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Rolls-Royce LiftSystem : ウィキペディア英語版 | Rolls-Royce LiftSystem
The Rolls-Royce LiftSystem, together with the F-135 engine, is an aircraft propulsion system designed for use in the STOVL variant of the F-35 Lightning II. The complete system, known as the Integrated Lift Fan Propulsion System (ILFPS), was awarded the Collier Trophy in 2001.〔"http://naa.aero/userfiles/files/documents/Press%20Releases/Collier%202001%20PR.pdf〕 ==Requirement==
The F-35B STOVL variant of the Joint Strike Fighter (JSF) aircraft is intended to replace the vertical flight Harrier, which was the world's first operational short-takeoff / vertical-landing fighter. A requirement of the JSF is that it can attain supersonic flight, and a suitable vertical lift system that would not compromise this capability was needed for the STOVL variant. The solution came in the form of the Rolls-Royce LiftSystem, developed through a $1.3 billion System Development and Demonstration (SDD) contract from Pratt & Whitney.〔(LiftSystem ) Rolls-Royce website. Retrieved: December 2009〕 This requirement was met on 20 July 2001.〔(Propulsion System in Lockheed Martin Joint Strike Fighter wins Collier Trophy ). Lockheed Martin press release, 28 February 2003. Retrieved: 3 November 2008〕〔(From Supersonic to Hover: How the F-35 Flies ) By Chris Kjelgaard Senior Edito posted: 21 December 2007〕
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