| 翻訳と辞書 |
| General Electric YF120 ： ウィキペディア英語版 |
General Electric YF120
The General Electric YF120 was a variable cycle turbofan engine designed by GE Aircraft Engines in the late 1980s/early 1990s for the United States Air Force's Advanced Tactical Fighter (ATF) project (which resulted in the F-22 Raptor). GE lost the engine competition for this aircraft to Pratt & Whitney F119.
==Development and design==
General Electric began developing the YF120 for the ATF competition in the early 1980s. Unlike competitor Pratt & Whitney, GE elected against developing a conventional low bypass turbofan and instead chose to design a variable cycle engine. This decision was made as a result of the challenging ATF requirement of supercruise. This meant the engine had to produce a large amount of dry thrust (without afterburner) and therefore have high off-design efficiency ("design" being standard cruise conditions).〔Moxon, Julian (1989). ATF rivals ready for engine contest. ''Flight International''. 15-21 Nov 1989, pg. 22-23.〕
The core technology used in the YF120 was developed during two industry-government programs, the Advanced Technology Engine Gas Generator (ATEGG) and Joint Technology Demonstration Engine (JTDE) programs.〔Norris, Guy (1990). Power Struggle. ''Flight International''. 1-7 Aug 1990, pg. 22-23〕
On 3 November 1990, a YF-22 powered by two General Electric YF120s set a supercruise record of Mach 1.58.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「General Electric YF120」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|