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  2. Turbofan - Wikipedia

    en.wikipedia.org/wiki/Turbofan

    This arrangement introduces an additional gas leakage path compared to a front-fan configuration and was a problem with this engine with higher-pressure turbine gas leaking into the fan airflow. [47] An aft-fan configuration was later used for the General Electric GE36 UDF (propfan) demonstrator of the early 1980s.

  3. Propfan - Wikipedia

    en.wikipedia.org/wiki/Propfan

    A propfan, also called an open rotor engine, open fan engine [1] [2] or unducted fan (as opposed to a ducted fan), is a type of aircraft engine related in concept to both the turboprop and turbofan, but distinct from both. The design is intended to offer the speed and performance of a turbofan, with the fuel economy of a turboprop.

  4. IAE SuperFan - Wikipedia

    en.wikipedia.org/wiki/IAE_SuperFan

    Review of these design studies in June indicated the design of such a high-bypass engine as a single-rotation, geared fan configuration with variable blade pitch. The fan diameter was expected to range from 108 to 118 in while having a bypass ratio of 18:1 to 20:1. Availability of the engine was estimated between 1992 and 1994. [1]

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  6. General Electric GE36 - Wikipedia

    en.wikipedia.org/wiki/General_Electric_GE36

    The General Electric GE36 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop, known as an unducted fan (UDF) or propfan.The GE36 was developed by General Electric Aircraft Engines, [3] with its CFM International equal partner Snecma taking a 35 percent share of development. [4]

  7. Geared turbofan - Wikipedia

    en.wikipedia.org/wiki/Geared_turbofan

    In a geared turbofan, a planetary reduction gearbox between the fan and the LP shaft allows the latter to run at a higher rotational speed thus enabling fewer stages to be used in both the LP turbine and the LP compressor, increasing efficiency and reducing weight. However, some energy will be lost as heat in the gear mechanism and weight saved ...

  8. Street Fighter IV - Wikipedia

    en.wikipedia.org/wiki/Street_Fighter_IV

    A new update called Ultra Street Fighter IV (ウルトラストリートファイターIV) was announced for release in early 2014 at the 2013 Evolution Championship Series. Before the release of the game, Capcom set up test locations to gather fan feedback that was taken into account for the final product. [116]

  9. Harley-Davidson CVO - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_CVO

    Harley-Davidson CVO ("Custom Vehicle Operations") for motorcycles are a family of models created by Harley-Davidson for the factory custom market. For every model year since the program's inception in 1999, Harley-Davidson has chosen a small selection of its mass-produced motorcycle models and created limited-edition customizations of those platforms with larger-displacement engines, costlier ...