TYPE: Single-seat ultralight motor glider.
PROGRAMME: Developed in late 1990s, is a derivative of the earlier TST-9 Junior 2000, itself derived from the TST-7 Junior.
DESIGN FEATURES: Forward-swept, high-wing monoplane with T tail. Tailplane removable for storage and transportation. Tailplane aerofoil NACA 0011.
FLYING CONTROLS: Conventional and manual. Ailerons and elevators rod-actuated, rudder by cables. Two position flaps; uper-surface spoilers.
STRUCTURE: Composites wing with I-shaped spar identical to that used on TST-10 glider. Fuselage of sandwich structure with integral empennage. Wing, with plywood and fabric covering; glass fibre wingtips. All-wood fuselage except for glass fibre panel behind cockpit.
LANDING GEAR: Tailwheel type; fixed. Fuselage-mounted spring cantilever mainwheel legs with wheel fairings and 300x100 wheels; 120x30 steerable tailwheel.
POWER PLANT: One 31.0 kW (41.6 hp) Rotax 447 engine and two-blade SportProp 1600 propeller standard; or suitable equivalent; 37.0 kW (49.6 hp) Rotax 503 can also be fitted. Standard fuel capacity 20 litres (5.3 US gallons; 4.4 Imp gallons); this can be optionally increased to 40 litres (10.6 US gallons; 8.8 Imp gallons) by use of interchangeable wing tank.
EQUIPMENT: Optional BRS parachute.
DIMENSIONS, EXTERNAL:
- Wing span: 15.00 m (49 ft 2½ in)
- Length overall: 7.05 m (23 ft 1½ in)
DIMENSIONS, INTERNAL:
- Cabin max width: 0.59 m (1 ft 11¼ in)
AREAS:
- Wings, gross: 10.03 m² (108.0 sq ft)
WEIGHTS AND LOADINGS:
- Weight empty: 195 kg (430 lb)
- Max T-O weight: 300 kg (661 lb)
- with BRS parachute system: 322 kg (709 lb)
PERFORMANCE, POWERED:
- Never-exceed speed (VNE), and max speed with spoilers extended: 108 kt (200 km/h; 124 mph)
- Max cruising speed: 86 kt (160 km/h; 99 mph)
- Normal cruising speed: 65 kt (120 km/h; 75 mph)
- Stalling speed: 36 kt (65 km/h; 41 mph)
- g limits: +4.8/-2.8
PERFORMANCE, UNPOWERED:
- Best glide ratio at 50 kt (93 km/h; 58 mph): 32
