A turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion. The word "turbofan" is a combination of references to the preceding generation engine technology of the turbojet and the additional fan stage. It consists of a gas turbine engine which achieves mechanical energy from combustion, and a ducted fan that uses the mechanical energy from the gas turbine to force air rearwards. Thus, whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of that air bypasses these components. A turbofan thus can be thought of as a turbojet being used to drive a ducted fan, with both of these contributing to the thrust.
The PowerJet SaM146 is a turbofan engine produced by the PowerJet joint venture between Snecma (Safran) of France and NPO Saturn of Russia. Developing 68–80 kN (15,000–18,000 lbf) of thrust, the SaM146 is used on the Sukhoi Superjet 100.
The HAL HJT-36 Sitara is a subsonic intermediate jet trainer aircraft designed and developed by Aircraft Research and Design Centre (ARDC) and built by Hindustan Aeronautics Limited (HAL) for the Indian Air Force and the Indian Navy. The HJT-36 will replace the HAL HJT-16 Kiran as the Stage-2 trainer for the two forces.
The Soloviev D-30 is a Soviet two-shaft low-bypass turbofan engine, officially referred to as a "bypass turbojet". It is one of the most powerful turbofan engines developed in the Soviet Union. Development of the turbofan spurred numerous growth versions with increased fan diameter and modified component arrangements. Developed in a short period of time, the D-30 turned out to be one of the most reliable engines in the history of Soviet engine development, and it was recognized with the USSR State Prize.
The Rolls-Royce AE 3007 is a turbofan engine produced by Rolls-Royce North America, sharing a common core with the Rolls-Royce T406 and AE 2100. The engine was originally developed by the Allison Engine Company, hence the "AE" in the model number.
The General Electric F414 is an American afterburning turbofan engine in the 22,000-pound thrust class produced by GE Aerospace. The F414 originated from GE's widely used F404 turbofan, enlarged and improved for use in the Boeing F/A-18E/F Super Hornet. The engine was developed from the F412 non-afterburning turbofan planned for the A-12 Avenger II, before it was canceled.
The GTRE GTX-35VS Kaveri is an afterburning turbofan project under development by the Gas Turbine Research Establishment (GTRE), a lab under the Defence Research and Development Organisation (DRDO) in Bengaluru, India. An Indian design, the Kaveri was originally intended to power production models of the HAL Tejas Light Combat Aircraft (LCA) developed by Hindustan Aeronautics Limited. However, the Kaveri programme failed to satisfy the necessary technical requirements on time and was officially delinked from the Tejas programme in September 2008.
The Saturn AL-31 is a family of axial flow turbofan engines, developed by the Lyulka-Saturn design bureau in the Soviet Union, now NPO Saturn in Russia, originally as a 12.5-tonne powerplant for the Sukhoi Su-27 long range air superiority fighter. The AL-31 currently powers the Su-27 family of combat aircraft and some variants of the Chengdu J-10 multirole jet fighter. Assembly of the engine is also performed under license in India by HAL, for the Sukhoi Su-30MKI. Improved variants power the fifth-generation Sukhoi Su-57 and Chengdu J-20.
The Lotarev DV-2 is a two-spool turbofan engine manufactured in Považská Bystrica, Slovakia by Považské Strojárne Letecké Motory (PSLM) and designed in partnership with Ivchenko Lotarev Design Bureau.
The SNECMA Turbomeca Larzac is a military turbofan manufactured by GRTS, a consortium between the two French companies, SNECMA and Turbomeca. Its main application was on the Dassault/Dornier Alpha Jet.
The Ishikawajima-Harima Heavy Industries (IHI) F3 is a low bypass turbofan engine developed in Japan by Ishikawajima-Harima Heavy Industries for the Kawasaki T-4 jet trainer aircraft. The first prototype engine, the XF3, was manufactured in 1981 and first flew in the XT-4 in July 1985. About 550 have been built.
The HAL HJT 39, aka CAT (Combat Air Trainer), was an Advanced Jet Trainer (AJT) project proposal by Hindustan Aeronautics Limited (HAL) for the Indian Air Force. HAL HJT 39 CAT Programme was Announced at Aero India, February 2005, with mockup of front fuselage and cockpit shown. It was projected to fly within three and a half years of go-ahead with airframe and engine commonality with HAL HJT-36 Sitara, avionics comparable with those of HJT-36 and HAL Tejas.
The Ivchenko-Progress AI-222 is a family of low-bypass turbofan engines.
The Ivchenko Progress D-36 is a three-shaft high bypass ratio turbofan currently produced by the Ukrainian Motor Sich company.
The KB SAT SR-10 is a prototype Russian single-engine jet trainer aircraft, fitted with forward-swept wings. It first flew in 2015 and is being offered to the Russian Air Force and for export.
The HAL HTFE-25 is a 25 kN turbofan engine under development by Hindustan Aeronautics Limited (HAL). The engine can be used in single engine trainer jets, business jets and UAVs weighing up to 5 tonnes and in twin engine configuration for same weighing up to 9 tonnes. Based on the technical feasibility, the market potential for engine is of 200-250 units.
The Saturn AL-51, internal development designation izdeliye30, is an afterburning low-bypass turbofan engine being developed by NPO Saturn to succeed the Saturn AL-41F-1 for improved variants of the Sukhoi Su-57, as well as new potential tactical fighters such as the Sukhoi Su-75 Checkmate.
The Allison TF32 was a turbofan engine proposed by the Allison Division of General Motors in the 1960s. It was named as a finalist for the U.S. Navy's VSX aircraft for anti-submarine warfare (ASW) in January 1967, but lost the competition to the General Electric TF34 in early 1968.
The Ivchenko-Progress AI-322 are a family of low-bypass turbofan engines developed from the AI-222 engine.
The TEI-TF6000 is an indigenously developed turbofan engine by Tusaş Engine Industries (TEI), designed to deliver 6,000 pounds-force (26.7 kN) of thrust. The engine is primarily intended for use in Turkish unmanned aerial vehicles (UAVs), advanced trainer aircraft, and light combat aircraft. The TF6000 forms part of Turkey's broader initiative for self-sufficiency in advanced defense technologies.
