Quick Facts
- Type
- Engine Type
- Definition
- A jet engine with a large fan at the front that bypasses much of the airflow ...
- Used By
- Pilots, Engineers
Definition#
A turbofan is a type of jet engine that features a large ducted fan in front of the gas generator core. Most of the thrust comes from the bypass airflow moved by the fan rather than from the core exhaust.
Why It Matters Operationally#
Turbofans dominate commercial aviation because of their superior fuel efficiency, lower noise, and better performance at subsonic speeds compared to turbojets. The bypass ratio is a key performance indicator.
Related Guides#
- How Jet Engines Work (Turbofan vs Turboprop)
- How Airplanes Fly — The Complete Aviation Fundamentals Guide
- Induced vs Parasite Drag
- How Airlines Make Money