Mikulin AM-3

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RD-3M engine

The Mikulin AM-3 (also known as RD-3M) is a turbojet engine developed in the Soviet Union by the designer Alexander Alexandrowitsch Mikulin , which was used from 1952.

History and commitment

The development of the powerful single-shaft engine began in 1948. In 1947 a delegation of Soviet engine specialists at Rolls-Royce were shown the Nene and Derwent engines . During this visit, Mikulin’s deputy, Subzow, accidentally saw parts of the new Avon engine with axial compressor. As is often claimed, this was not new for the Russians, as they already had a model of the German Junkers 012 engine in 1946 , which corresponded to the Avon at the time in terms of design and performance. Subzow developed his own axial compressor for the future AM-3 during 1948. The development work was completed in mid-1949, the finished drawings were available by the end of the year and series production began in 1950. By 1963, 3534 copies of the AM-3 were made by plants No. 16 in Kazan and No. 19 in Perm .

The engine was used in different versions for the aircraft types Tupolev Tu-16 and Tu-104 as well as Myasishchev M-4 . It had a single-stage blowers and an eight-stage high-pressure compressor , that of a two-stage high-pressure turbine is driven. With the help of the similarity theory, Mikulin developed the AM-3 shortly afterwards into the proportionally reduced AM-5 (also RD-5), which was completed in 1950 and produced from 1953. It was used, for example, in the Jak-25 and (again modified and now referred to as Tumanski RD-9 ) in the MiG-19 .

Technical data (AM-3)

  • Length: 5380 mm
  • Diameter: 1400 mm
  • Dry matter: 3200 kg
  • Thrust: 85.3 kN
  • Print ratio: 8.2: 1
  • Max. Air flow: 150 kg / s
  • Fuel consumption: 0.932 kg / (kN • h)
  • Temperature in front of the turbine: 1130 ° K

Versions (AM-3)

  • AM-3, AM-3A: first series versions
  • AM-3D: Version for M-4 with 85.6 kN thrust
  • AM-3M-200, AM-3M-500, AM-3M-500A: further developed versions with 93.1 kN
  • WP-8: Chinese copy of the AM-3 with 91.3 kN thrust for the Xian H-6 (replica of the Tu-16)

Versions (AM-5)

  • AM-5, AM-5A: first series version with 21.6 kN thrust
  • AM-5F: improved version with 26.5 kN thrust (with afterburner) (e.g. for I-340 )

literature

  • Lew P. Berne: Mikulin and the "Baade" bomber . In: FliegerRevue Extra . No. 18 , ISSN  0941-889X , p. 28-39 .

Web links

Commons : Mikulin AM-3  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ Ulf Gerber: The great book of Soviet aviation 1920–1990 . Rockstuhl, Bad Langensalza 2019, ISBN 978-3-95966-403-5 , p. 362 .