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SAI KZ II Kupé 3.jpg
KZ II Kupé in Danmarks Flymuseum
Role Sport aircraft
National origin Denmark
Manufacturer Skandinavisk Aero Industri
Designer Viggo Kramme and Karl Gustav Zeuthen
First flight 11 December 1937
Primary user Danish Air Force
Number built 45

The SAI KZ II was a sport aircraft built in Denmark in 1937, produced in three major versions before and after the Second World War. In its original form, designated the Kupé (Danish: "Coupé") it was a low-wing cantilever monoplane of conventional design with fixed tailwheel undercarriage and two seats side-by-side under an enclosed canopy. the fuselage structure was of steel tube, skinned in plywood and fabric, and the wings were wooden with plywood covering and could be folded back along the fuselage for transport and storage.

This was followed by the aerobatic KZ II Sport with a revised fuselage design, placing the two seats in separate open cockpits in tandem, and a dedicated military trainer version along the same lines, the KZ II Træner ("Trainer"). This latter type was first produced in 1946, as a step towards rebuilding Denmark's air force after the war. They remained in service until 1955, when nine examples were sold into private hands.

In 2008, an example of each variant (including the sole extant KZ II Sport) is preserved in the Danmarks Flymuseum.



  • Danish Navy - ordered 4 × KZ II Sport, but these were confiscated by Germany before delivery
  • Danish Air Force - 15 × KZ II Træner operated between 1946 and 1955

Specifications (KZ II Træner)[edit]

General characteristics

  • Crew: Two, pilot and instructor
  • Wingspan: 10.20 m (33 ft 6 in)
  • Wing area: 15.0 m2 (161 ft2)
  • Empty weight: 550 kg (1,210 lb)
  • Gross weight: 850 kg (1,870 lb)
  • Powerplant: 1 × de Havilland Gipsy Major, 108 kW (145 hp)


  • Maximum speed: 220 km/h (140 mph)
  • Range: 650 km (410 miles)
  • Service ceiling: 5,000 m (16,400 ft)

See also[edit]

Related lists