How is a gas turbine engine classified?

A gas turbine engine is classified primarily by its compressor, combustion, or shaft design because these components fundamentally define how the engine operates and its efficiency characteristics.

The compressor type influences the pressure ratio the engine can achieve, the combustion design impacts how effectively fuel is burned and can affect emissions, while the shaft design determines how power is transmitted within the engine system. This classification provides a clear framework for understanding the different types of gas turbines available, including turbojets, turbofans, turboprops, and turboshafts. This systematic classification helps in the design, analysis, and selection of gas turbines for specific applications, ensuring that the engine can meet operational demands effectively based on its core configurations and technologies.