TYPE: Tandem-seat ultralight motor glider.
PROGRAMME: Derivative of Airsport Sonet with increased wing span; narrow track, retractable mainwheels; Z-type, retractable propeller; and tandem seating. Prototype first flew September 2004.
Description generally as of Sonet, except the following.
DESIGN FEATURES: Constant-chord wing centre-section; two-stage sweepback with progressively increased dihedral; rounded wingtips.
FLYING CONTROLS: Large ailerons mid-wing. Flap settings -10, 0, 10°.
LANDING GEAR: Tailwheel type. Fixed, solid tailwheel; narrow track mainwheels retract rearwards on cantilever legs with compressed rubber shock-absorbers. Fixed outrigger wheels.
POWER PLANT: One 36.8 kW (49.3 hp) Hirth F23 two-cylinder piston engine driving a Jirasek two-blade, fixed-pitch propeller. Two fuel tanks in wings; total capacity 52 litres (13.7 US gallons; 11.4 Imp gallons).
DIMENSIONS, EXTERNAL:
- Wing span: 15.05 m (49 ft 4½ in)
- Length overall: 6.80 m (22 ft 3¾ in)
- Height overall: 1.45 m (4 ft 9 in)
AREAS:
- Wings, gross: 14.30 m² (153.9 sq ft)
WEIGHTS AND LOADINGS:
- Weight empty: 278 kg (613 lb)
- Max T-O weight: 450 kg (992 lb)
PERFORMANCE (powered):
- Never-exceed speed (VNE): 106 kt (198 km/h; 123 mph)
- Stalling speed: 30 kt (55 km/h; 35 mph)
- Max rate of climb at S/L: 120 m (394 ft)/min
PERFORMANCE (unpowered):
- Stalling speed, flaps down: 36 kt (65 km/h; 41 mph)
- Best glide ratio: 35
- Min rate of sink: 0.80 m (2.62 ft)/s
