Expansion + specs |
Intro |
||
Line 1: | Line 1: | ||
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> |
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> |
||
[[Image:Eurofighter triebwerk.jpg|thumb|300px|Eurojet EJ200s]] |
[[Image:Eurofighter triebwerk.jpg|thumb|300px|Eurojet EJ200s]] |
||
The '''Eurojet EJ200''' is a military [[turbofan]], used as the powerplant of the [[Eurofighter Typhoon]]. The engine is largely based on the Rolls-Royce XG-40 technology demonstrator which was developed in the 1980s. |
The '''Eurojet EJ200''' is a military [[turbofan]], used as the powerplant of the [[Eurofighter Typhoon]]. The engine is largely based on the [[Rolls-Royce plc|Rolls-Royce]] '''XG-40''' technology demonstrator which was developed in the 1980s. |
||
The EJ200 is built by the Eurojet consortium, the partner companies of which are |
The EJ200 is built by the '''Eurojet Turbo GmbH''' consortium, the partner companies of which are Rolls-Royce, [[Avio]] of [[Italy]], [[ITP]] of [[Spain]] and [[MTU Aero Engines]] of [[Germany]]. |
||
==Development== |
==Development== |
Revision as of 17:21, 5 July 2007
The Eurojet EJ200 is a military turbofan, used as the powerplant of the Eurofighter Typhoon. The engine is largely based on the Rolls-Royce XG-40 technology demonstrator which was developed in the 1980s.
The EJ200 is built by the Eurojet Turbo GmbH consortium, the partner companies of which are Rolls-Royce, Avio of Italy, ITP of Spain and MTU Aero Engines of Germany.
Development
Rolls-Royce XG-40
Rolls-Royce began development of the XG-40 technology demonstrator engine in 1984.[1] Development costs were met by the British government (85%) and Rolls-Royce.[2]
In Turin on 2 August 1985 Italy, West Germany and the UK agreed to go ahead with the Eurofighter. The announcement of this agreement confirmed that France had chosen not to proceed as a member of the project.[3] One issue was French insistence that the aircraft be powered by the SNECMA M88, in development at the same time as the XG-40.[4]
Eurojet EJ200
The Eurojet consortium was formed in 1986 to co-ordinate and manage the project largely based on XG-40 technology. Flight International described the similarities; "In common with the EJ200, the XG-40 has a three-stage fan with a high pressure ratio, five-stage low-aspect-ratio HP compressor with active tip-clearance control, a combustor using advanced cooling and thermal protection, and single-stage HP and LP turbines with PM discs and low-density single-crystal blades."[5]
The technology of the EJ200 makes it both smaller and simpler in layout than current powerplants while giving it lower fuel consumption and an unprecedented power-to-weight ratio - all vital factors in enhancing the multi-mission performance and effectiveness of combat aircraft.
Eurojet GmbH
Eurofighter GmbH was formed in 1986 to manage the development, production, support, maintenance, support and sales of the EJ200.[6] The original partners were Rolls-Royce, MTU, Fiat and Sener. Fiat's aircraft engine division was demerged and is now Avio. Sener's aircraft engine division is now ITP, with ownership split between Sener and Rolls-Royce.
Partner company | Development share | Production share | Responsibilities |
---|---|---|---|
Rolls-Royce | 33% | 34.5% | Combustion system, High pressure turbine and engine health monitoring system. |
MTU Aero Engines | 33% | 30% | Low pressure and high-pressure compressors, system design responsibility for the Digital Engine Control and Monitoring Unit |
Avio | 21% | 19.5% | Low-pressure turbine, reheat system, gearbox and air/oil system. |
ITP | 13% | 16% | Exhaust nozzles, jet pipe, exhaust diffuser, by-pass duct and external dressings. |
Specifications
General characteristics
- Type: Turbofan
- Length: 4.0 m
- Diameter: 0.737 m
- Dry weight: approx. 1,000kg
Components
- Compressor: 5 stage
Performance
- Maximum thrust: 90kN (20,000 lbf) with afterburner/60kN (13,500 lbf) without
- Overall pressure ratio: 26:1
- Specific fuel consumption: 21-23 g/kNs with afterburner/47-49 g/kNs without
- Thrust-to-weight ratio: approx. 10:1
Source: Eurojet GmbH (EJ200 Engine Data Fact Sheet)
References
- ^ Donne, Michael (1984-03-05). "Rolls to develop engine for fighters". The Times. Times Newspapers.
{{cite news}}
:|access-date=
requires|url=
(help) - ^ "Rolls Readies Demonstrator Engine For European Fighter Aircraft". Aviation Week & Space Technology. McGraw-Hill. 1986-06-23.
{{cite news}}
:|access-date=
requires|url=
(help) - ^ Lewis, Paul (1985-08-03). "3 European Countries Plan Jet Fighter Project". The New York Times. The New York Times Company. p. 31.
{{cite news}}
:|access-date=
requires|url=
(help) - ^ Donne, Michael (1985-08-03). "Why three into one will go; Europe's new combat aircraft". Financial Times.
{{cite news}}
:|access-date=
requires|url=
(help) - ^ "Power to progress". Flight International. Reed Business Publishing. 1991-04-10.
{{cite news}}
:|access-date=
requires|url=
(help) - ^ "Eurojet: Company profile". www.eurojet.de. Retrieved 2007-07-05.
- ^ Eurojet: Workshare www.eurojet.de. Retrieved on 5 July 2007.
External links