Lotaryov D-18

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Lotaryov D-18T on an Antonov An-124
Lotarjow D-18T at the Antonow An-225 "Mrija"

The Lotarjow D-18 (also called Iwtschenko Progress D-18 ) is a three-shaft turbofan engine with a high bypass ratio made by the manufacturer Iwtschenko Progress , which was developed in the Soviet Union and named after Vladimir Alexejewitsch Lotarjow .

The turbofan engine was first used on a maiden flight in 1982 and was designed for the two aircraft types Antonov An-124 and An-225 . It is considered to be one of the most powerful engines in the world.

Related engines are the D-18TM and D-18TP, which were to be used on the planned An-218 .

Technical specifications

The following technical data are mentioned:

  • Length: 5.40 m
  • Width: 2.93 m
  • Height: 2.79 m
  • Fan diameter: 2.33 m
  • Empty weight: 4100 kg
  • Compressor: seven-stage IP compressor, seven-stage axial HP compressor
  • Combustion chamber: annular combustion system
  • Turbine: single-stage high-pressure turbine, 2 high-pressure turbine stages, 4 low-pressure turbine stages
  • Maximum thrust: 229.85 kN
  • Total pressure ratio: 27.5
  • Thrust-to-weight ratio: approx. 5.7: 1

Web links

Commons : Progress D-18T  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b D-18 by Lotarjow. Russian Aviation Museum, accessed September 11, 2018 .