Eurojet EJ200

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.

Development

Rolls-Royce XG-40

Rolls-Royce began development of the XG-40 technology demonstrator engine in 1984. Development costs were met by the British government (85%) and Rolls-Royce.

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. One issue was French insistence that the aircraft be powered by the SNECMA M88, in development at the same time as the XG-40.

Eurojet EJ200

The Eurojet consortium was formed in 1986 to co-ordinate and manage the project largely based on XG-40 technology. 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.

In December 2006, Eurojet completed deliveries of the 363 EJ200s for the Tranche 1 Eurofighters. Tranche 2 aircraft require 519 EJ200s. As of December 2006, Eurojet was contracted to produce a total of 1,400 engines for the Eurofighter project.

Specifications

Source: Rolls-Royce plc (EJ200 Engine Data Fact Sheet)

References

External links

• Eurojet GmbH
• www.eurofighter.com: EJ200
• Rolls-Royce EJ200 Engine Data Fact Files
• www.eurofighter-typhoon.co.uk (unofficial): EJ200 article