Definition

Noun: A type of jet engine where a large fan at the front, powered by a turbine, draws in air. Most of this air bypasses the core engine, providing additional thrust efficiently and reducing noise compared to a pure turbojet.

Usage

The term "turbofan engine" is used to describe a common, efficient type of propulsion for modern commercial and military aircraft. * Most modern airliners are powered by turbofan engines. * The high bypass ratio of the turbofan engine makes it more fuel-efficient.

Advanced Usage

• Technical Context: Often discussed in terms of its "bypass ratio," which is the ratio of air that bypasses the engine core to the air that goes through it. A high-bypass turbofan is standard for passenger jets.
  • The new design focuses on increasing the bypass ratio of the turbofan engine for greater efficiency.

Variants and Related Words

• Fanjet: A common synonym for a turbofan engine.
• Turbofan: Often used as a shortened, informal form of "turbofan engine."
• Turbojet: A related but different type of jet engine without a large bypass fan.
• Bypass Ratio: A key technical metric for classifying turbofan engines.

Synonyms

• Fanjet
• Bypass engine

Related Phrases

• High-bypass turbofan: The most common type for commercial aviation.
• Turbofan propulsion: Refers to the method of thrust generation using this engine type.

Noun

1. a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust