TYPE: Tandem-seat ultralight biplane kitbuilt.

PROGRAMME: Prototype (OK-AUO 23) flying by 2005.

DESIGN FEATURES: Single-bay biplane of classic appearance; stressed for aerobatic manoeuvres where national regulations allow.
Constant-chord wings with rounded tips; rounded fin and elevator tips. Open cockpits. Wings braced by streamlined. N-type interplane struts and wires; upper wing on central cabane. Empennage braced by steel struts and wires.
Wing sections NACA 63A415 (upper) and NACA 2412 (lower).

FLYING CONTROLS: Conventional and manual. Interconnected ailerons on upper and lower wings. Aileron and elevator actuation by pushrods; rudder by cables.

STRUCTURE: Glass fibre fuselage; wings of conventional ribs and spars with fabric covering.

LANDING GEAR: Tailwheel type; fixed. Fuselage-mounted, spring cantilever mainwheel legs and steerable tailwheel. Hydraulic mainwheel brakes.

POWER PLANT: One 59.7 to 89.5 kW (80 to 120 hp) piston engine driving a two-blade propeller. Fuel capacity 50 litres (13.2 US gallons; 11.0 Imp gallons).


  • Wing span: 7.30 m (23 ft 11½ in)
  • Length overall: 6.00 m (19 ft 8¼ in)
  • Height overall: 2.15 m (7 ft 0¾ in)


  • Wings, gross: 14.50 m² (156.1 sq ft)


  • Weight empty (average): 220 kg (485 lb)
  • Max T-O weight: 450 kg (992 lb)

PERFORMANCE (89.5 kW; 120 hp engine):

  • Max cruising speed: 86 kt (160 km/h; 99 mph)
  • Stalling speed: 36 kt (65 km/h; 41 mph)
  • Max rate of climb at S/L: 360 m (1,180 ft)/min
  • Range: 297 n miles (550 km; 341 miles)