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JSF-F120 Team Moving Toward Full Engine Design & Development

June 17, 2001

LE BOURGET - Following the successful running of an engine core and demonstrator fan rig during 2000, the JSF-F120 Engine Team is beginning full-scale engine design and development work in their ongoing program efforts now on contract.The JSF-F120 team consists of GE Aircraft Engines (GEAE) in Cincinnati, Ohio; Allison Advanced Development Company (AADC) in Indianapolis, Indiana; Rolls-Royce plc (R-R) in Bristol, England; and Philips Enabling Technologies Group (ETG) in The Netherlands.During 2000, the engine's three-stage fan, designed by R-R, successfully operated at full speed and pressure ratio while meeting or exceeding its performance targets. In addition, the engine's core, designed by GE and AADC, accumulated more than 50 hours of successful testing. Both tests were conducted at AADC facilities in Indianapolis.The core engine testing was the centerpiece of the program's four-year Phase II, awarded in 1996, which also involved the Critical Design Review and several component rig tests. The Phase III program, a $460 million contract awarded last year which runs through 2005, will involve component and subsystem testing, leading to full JSF-F120 engine testing in 2004.In Phase III, JSF-F120 engines will be tested for the various JSF variants: Short Take-Off Vertical Landing (STOVL) for the U.S. Marine Corps and United Kingdom Royal Navy, Conventional Take-Off/Landing (CTOL) for the U.S. Air Force, and the Carrier Variant (CV) for the U.S. Navy.From the onset, the JSF-F120 engine has been designed specifically for the JSF production aircraft. The synergistic strengths of the three leading engine companies ensures that the JSF-F120 is a low-risk entry in the Engineering and Manufacturing Development (E&MD) phase, resulting in a production engine that will meet JSF goals for affordability, supportability, and performance.For the JSF-F120, GE is developing a multistage blisk compressor and advanced system components. AADC and GE are jointly developing a coupled turbine system (an integrated high-pressure/low-pressure counter-rotating design), while AADC is responsible for the combustor/diffuser system and the gearbox. Rolls-Royce is developing an increased-flow, three-stage, long-chord hollow titanium blisk fan.The JSF-F120 integrates advanced technology and processes from GE and AADC's highly successful IHPTET (Integrated High Performance Turbine Engine Technology) programs. Philips ETG leads a consortium of Dutch, Norwegian, and Danish companies to develop world-class technologies to be applied to a wide variety of JSF-F120 engine components.