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 2018 The Eurojet consortium was formed in 1986 to co-ordinate and manage the project largely based on XG-40 technology. In common with the XG-40, the EJ200 has a three-stage fan with a high pressure ratio, five-stage low-aspect-ratio high-pressure (HP) compressor, a combustor using advanced cooling and thermal protection, and single-stage HP and LP turbines with powder metallurgy discs and
single crystal blades. A reheat system (afterburner) provides thrust augmentation. The variable area final nozzle is a convergent-divergent design.
EJ200 Mk100 In December 2006, Eurojet completed deliveries of the 363 EJ200s for the Tranche 1 Eurofighters.
EJ200 Mk101 Tranche 2 aircraft require 519 EJ200s. , Eurojet was contracted to produce a total of 1,400 engines for the Eurofighter project.
Landspeed record attempt An EJ200 engine, together with a rocket engine, will power the
Bloodhound LSR for an attempt at the land speed record. The target speed is at least 1000 mph.
BAE Systems Tempest A pair of EJ200 engines are being used in the
BAE Systems Tempest demonstrator, prior to a new production engine being developed for the
Global Combat Air Programme.
Failed bids / cancelled programmes EJ230 - HAL Tejas In 2009, Eurojet entered a bid, in competition with the
General Electric F414, to supply a thrust vectoring variant of the EJ200 to power the Indian
HAL Tejas Mk2 after both the indigenous Kaveri engine and the
General Electric F404 used in prototypes and early production models proved to have insufficient performance. After evaluation and acceptance of the technical offer provided by both Eurojet and GE Aviation, the IAF preferred the EJ200 as it is lighter and more compact but after the commercial quotes were compared in detail
GE Aerospace was declared as the lowest bidder. A second consideration by HAL was industrial offsets: if local Eurojet engine production was set up for the Tejas it would make future Eurofighter aircraft bids to India cheaper and more competitive with the Tejas whereas it was assumed the US would not allow aircraft using the engine to be sold to India. However, in October 2020 Boeing offered to sell F/A-18 aircraft to the Indian Navy which uses the same GE F414 engine.
TAI TFX On 20 January 2015,
ASELSAN of Turkey and Eurojet Turbo GmbH signed a Memorandum of Understanding to collaborate on the EJ200 military turbofan engine programme. It was envisaged that the collaboration would produce a derivative of the EJ200 with thrust vectoring for use in Turkey's
TFX (now Kaan) 5th generation air superiority fighter programme. However, the Eurojet EJ200 was not selected for the TFX program. Instead, the Kaan will use the
General Electric F110 engine until indigenous manufacture by TEI and TRMOTOR.
KAI KF-21 Boramae The EJ200 was one of the two possible engine options (the other was the GE F414) for the C103 design for the
KF-21 (formerly KF-X) programme, but the Republic of Korea Air Force chose the F414-only C109 design.
Liquid fly-back booster The
Liquid fly-back booster programme was cancelled. == Variants ==