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.
Type :- Turbofan
Manufacturer :- EuroJet Turbo GmbH
First run :-1991
Major applications :-Eurofighter Typhoon
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 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." A reheat (i.e. afterburner) system provides thrust augmentation. The variable area final nozzle is a convergent-divergent design. Unusual for an advanced military turbofan, the fan lacks variable camber inlet guide vanes.
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[update], Eurojet was contracted to produce a total of 1,400 engines for the Eurofighter project.
General Characteristics
Type : Turbofan
Length : 157 inches (4.0 m)
Diameter : 29 inches (0.737 m)
Dry weight : 2,180 lbs (989 kg)
Components
Compressor : 3-stage LP, 5-stage HP
Turbine : 1-stage LP, 1-stage HP
Performance
Maximum thrust : 13,500 lbf (60 kN) dry thrust / 20,000 lbf (90 kN) with reheat
Bypass ratio : 0.4:1
Overall pressure ratio : 26:1
Specific fuel consumption : 21-23 g/kNs dry thrust / 47-49 g/kNs with reheat
Thrust-to-weight ratio : 9.175:1