Sukhoi Su-12

Su-12
Role Reconnaissance aircraft
Manufacturer Sukhoi
Designer Pavel Sukhoi
First flight 26 August 1947
Status Prototype
Primary user Soviet Air Forces
Number built 1

The Sukhoi Su-12 (Aircraft RK) was a prototype Soviet reconnaissance and artillery spotter aircraft developed during World War II.

Development

In November 1943, the Sukhoi OKB designed an artillery spotter aircraft based on the German Focke-Wulf Fw 189.[1] As designed, the aircraft had a crew of three and was powered by a pair of Shvetsov M-62 engines. The aircraft was initially denied funding but was eventually approved thanks to an intervention by the Soviet Chief Marshal of Artillery N.N. Voronov.[1] As a result of evolving specifications, the crew was increased to four and the engines were changed to more powerful Shvetsov ASh-82M with 1,640 kW (2,200 hp).

The Su-12 prototype flew on 26 August 1947 with N.D. Fikson at the controls. The test flight program was completed by 30 October. Due to problems with the ASh-82M engines, the powerplant was changed to ASh-82FN making 1,380 kW (1,850 hp), but while reliable, the less-powerful engines caused the Su-12 to miss its top speed and service ceiling specifications.[1] The Su-12 successfully completed government testing in September 1949 and was recommended for production. Due to lack of production capacity in the USSR, in October 1949 it was proposed to build the airplane in Czechoslovakia. However, the application for production was denied, citing failure to meet performance specifications.[1] Subsequent efforts by the Sukhoi Design Bureau to secure funding and continue work on the Su-12 were denied.

Operators

 Soviet Union

Specifications (Su-12)

Data from Shavrov[2]

General characteristics

Performance

  • Maximum speed: 530 km/h (330 mph; 285 kts) at 5,600 m (18,370 ft)
  • Range: 1,140 km (710 mi; 615 nmi)
  • Service ceiling: 11,000 m (36,090 ft)
  • Rate of climb: 7.5 min to 5,000 m (16,405 ft)
  • Takeoff roll: 230 m (755 ft)
  • Takeoff roll: 320 m (1,050 ft)

Armament

See also

Aircraft of comparable role, configuration and era

References

  • Antonov,Vladimir & Gordon, Yefim & others. OKB Sukhoi”. Leicester. Midland. 1996. ISBN 1-85780-012-5
  • "Sukhoi Su-12". Sukhoi Company Museum. Archived from the original on 2011-09-29. Retrieved 2011-07-12.

Notes

  1. 1 2 3 4 "Sukhoi Su-12". Sukhoi Company Museum. Archived from the original on 2011-09-29. Retrieved 2007-01-14.
  2. ↑ Shavrov V.B. (1994). Istoriia konstruktskii samoletov v SSSR, 1938-1950 gg. (3 izd.). Mashinostroenie. ISBN 5217004770.
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