Geared Turbofan

The geared turbofan is a type of turbofan airplane engine, similar to a turbojet. It consists of a geared ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Typical of this configuration are the long-established Honeywell TFE731, the Honeywell ALF 502/507, and the recent Pratt & Whitney PW1000G. The Aviadvigatel PD-18 is planned.

Read more about Geared TurbofanTechnology, Engines

Other articles related to "geared turbofan, turbofan":

Pratt & Whitney PW1000G
... The Pratt Whitney PW1000G is a high-bypass geared turbofan engine currently selected as the exclusive engine for the Bombardier CSeries, Mitsubishi Regional Jet (MRJ ... The project was previously known as the Geared Turbofan (GTF), and originally the Advanced Technology Fan Integrator (ATFI) ... In a conventional turbofan, once the overall cycle has been defined the tip speed required for the fan dictates the LP shaft rotational speed (i.e ...
Pratt & Whitney PW1000G - Development
... External video PW1000G Pratt Whitney first attempted to build a geared turbofan starting around 1998, known as the PW8000 ... This led to the Geared Turbofan (GTF) programme, which was based around a newly designed core jointly developed with MTU Aero Engines of Germany ... In addition to the geared turbofan, the current design includes a variable-area nozzle, which offers significant economic benefits ...

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