TYPE: Tandem-seat ultralight biplane kitbuilt.

CUSTOMERS: Prototype (OK-IUD 04) constructed in 2004.

DESIGN FEATURES: Scale replica of Aero C 104 biplane, itself a licence-built Bücker Bü 131 Jungmann. Equal-span upper and lower wings, lower plane attached to bottom longerons; upper mounted on twin N-type strut cabane and twin interplane struts; wire bracing. Wire-braced tailplane.

FLYING CONTROLS: Conventional and manual. Interconnected ailerons on upper and lower wings. Unbalanced elevators and rudder; trim tab on each elevator.

STRUCTURE: Fuselage of welded steel tube and wooden wing, both covered with Ceconite fabric.

LANDING GEAR: Tailwheel type; fixed. Two faired-in side Vs attached to lower longerons, plus half-axles attached to tripod compression frame. Fully castoring tail wheel.

POWER PLANT: One 55.1 kW (73.9 hp) Parma Mikron III four-cylinder, in-line piston engine driving a two-blade propeller.

ACCOMMODATION: Pilot and passenger in separate, open cockpits. Aircraft is flown solo from rear cockpit.


  • Wing span: 6.60 m (21 ft 7¾ in)
  • Length overall: 6.25 m (20 ft 6 in)
  • Height overall: 2.06 m (6 ft 9 in)


  • Wings, gross: 12.00 m² (129.2 sq ft)


  • Weight empty: 285 kg (628 lb)