Slingsby Motor Tutor

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T.29 Motor Tutor
Slingsby T-31M Motor Tutor AN0309572.jpg
Role Motorglider
National origin United Kingdom
Manufacturer Slingsby Sailplanes
Designer John Sproule
First flight 1948
Number built 3
Developed from Slingsby T.8 Kirby Tutor

The Slingsby T.29 Motor Tutor was a single-seat motor glider produced from 1948, by Slingsby Sailplanes in Kirbymoorside, Yorkshire.

Design and development[edit]

Utilising the wings, struts and tail unit of the T.8 Kirby Tutor, the T.29 Motor Tutor had a new fuselage incorporating a wheeled undercarriage and the cockpit under the wing centre section. Early trials revealed resonance of the front wing struts, which was rectified by adding a vertical bracing strut vertically up to the mainspar. This modification was introduced for all Kirby Tutors to allow aero-tow launching.

Development[edit]

Two versions of the T.29 Motor Tutor were produced, T.29A with a 25h.p. Scott Flying Squirrel engine and the T.29B with a 40 h.p. Aeronca JAP J.99. Both of these versions flew successfully but considerable difficulty was had certificating the aircraft with the Air Registration Board, which precluded production. The T.29A was exported and the T.29B crashed at Dunstable in 1964. In 1966 an additional T.29 was discovered by R.G. Boyton at Epsom in Surrey, and is stored pending restoration.

Specifications (T.29A)[edit]

General characteristics

  • Crew: One
  • Wingspan: 43 ft 334 in (13.24 m)
  • Wing area: 170 ft2 (15.8 m2)
  • Aspect ratio: 11.1
  • Wing profile: Göttingen 426
  • Powerplant: 1 × Scott Squirrel, 25 hp (18.64 kW)

Performance

  • Maximum glide ratio: 16:1

See also[edit]

Aircraft of comparable role, configuration and era
Related lists

References[edit]

  • Ellison, N.H. British Gliders and Sailplanes 1922–1970. A & C Black, 1971
  • Simons, M. Slingsby Sailplanes. Airlife Publishing, 1996 - ISBN 1-85310-732-8