TeST TST-9 Junior

The TeST TST-9 Junior is a Czech shoulder-wing, single-seat motor glider that was designed and produced by TeST of Brno. When it was available the aircraft was supplied as plans, in kit form for amateur construction or as a complete ready-to-fly aircraft. Production is now complete and the aircraft is no longer available.[1]

TST-9 Junior
Role Motor glider
National origin Czech Republic
Manufacturer TeST
Status Production completed
Unit cost
€22,240 (2004)
Developed from TeST TST-7 Junior
Variants TeST TST-13 Junior

Design and development

The TST-9 Junior was a development of the TST-7 Junior touring motor glider, incorporating a T-tail and other design refinements. The 12.4 m (40.7 ft) span, shoulder-mounted wing is slightly forward-swept. The wing has less span than the TST-7 Junior and consequently the aircraft has a lower glide ratio. The landing gear is of tricycle configuration, making taxiing the aircraft much easier than the monowheel gear used on the TST-1 model. The aircraft was later further refined into the TST-13 Junior.[1]

The price for a completed ready-to-fly aircraft in 2004 was €22,240.[1]

Specifications (TST-9 Junior)

Data from World Directory of Leisure Aviation[1], Jane's all the World's Aircraft 2004–05[2]

General characteristics

  • Crew: one
  • Length: 5.9 m (19 ft 4 in)
  • Wingspan: 12.4 m (40 ft 8 in)
  • Height: 2.1 m (6 ft 11 in)
  • Wing area: 10 m2 (110 sq ft)
  • Aspect ratio: 15.4
  • Empty weight: 175 kg (386 lb)
  • Max takeoff weight: 300 kg (661 lb)
  • Fuel capacity: 25 l (6.6 US gal; 5.5 imp gal)
  • Powerplant: 1 × Rotax 447 two stroke aircraft engine
  • Propellers: 2-bladed SportProp 1600

Performance

  • Cruise speed: 165 km/h (103 mph, 89 kn) max; 90–120 km/h (56–75 mph; 49–65 kn) economical
  • Stall speed: 63 km/h (39 mph, 34 kn) in the landing configuration
  • Never exceed speed: 180 km/h (110 mph, 97 kn)
  • Service ceiling: 5,000 m (16,000 ft)
  • g limits: +4 / -2
  • Maximum glide ratio: 20:1 at 90 km/h (56 mph; 49 kn)
  • Rate of climb: 4.6 m/s (900 ft/min)
  • Rate of sink: 1.5 m/s (300 ft/min)
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See also

References
  1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 59. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  2. Jackson, Paul, MRAeS, ed. (2005). Jane's all the World's Aircraft 2004–05. London: Jane's Publishing Group. p. 117. ISBN 0-7106-2614-2.
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