 kn

  • g limits: +7.5 - 3.8 at 62 kn

  • Maximum glide ratio: 21:1 at 37 kn

  • Min rate of sink: 175 ft/min 33 kn

  • Approach Speed 40 kt

  • Min approach speed 35 kt

  • Wing loading: 4.0 lb/sq ft (19.6 kg/m2)

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