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Progress D-18T

Soviet high-bypass turbofan

Summary

Soviet high-bypass turbofan

Field	Value
name	D-18T
image	Engine D-18T.jpg
caption	D-18T engine installed on an Antonov An-124 "Ruslan" prototype
engine_type	Turbofan
national_origin	Soviet Union / Ukraine
designer	Ivchenko-Progress
manufacturer	Motor Sich
first_run	1980
major_applications
number_built	188

The Progress D-18T (or Lotarev D-18T) is a 51,500 lbf high-bypass turbofan that powers the Antonov An-124 Ruslan and An-225 large freighters.

Design and development

The engine was developed in the second half of the 1970s by the then Soviet Ivchenko-Progress design bureau. The first start of a full-scale engine occurred on September 19, 1980, the An-124 maiden flight on December 24, 1982 and the engine passed official bench tests on December 19, 1985.

An upgraded 3M version was developed to reduce emissions and increase the life of the hot section to 14,000 h, and is introduced on An-124s of Antonov Airlines. Currently 188 D-18T engines are in operation with a total flight time of over 1 million hours.

Incidents

In March 2020 Ukrainian authorities ordered a one time inspection of all D-18T engine intermediate pressure compressor disks following an uncontained engine failure. Inspections were required to be carried out within six months. On 13 November 2020 a Volga-Dnepr Airlines An-124 had an uncontained failure of the inboard left (number 2) D-18T engine.

Applications

Three of the six D-18T engines on [[Antonov An-225]] ''Mriya''

Antonov An-124
Antonov An-225 (destroyed 2022)

Specifications (D-18T)

One of the four D-18T engines of an [[Antonov An-124

Width: 2.93 m (115.6 in)
Height: 2.79 m (109.9 in)
Fan diameter: 2.33 m (91.73 in)
Bypass ratio: 5.7 |power/weight= |thrust/weight=5.72

References

[http://www.deagel.com/Turbofan-Engines/D-18T_a000901001.aspx D18T] at deagel.com
Progress, Ivchenko. (2020). "Engines of the third millennium".
Guy Norris. (Oct 10, 2018). "Freighter Growth And Possible An-124 Reengining Boost CF6 Prospects". Aviation Week & Space Technology.
Kaminski-Morrow, David. (23 March 2020). "An-124 disk inspection ordered after uncontained failure".
(13 November 2020). "An124 runway excursion".
"D-18 by Lotarev".
"D-18T turbofan".

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

ivchenko-progress-aircraft-engines high-bypass-turbofan-engines 1980s-turbofan-engines three-spool-turbofan-engines

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