(redirected from Geared Turbofan)
Also found in: Thesaurus, Encyclopedia.


1. A turbojet engine in which a fan supplements the total thrust by forcing air directly into the hot turbine exhaust.
2. An aircraft in which a turbofan is used. In both senses also called fanjet.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Aeronautics) Also called: high bypass ratio engine a type of by-pass engine in which a large fan driven by a turbine and housed in a short duct forces air rearwards around the exhaust gases in order to increase the propulsive thrust
2. (Aeronautics) an aircraft driven by one or more turbofans
3. (Aeronautics) the ducted fan in such an engine
Also called (for senses 1, 2): fanjet
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or fan′ jet`,

1. Also called turbofan. a jet engine having a large impeller that takes in air for use partly for the combustion of fuel and partly as exhaust.
2. an airplane having such engines.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.turbofan - an airplane propelled by a fanjet engine
fanjet engine, turbofan engine, turbojet engine, turbojet, turbofan, fanjet, fan-jet - a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust
jet, jet plane, jet-propelled plane - an airplane powered by one or more jet engines
2.turbofan - a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrustturbofan - a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust
afterburner - a device injects fuel into a hot exhaust for extra thrust
fanjet, fan-jet, turbofan, turbojet - an airplane propelled by a fanjet engine
gas turbine - turbine that converts the chemical energy of a liquid fuel into mechanical energy by internal combustion; gaseous products of the fuel (which is burned in compressed air) are expanded through a turbine
jet engine - a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion
propjet, turboprop, turbo-propeller plane - an airplane with an external propeller that is driven by a turbojet engine
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[ˈtɜːbəʊfæn] Nturboventilador m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in periodicals archive ?
Pratt & Whitney has announced that Lebanon-based Middle East Airlines (MEA) has selected the company's Geared Turbofan (GTF) engine to power 11 firm Airbus A320neo family aircraft, the company said.
Pratt & Whitney, a division of United Technologies (UTX), congratulates JetBlue Airways (JBLU) on its selection of 60 firm Airbus (EADSY) A220-300 aircraft, which are powered exclusively by Pratt & Whitney Geared Turbofan engines.
Meanwhile, in Munich, MTU Aero Engines continues to run an advanced geared turbofan in a test cell.
Geared turbofan designs usually make use of a planetary reduction gearsbox to enable the fan to rotate at a different speed than the turbine shaft.
US engine manufacturer Pratt and Whitney has been developing a geared turbofan, due to enter service next year.
What differentiates a geared turbofan from a regular turbofan is that the large fan at the front of the engine operates at a lower speed than the turbine that drives it.
Recently, I wrote an article [1] on Pratt & Whitney's new geared turbofan (GTF) engine, now scheduled for airline operation as early as 2014-2016
A geared turbofan uses a reduction gearbox to disconnect the fan from the turbine so that each component can turn at optimum speed.
In less than two years, the first production aircraft fitted with Pratt and Whitney's new geared turbofan will take to the skies - heralding what some in the aviation industry are labelling as the introduction of a "game changing" engine technology.
NORDIC BUSINESS REPORT-14 July 2008-Volvo Aero enters Pratt & Whitney's Geared Turbofan engine programme(C)1994-2008 M2 COMMUNICATIONS LTD http://www.m2.com
The model will feature a next-generation Pratt & Whitney engine called the Geared Turbofan and advanced aerodynamic design, which will substantially reduce fuel consumption and lower operating costs, according to the Japanese manufacturer.