// PROPULSION SYSTEMS AND ENGINE TECHNOLOGY TERM
Low-Bypass Turbofan
A low-bypass turbofan is a type of jet engine where a small amount of air bypasses the core engine and is mixed with the hot exhaust gases. This design prioritizes high thrust and speed over fuel efficiency, making it suitable for military aircraft.
TECHNICAL DEFINITION
A low-bypass turbofan is a gas turbine engine characterized by a small bypass ratio, typically less than 1.0, where a limited portion of fan airflow bypasses the engine's core combustor and turbines, contributing to overall thrust primarily through the high-velocity jet efflux; these engines deliver high specific thrust and are predominantly employed in military combat aircraft requiring supersonic capabilities and high thrust-to-weight ratios.
BACKGROUND
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 adds kinetic energy to the air passing through it by burning fuel, and a ducted fan powered by energy from the gas turbine to force air rearwards. Whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of the air entering the nacelle bypasses these components. A turbofan can be thought of as a turbojet being used to drive a ducted fan, with both of these contributing to the thrust.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Military Turbofan
- Fighter Jet Engine
- Small Bypass Turbofan
USAGE NOTE
Low-bypass turbofans are predominantly used in military fighter jets and bombers, where high speed and maneuverability are critical, often featuring afterburners for additional thrust.
DEVELOPERS
Organizations developing technology related to Low-Bypass Turbofan.
A world-leading provider of jet and turboprop engines for military and commercial aircraft, including a strong portfolio of low-bypass turbofans for fighter jets and other military applications.
A major American aerospace manufacturer with a significant history in designing and producing turbofan engines, including advanced low-bypass turbofans for military aircraft like the F-35 and F-15.
A global power systems company that develops and manufactures engines for both civil and defense aerospace. Their defense sector produces low-bypass turbofan engines for various military aircraft, such as the Eurofighter Typhoon.
A French aerospace engine manufacturer, part of the Safran group, specializing in turbofan engines for military aircraft (e.g., Rafale fighter jet) and commercial aviation, with significant expertise in low-bypass designs.
A state-owned Chinese aerospace engine manufacturer responsible for developing and producing a range of aircraft engines, including low-bypass turbofans for China's military aircraft programs.
A Russian state-owned company that consolidates the assets of Russia's engine-building industry. It develops and manufactures engines for military aviation, including low-bypass turbofans for aircraft like the MiG and Sukhoi fighters.
Germany's leading engine manufacturer, a key player in the development, manufacture, and support of military aircraft engines, including modules and components for low-bypass turbofans used in international collaborative projects.
A Japanese heavy industry manufacturer involved in aerospace and defense. They develop and produce aircraft engines, including components and licensed production of turbofan engines for military applications, encompassing low-bypass designs.