Lyulka AL-21

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The Lyulka AL-21 is an air jet engine that was developed in the USSR by Archip Mikhailovich Lyulka from the early 1960s as the successor to the AL-7 and manufactured in large-scale production from 1967. Up to 1991, 5011 copies were built in Plant No. 45 in Moscow .

The standard version AL-21F-3 is a single-shaft jet engine with a 14-stage axial compressor with guide vanes that were adjustable in the 1st to 4th and 10th to 14th stages. The turbine blades of the first two stages of the three-stage turbine were cooled by diverted air from the compressor. The combustion chamber was a tubular ring combustion chamber with 12 nozzles.

AL-21 versions

  • AL-21F - version for the Tu-128
  • AL-21F-3 - Version from 1970 for the MiG-23 B, Su-22 and Su-24 as well as T-10 and Su-17
  • AL-21F-3A - Version for Su-17M and Su-24M

photos

Technical specifications

  • Starting thrust with afterburner: 110 kN
  • Starting thrust without afterburner: 76.5 kN
  • Max. Speed: 11,150 / min
  • Turbine inlet temperature: 1370 ° C
  • Max. Air flow: 104 kg / s
  • Compression: 14.75: 1
  • Weight (dry): 1800 kg (1580 kg for Al-21F)
  • Diameter: 1.03 m
  • Length: 5.34 m

Web links

Commons : Lyulka AL-21  - Collection of images, videos and audio files

swell

  1. Ulf Gerber: The great book of Soviet aviation 1920–1990 . Rockstuhl, Bad Langensalza 2019, ISBN 978-3-95966-403-5 , p. 374 .
  2. Aircraft Engines ( Memento of the original from March 16, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.roe.ru
  3. ^ Lyulka AL-21
  4. al-21f (Russian)