Putilov Stal-3
| Stal-3 | |
|---|---|
| Role | Transport |
| National origin | USSR |
| Designer | A.I. Putilov |
| First flight | 1933 |
| Number built | 79 |
| Developed from | Putilov Stal-2 |
The Stal-3 (Stal – steel) was a transport aircraft designed and built in the USSR from 1933.
Development
[edit]The Stal-3 was an enlarged development of the Putilov 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
[edit]
Specifications (Stal-3)
[edit]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)
See also
[edit]Aircraft of comparable role, configuration, and era
Related lists
References
[edit]- Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995. ISBN 1-85532-405-9