Tumanski RD-9

from Wikipedia, the free encyclopedia
Tumanski RD-9B

The Tumanski RD-9 (originally Mikulin AM-9 until 1956 ) was a single-shaft turbojet air jet engine that was developed and mass-produced in the USSR .

The engine was developed from the Mikulin AM-5 by redesigning the compressor. It was the first jet engine that was fully developed in the USSR and reached series production. In 1953 it passed its acceptance test with 25.5 kN (without afterburner).

The standard version RD-9B is a jet engine with a nine-stage axial compressor and a tubular ring combustion chamber with ten combustion tubes. An afterburner with a variable thrust nozzle has been added opposite the exit engine . The turbine is designed in two stages and is also flowed through axially. This version was produced in series from 1955. The acceleration time from idle to full power was up to 17 s.

RD-9 versions

The RD-9B was also used in the first prototype of the 152 / I  V1 from VEB Flugzeugwerke Dresden , in the later samples this was replaced by the specially developed Pirna 014 .

Technical specifications

  • Starting thrust with afterburner: 31.87 kN
  • Starting thrust without afterburner: 25.5 kN
  • Nominal thrust: 21.08 kN
  • Travel thrust: 16.87 kN
  • Specific consumption
    • with afterburner: 1.6 kg / kph
    • for travel services: 0.86 kg / kph
  • Max. Speed: 11,150 min −1
  • Turbine inlet temperature: 860 ° C
  • Turbine outlet temperature: 680 ° C
  • Air flow: 43 kg / s
  • Compression: 7.2: 1
  • Weight (dry): 700 kg
  • Diameter: 670 mm
  • Length: 5560 mm


  • Jürgen Michels, Jochen Werner: Aviation East 1945–1990. History of German aviation in the Soviet occupation zone (SBZ) and the GDR. Bernard & Graefe, 1994, ISBN 3-7637-6109-8 .
  • Bill Gunston: The Osprey Encyclopedia of Russian Aircraft: 1875-1995. Osprey, 1995, ISBN 1-85532-405-9 .

Web links

Commons : Tumansky RD-9  - collection of images, videos and audio files