KZ I
KZ I replica in Danmarks Flymuseum
Role Sport aircraft
National origin Denmark
Manufacturer Skandinavisk Aero Industri
Designer Viggo Kramme and Karl Gustav Zeuthen
First flight 24 February 1937
Number built 1

The SAI KZ I was a sport aircraft built in Denmark in 1937, the first aircraft built by the Kramme & Zeuthen firm.

Design and development

The KZ I was a low-wing cantilever monoplane of conventional design, with fixed tailwheel undercarriage and an open cockpit with a single seat. Construction throughout was of wood.

Only a single KZ I was constructed, and it disappeared during the course of World War II. During the 1970s, a flying replica was built, with work started by Gunnar Fjord Christensen in 1972 and sold to the Danmarks Flymuseum in 1977. The completed aircraft, powered by a more powerful but heavier 50 hp (37 kW), 1.5 L (92 cu in) Volkswagen flat-four engine, flew for the first time on 20 November 1988 and in 2008 remains part of the museum's collection.

Specifications

Data from Danmarks Flymuseum : KZ I.[1]

General characteristics

  • Crew: 1
  • Wingspan: 7.2 m (23 ft 7 in)
  • Wing area: 8.4 m2 (90 sq ft)
  • Airfoil: root: NACA 23018; tip: NACA 23009[2]
  • Empty weight: 192 kg (423 lb)
  • Gross weight: 325 kg (717 lb)
  • Powerplant: 1 × ABC Scorpion two cylinder air-cooled horizontally-opposed piston engine, 28 kW (38 hp)
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 180 km/h (110 mph, 97 kn)
  • Landing speed: 60 km/h (37 mph; 32 kn)
  • Cruise speed: 160 km/h (99 mph, 86 kn)
  • Service ceiling: 5,000 m (16,000 ft)

References

  1. ↑ "KZ I". flymuseum.dk (in Danish). Copenhagen. Retrieved 19 April 2019.
  2. ↑ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Further reading

  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 563.
  • Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. pp. 348–49.
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