SAI KZ III

The SAI KZ III Laerke was a Danish light utility aircraft used by the Danish Air Ambulance Service and Danish Air Force.

SAI KZ III Laerke
KZ III air ambulance at The Danish Collection of Vintage Aircraft
Role utility aircraft
Manufacturer SAI
First flight 1944-09-11
Primary user Denmark
Produced 1946–1951
Number built 64

The first flight was on 11 September 1944, when Denmark was still under German occupation (the Germans permitted an aircraft to be built for Danish Air Ambulance Service).[1]

The aircraft had a high wing and was of mixed construction, fabric- and plywood-covered.

Operators

Civil operators
 Denmark
  • Danish Air Ambulance Service

Military operators
 Denmark

Specifications

Data from Jane's all the World's Aircraft 1947[2]

General characteristics

  • Crew: one
  • Capacity: one
  • Length: 6.6 m (21 ft 8 in)
  • Wingspan: 9.6 m (31 ft 6 in)
  • Height: 2.1 m (6 ft 11 in)
  • Wing area: 13 m2 (140 sq ft)
  • Airfoil: NACA 23012[3]
  • Empty weight: 368 kg (811 lb)
  • Max takeoff weight: 706 kg (1,556 lb) with auxiliary tank full, 34 kg (75 lb) and extra 21 kg (46 lb) luggage
  • Fuel capacity: 68.2 l (18.0 US gal; 15.0 imp gal) main tank in fuselage + 41 l (11 US gal; 9.0 imp gal) auxiliary tank ; Oil capacity 8.2 l (2.2 US gal; 1.8 imp gal)
  • Powerplant: 1 × Blackburn Cirrus Minor II 4-cyl. inverted air-cooled in-line piston engine, 75 kW (100 hp)
  • Propellers: 2-bladed Weybridge, 1.9 m (6 ft 3 in) diameter wooden fixed pitch propeller

Performance

  • Maximum speed: 185 km/h (115 mph, 100 kn) at sea level
  • Cruise speed: 170 km/h (110 mph, 92 kn) at 2,200 rpm
  • Landing speed: 55 km/h (34 mph; 30 kn)
  • Range: 500 km (310 mi, 270 nmi)
  • Ferry range: 805 km (500 mi, 435 nmi)
  • Service ceiling: 4,115 m (13,501 ft)
  • Maximum glide ratio: 1:8 (flaps up); 1:5 (flaps down)
  • Rate of climb: 3.6 m/s (700 ft/min)
  • Wing loading: 48.83 kg/m2 (10.00 lb/sq ft)
  • Power/mass: 9.72 kg/kW (16 lb/hp)
  • Take-off run: 70 m (230 ft)
  • Landing run: 50 m (160 ft)
gollark: They have okay cameras, low power demands, and usable networking capability.
gollark: Personally, if I were to operate a camera like this, I would attain an outdated phone of some sort and just use that.
gollark: It makes no sense. Dimmer lighting should mean longer exposure.
gollark: What? It should be the other way round.
gollark: Any recent computer will have hardware video encoders for at least H.264 also.

See also

Related development

Aircraft of comparable role, configuration and era

References
  1. "The KZ-III". Flight. L (1966): 215. 29 August 1946. Retrieved 2008-09-15.
  2. Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 111c.
  3. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Further reading
  • Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. pp. 348–49. ISBN 1-85310-577-5.
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