Progress D-18T

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D-18T
Engine D-18T.jpg
D-18T engine installed on an Antonov An-124 "Ruslan" prototype
Type Turbofan
National origin Soviet Union/Ukraine
Manufacturer Motor Sich
Designed by Ivchenko-Progress
First run 1982
Major applications Antonov An-124
Antonov An-225
Number built 188[1]

The Progress D-18T (or Lotarev D-18T) is a three-spool, high-bypass turbofan engine rated at more than 20,000 kg (44,000 lb) of thrust and designed to power very large transport aircraft.

Design and development[edit]

The engine was designed by the Ivchenko-Progress Design Bureau and is manufactured by the Motor Sich factory in Zaporizhia, Ukraine. It was the first engine in the USSR that could deliver more than 20,000 kgf (~196 kN or ~44,000 lbf) of thrust.

  • September 19, 1980 - first start of a full-scale engine.
  • December 24, 1982 - An-124 maiden flight.
  • December 19, 1985 – engine passes official bench tests.

Currently 188 D-18T engines are in operation with a total flight time of over 1 million hours.

Applications[edit]

Specifications (D-18T)[edit]

Three D-18T engines on Antonov An-225 Mriya
One of the four D-18T of an Antonov An-124

Data from forecastinternational.com[2][3]

General characteristics

  • Type: Three-spool high bypass turbofan engine with a single-stage fan
  • Length: 5.4 m (212.6 in)
  • Width: 2.93 m (115.6 in)
  • Height: 2.79 m (109.9 in)
  • Fan diameter: 2.33 m (91.73 in)
  • Diameter:
  • Dry weight: 4,100 kg (9,039 lb)

Components

  • Compressor: Seven-stage IP compressor, seven-stage axial HP compressor
  • Combustors: Annular combustion system
  • Turbine: Single-stage HP turbine, single-stage IP turbine, four‑stage LP turbine

Performance

See also[edit]

Comparable engines
Related lists

References[edit]

External links[edit]