title: Arado S I
text: # Arado S I
  
  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)
  
  Data from Jane's all the World's Aircraft 1928, German Aviation 1919-1945:Arado S III
  
  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 $m^2$ (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 × 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 $kg/m^2$ (6.1 lb/sq ft)
  * Power/mass: 0.0861 kW/kg (0.0524 hp/lb)
  