Progress D-18T
| D-18T | |
|---|---|
| |
| D-18T engine installed on an Antonov An-124 "Ruslan" prototype | |
| Type | Turbofan |
| National origin | Soviet Union/Ukraine |
| Manufacturer | Motor Sich |
| Designer | Ivchenko-Progress |
| First run | Template:Avyear |
| 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
The triple-shaft, 51,500 lbf (229 kN) turbofan was developed in the early 1980s by the Ukrainian Ivchenko-Progress design bureau.[2] It 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. 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.[2] Currently 188 D-18T engines are in operation with a total flight time of over 1 million hours.
Applications
Specifications (D-18T)
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Data from forecastinternational.com[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
- Maximum thrust: 23,430 Kgf; 229.85 kN (51,670 lbf)
- Overall pressure ratio: 27.5
- Bypass ratio: 5.7
- Turbine inlet temperature: 1,600 K (1,327 °C; 2,420 °F)
- Thrust-to-weight ratio: Approx 5.7:1
See also
Comparable engines
- General Electric CF6
- Pratt & Whitney JT9D
- Pratt & Whitney PW4000
- Rolls-Royce RB211-524
- Rolls-Royce Trent 500
Related lists
References
- ^ D18T at deagel.com
- ^ a b Guy Norris (Oct 10, 2018). "Freighter Growth And Possible An-124 Reengining Boost CF6 Prospects". Aviation Week & Space Technology.
- ^ D-18 by Lotarev
External links
- D-18T Series 3 Turbofan Aero Engine - SE Ivchenko-Progress
- Information about D-18T engine, Ivchenko-Progress, archived from the original on 2012-02-14