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KZ X
	KZ X prototype, after modification into KZ X Mk.2, in Danmarks Flymuseum
Role	Observation aircraft
National origin	Denmark
Manufacturer	Skandinavisk Aero Industri
First flight	29 September 1951
Primary user	Danish Army
Number built	12

The SAI KZ X was a light aircraft produced in Denmark for army co-operation duties in the early 1950s.

Design and development

The KZ X was a strut-braced, high-wing, two seat military observation monoplane developed from the KZ VII with a more powerful,108 kW (145 hp), Continental C145 engine.^[1]

Deliveries to the Danish Army began in 1952 but by the summer of that year two had already crashed. The investigations of these crashes, attributed to failure of the wooden rudder, were conducted with technical assistance from Britain's Royal Aircraft Establishment but no underlying defect in the aircraft design was uncovered. The prototype was modified with a steel-framed rudder as the KZ X Mk.2 but the KZ X was returned to service. When two more crashes took place in 1954 the type was finally withdrawn then scrapped in 1960, leaving the prototype as the only surviving example.^[1] It is now in the Danmarks Flymuseum, active again in 2009 after restoration.^[2]^[3]

Operators

Denmark

Royal Danish Army

Specifications

General characteristics

Crew: Two
Length: 6.50 m (21 ft 4 in)
Wingspan: 9.41 m (30 ft 10 in)
Height: 2.20 m (7 ft 3 in)
Wing area: 13.0 m² (140 sq ft)
Empty weight: 529 kg (1,166 lb)
Gross weight: 860 kg (1,896 lb)
Powerplant: 1 × Continental C145 air-cooled flat-six piston engine, 108 kW (145 hp)

Performance

Maximum speed: 215 km/h (134 mph, 116 kn)
Range: 800 km (500 mi, 430 nmi)
Service ceiling: 4,400 m (14,400 ft)

References

^ ^a ^b Simpson, Rod (Winter 2021). "The KZ Legacy". Air Britain Aviation World: 238–242.
^ Ogden, Bob (2009). Aviation Museums and Collections of Mainland Europe. Air Britain (Historians) Ltd. p. 78. ISBN 978-0-85130-418-2.
^ "Danmarks Flymuseum". 23 December 2021.