Putilov Stal-3

The Stal-3 (Stal – steel) was a transport aircraft designed and built in the USSR from 1933.

Stal-3
Role Transport
National origin USSR
Designer A.I. Putilov
First flight 1933
Number built 79
Developed from Stal-2

Development

The Stal-3 was an enlarged development of the Stal-2, designed at the OOS (Otdel Opytnogo Samolyetostroeniya - section for experimental aircraft construction), with a simplified structure which reduced manufacturing man-hours and structural weight, whilst increasing the design load factor. The layout of the aircraft was very similar to the Stal-2, but featured larger dimensions, slotted flaps, a wide chord engine cowling, slotted ailerons, and spatted wheels with brakes, or skis depending on season.

Flight testing began in 1933 with acceptable results, leading to a production order for 79. The Stal-3 was an important aircraft with the GVF / Aeroflot until 1941, continuing to give service on utility duties with Aeroflot and the Soviet Air Force.


Operators
 Mongolia
 Soviet Union

Specifications (Stal-3)

Data from Gunston, Bill. "Encyclopaedia of Russian Aircraft 1875-1995". London:Osprey. 1995. ISBN 1-85532-405-9

General characteristics

  • Crew: one/two
  • Capacity: 6/7
  • Length: 10.68 m (35 ft 0.5 in)
  • Wingspan: 17.02 m (55 ft 10 in)
  • Wing area: 34.8 m2 (364.6 sq ft)
  • Empty weight: 1,672 kg (3,686 lb)
  • Gross weight: 2,817 kg (6,210 lb)
  • Powerplant: 1 × M-22 , 358 kW (480 hp)

Performance

  • Range: 940 km (584 mi, 507 nmi)
  • Service ceiling: 5,340 m (17,250 ft)
  • Rate of climb: 3.333 m/s (656.2 ft/min)
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See also

Aircraft of comparable role, configuration and era

Related lists

References
    • Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995. ISBN 1-85532-405-9
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