Engineering:Arado S I

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S I
Arado S I Flight Magazine 1926-01-21.jpg
S I
Role Civil trainer
Manufacturer Arado Flugzeugwerke
First flight 1925
Number built 3 + 1 S III

The Arado S I was a biplane trainer built in Germany in 1925. The first of three prototypes was powered by a Bristol Lucifer radial engine, while the other two Arado S.Ia aircraft were fitted with the Siemens-Halske Sh 12. The Siemens-Halske Sh 11 powered the Arado S III, a virtually identical aircraft of which only a single prototype was constructed and sold to Turkey.

Specifications (S III)

Arado S I 3 view drawing NACA Aircraft Circular No.4

Data from Jane's all the World's Aircraft 1928,[1] German Aviation 1919-1945:Arado S III[2]

General characteristics

  • Crew: 2
  • Length: 7.5 m (24 ft 7 in)
  • Wingspan: 11.5 m (37 ft 9 in)
  • Height: 2.75 m (9 ft 0 in)
  • Wing area: 27.3 m2 (294 sq ft)
  • Empty weight: 600 kg (1,323 lb)
  • Gross weight: 825 kg (1,819 lb)
  • Fuel capacity: 90 L (24 US gal; 20 imp gal)
  • Powerplant: 1 Ɨ Siemens-Halske Sh.11 7-cylinder air-cooled radial piston engine, 71 kW (95 hp)
  • Propellers: 2-bladed fixed pitch propeller

Performance

  • Maximum speed: 128 km/h (80 mph, 69 kn)
  • Landing speed: 50 km/h (31 mph; 27 kn)
  • Range: 500 km (310 mi, 270 nmi)
  • Service ceiling: 3,700 m (12,100 ft)
  • Rate of climb: 1.66 m/s (327 ft/min)
  • Time to altitude: 1,000 m (3,300 ft) in 10 minutes; 2,000 m (6,600 ft) in 22 minutes 30 seconds
  • Wing loading: 30 kg/m2 (6.1 lb/sq ft)
  • Power/mass: 0.0861 kW/kg (0.0524 hp/lb)

References

  1. ā†‘ Grey, C.G., ed (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. pp. 128cā€“129c. 
  2. ā†‘ "Arado S III". http://histaviation.com/ar_s_3.html. Retrieved 9 February 2018. 

Further reading

  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. pp. 73. 
  • World Aircraft Information Files. Brightstar Publishing, London. File 889 Sheet 73