Putilov Stal-11

Stal-11
Role	High-Speed Transport / Reconnaissance Aircraft
National origin	USSR
Manufacturer	OOS (Otdel Opytnogo Samolyetostroeniya - section for experimental aircraft construction)
First flight	Autumn 1936
Number built	1

The Stal-11 (Stal – steel) was a high speed transport aircraft / reconnaissance aircraft designed and built in the USSR from 1933.

Development

The Stal-11 was intended to carry four passengers with mail and baggage as well as fulfil a military reconnaissance role. The Stal-11 was constructed an using Enerzh-6 stainless steel built up truss covered with Delta-wood for the fuselage, an all wood wing with built up ribs, two spars and very smooth skinning complete the structure. The prototype was completed in the Autumn of 1936, flight trials commencing shortly after, with wheels and skis. Results of the approx. 300 flight tests were promising but the aircraft was expensive to build, with high running costs so no production was authorised.

Specifications (Stal-11

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

General characteristics

• Crew: 1
• Capacity: 4 pax
• Length: 12.5 m (41 ft in)
• Wingspan: 15 m (49 ft 2-1/2 in)
• Wing area: 31 m² (333.7 ft²)
• Empty weight: 1,830 kg (4,034 lb)
• Gross weight: 2,700 kg (5,952 lb)
• Powerplant: 1 × M-100A, 626.4/641.3 kW (840/860 hp)

Performance

• Maximum speed: 430 km/h (267 mph)
• Cruising speed: 370 km/h (230 mph)
• Range: 1,000 km (621 miles)
• Service ceiling: 8,000 m (26,250 ft)

See also

Aircraft of comparable role, configuration and era

• Lockheed Vega
  

Related lists

• List of aircraft
  

References

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