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  2. Geared turbofan - Wikipedia

    en.wikipedia.org/wiki/Geared_turbofan

    The geared turbofan is a type of turbofan aircraft engine with a planetary gearbox between the low pressure compressor / turbine and the fan, enabling each to spin at its optimum speed. The benefit of the design is lower fuel consumption and much quieter operation.

  3. Pratt & Whitney PW1000G - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_PW1000G

    The Pratt & Whitney PW1000G family, also marketed as the Pratt & Whitney GTF (geared turbofan), is a family of high-bypass geared turbofan produced by Pratt & Whitney. Following years of development and testing on various demonstrators, the program officially launched in 2008 with the PW1200G destined for the Mitsubishi SpaceJet (a project that ...

  4. Turbofan - Wikipedia

    en.wikipedia.org/wiki/Turbofan

    The first (experimental) high-bypass turbofan engine was the AVCO-Lycoming PLF1A-2, a Honeywell T55 turboshaft-derived engine that was first run in February 1962. The PLF1A-2 had a 40 in diameter (100 cm) geared fan stage, produced a static thrust of 4,320 lb (1,960 kg), [ 43 ] and had a bypass ratio of 6:1. [ 44 ]

  5. Rolls-Royce Trent - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_Trent

    The UltraFan is a geared turbofan with a variable pitch fan system that promises at least 25% efficiency improvement. [49] The UltraFan aims for a 15:1 bypass ratio and 70:1 overall pressure ratio. [50] The Ultrafan keeps the Advance core, but also contains a geared turbofan architecture with variable-pitch fan blades.

  6. Garrett TFE731 - Wikipedia

    en.wikipedia.org/wiki/Garrett_TFE731

    The Garrett TFE731 (now Honeywell TFE731) is a family of geared turbofan engines commonly used on business jet aircraft. Garrett AiResearch originally designed and built the engine, which due to mergers was later produced by AlliedSignal and now Honeywell Aerospace.

  7. Pratt & Whitney is building a new version of its next ... - AOL

    www.aol.com/news/pratt-whitney-building-version...

    Jet engine manufacturer Pratt & Whitney said Thursday it is launching a new version of its next-generation geared turbofan engine for Airbus, its largest commercial customer, as the French plane ...

  8. Lycoming ALF 502 - Wikipedia

    en.wikipedia.org/wiki/Lycoming_ALF_502

    The Lycoming ALF 502/LF 507 (later Honeywell ALF 502/LF 507) is a geared turbofan engine produced by Lycoming Engines, AlliedSignal, and then Honeywell Aerospace. The U.S. military designation for the ALF 502 is YF102.

  9. Spirit Airlines files for bankruptcy: How will it affect my ...

    www.aol.com/spirit-airlines-files-bankruptcy...

    Spirit's troubles deepened after the collapse of its $3.8 billion planned merger with JetBlue Airways in January and the impact of RTX's, Pratt & Whitney Geared Turbofan engines snag that grounded ...